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Original Articles
Colonoscopy
Endoscopic treatment of rectal neuroendocrine tumors: a consecutive analysis of multi-institutional data
Jae Won Shin, Eun-Jung Lee, Sung Sil Park, Kyung Su Han, Chang Gyun Kim, Hee Chul Chang, Won Youn Kim, Eui Chul Jeong, Dong Hyun Choi
Ann Coloproctol. 2025;41(3):221-231.   Published online June 30, 2025
DOI: https://doi.org/10.3393/ac.2024.00927.0132
  • 6,126 View
  • 79 Download
  • 2 Web of Science
  • 2 Citations
AbstractAbstract PDF
Purpose
The incidence of rectal neuroendocrine tumors (NETs) is increasing owing to a rise in colonoscopy screening. For the endoscopic removal of NETs, complete resection including the submucosal layer is essential. Therefore, appropriate endoscopic resection techniques are of critical importance. This study aimed to analyze data on rectal NETs and help provide guidance for their endoscopic treatment.
Methods
A retrospective analysis was conducted on data from patients who underwent resection for rectal NETs at 6 institutions between 2010 and 2021.
Results
A total of 1,406 tumors were resected from 1,401 patients. During a mean follow-up period of 55.4 months, there were 8 cases (0.5%) of recurrence. Overall, a complete resection was achieved in 77.6% of the patients, with modified endoscopic mucosal resection (mEMR) and endoscopic submucosal dissection (ESD) showing the highest rate at 86.0% and 84.9%, respectively, followed by conventional EMR (cEMR; 68.7%) and snare polypectomy (59.0%). In the subgroup analysis, statistically significant differences were observed in complete resection rates based on tumor size. ESD and mEMR demonstrated significantly higher complete resection rates compared with cEMR. Univariate and multivariate analyses showed that tumor location of the lower rectum and advanced techniques (mEMR and ESD) were significant prognostic factors for complete resection rates.
Conclusion
When encountering rectal subepithelial lesions on endoscopic examination, endoscopists should consider the possibility of NETs and carefully decide on the endoscopic treatment method. Therefore, it is advisable to perform mEMR or ESD to achieve complete resection, especially for rectal NETs measuring ≤10 mm.

Citations

Citations to this article as recorded by  
  • Defining endoscopic candidacy for intermediate size rectal neuroendocrine tumors
    Yu-Hang Sheng, Qi-Yang Chen, Xiao-Meng Li, Zhi-Xiang Zhou, Tian-Le Xue
    World Journal of Gastroenterology.2026;[Epub]     CrossRef
  • Long-term outcomes of endoscopic resection of 1-1.5 cm sized grade 1 rectal neuroendocrine tumor: A retrospective study
    Minjee Kim, Yuwon Kim, Ji Eun Kim, Sung Noh Hong, Dong Kyung Chang, Young-Ho Kim, Eun Ran Kim
    World Journal of Gastroenterology.2025;[Epub]     CrossRef
Colonoscopy
Analysis of adenoma detection rate of colonoscopy among trainees
Young Min Song, Kyung Su Han, Byung Chang Kim, Chang Won Hong, Bun Kim, Min Chul Kim, Myeong Jae Jin, Dae Kyung Sohn
Ann Coloproctol. 2024;40(6):548-554.   Published online August 28, 2024
DOI: https://doi.org/10.3393/ac.2023.00199.0028
  • 4,761 View
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  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDFSupplementary Material
Purpose
To analyze adenoma detection rate (ADR) and related quality indicators of colonoscopy among trainees and make recommendations for appropriate colonoscopy training.
Methods
ADR and related indicators of colonoscopies performed by 3 trainees and 5 colonoscopy experts between March and November 2022 were analyzed. These indicators were analyzed in both the entire patients and the screening/surveillance group. In addition, the training period of the 3 trainees was divided into 3 sections, and the changes in these indicators were examined.
Results
The mean ADR of the 3 trainees was 50.6%. In the screening/surveillance group, the mean ADR of the 3 trainees was 51.8%, showing no significant difference from the experts' ADR (53.4%). When the training period was divided into 3 sections and analyzed in the screening/surveillance group, the mean ADR of the trainees gradually increased to 49.4%, 52.6%, and 53.6%, respectively; however, the difference was insignificant. Analyzing each trainee’s ADR, there was a significant difference among the 3 trainees (58.5% vs. 44.7% vs. 50.2%, P=0.008). However, in the third section of the training period, the 3 trainees’ ADRs were 53.0%, 49.2%, and 57.3%, respectively, showing no significant difference (P=0.606).
Conclusion
In the early stages of training, the ADR was higher than recommended; however, there were variances in ADR between individuals. As the training period passed, the ADR became similar at the expert level, whereas the difference in ADR between trainees decreased. Therefore, efforts to increase ADR should be made actively from the beginning of training and continued during the training period.

Citations

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  • Adenoma per polypectomy as a training metric in colonoscopy: a retrospective analysis of trainee progression compared to expert performance
    Young Min Song, Kyung Su Han, Byung Chang Kim, Chang Won Hong, Bun Kim, Dae Kyung Sohn
    Annals of Surgical Treatment and Research.2025; 109(2): 113.     CrossRef
Colorectal cancer
Colonic stenting: is the bridge to surgery worth its cost? A cost-effectiveness analysis at a single Asian institution
Michelle Shi Qing Khoo, Frederick H. Koh, Sharmini Su Sivarajah, Leonard Ming-Li Ho, Darius Kang-Lie Aw, Cheryl Xi-Zi Chong, Fung Joon Foo, Winson Jianhong Tan
Ann Coloproctol. 2024;40(6):555-563.   Published online August 5, 2024
DOI: https://doi.org/10.3393/ac.2023.00738.0105
  • 9,046 View
  • 152 Download
  • 2 Web of Science
  • 2 Citations
AbstractAbstract PDF
Purpose
In patients with acute left-sided colonic obstruction, stenting can convert an emergency operation into a semi-elective procedure. However, its use continues to be debated. We performed a cost-effective analysis using our institution’s experiences.
Methods
Endoscopic, surgical, and financial details were prospectively collected for patients who presented with acute colonic obstruction and underwent stenting between 2019 and 2022. Outcomes were defined as technical/clinical success and successful surgical resection. The financial cost of stenting was compared with the expected cost without stenting.
Results
Forty patients were included, with 29 undergoing definitive resection. The most common pathology was primary colon cancer (27 patients, 93%). Endoscopic stenting had high technical (90%) and clinical (83%) success rates, with low rates of complications such as perforation (2 patients, 7%) and migration (0 patients, 0%). As a bridge to surgery, the median procedure time was 226 minutes and the surgical outcomes also showed a low rate of complications (3 patients, 11%), such as anastomotic leakage (0 patients, 0%), intraabdominal abscesses (2 patients, 7%), and 30-day postoperative mortality (0 patients, 0%). The cumulative costs with colonic stenting were $32,900, while the expected costs with emergency surgery, including stoma reversal, were $40,700 (healthcare cost-savings of $7,800 per person). The difference was mainly due to the avoidance of upfront emergency surgery. The incremental cost-effectiveness ratio was 0.81, favoring colonic stenting over upfront emergency surgery.
Conclusion
Colonic stenting as a bridge to surgery is safe and cost-effective for treating left-sided colonic obstruction with high success rates and low complication rates.

Citations

Citations to this article as recorded by  
  • Nationwide Analysis of Right-Sided Colonic Stenting: Rarely Used but Reduces Stoma Creation Significantly
    Khalid Ahmed, Ahmed Dirweesh, Zachary D. Leslie, Yasmin Ali, Nabeel Azeem, Eric Wise, Cyrus Jahansouz, Martin Freeman, Stuart K. Amateau
    Techniques and Innovations in Gastrointestinal Endoscopy.2026; 28(1): 250952.     CrossRef
  • Global Use and Outcomes of Endoscopic Stenting in Acute Malignant Left-Sided Colonic Obstruction: A Secondary Analysis of APOLLO, An International, Prospective Cohort Study

    Diseases of the Colon & Rectum.2025; 68(12): 1458.     CrossRef
Colorectal cancer
Obstructing colorectal cancer: a population-based review of colonic stenting in Queensland, Australia
Cian Keogh, Julie Moore, Danica Cossio, Nick Smith, David A. Clark
Ann Coloproctol. 2024;40(3):268-275.   Published online June 25, 2024
DOI: https://doi.org/10.3393/ac.2023.00640.0091
  • 3,298 View
  • 175 Download
AbstractAbstract PDF
Purpose
Stenting is a useful treatment option for malignant colonic obstruction, but its role remains unclear. This study was designed to establish how stents have been used in Queensland, Australia, and to review outcomes.
Methods
Patients diagnosed with colorectal cancer in Queensland from January 1, 2008, to December 31, 2014, who underwent colonic stent insertion were reviewed. Primary outcomes of 5-year survival, 30-day mortality, and overall length of survival were calculated. The secondary outcomes included patient and tumor factors, and stoma rates.
Results
In total, 319 patients were included, and distant metastases were identified in 183 patients (57.4%). The 30-day mortality rate was 6.6% (n=21), and the 5-year survival was 11.9% (n=38). Median survival was 11 months (interquartile range, 4–27 months). A further operation (hazard ratio [HR], 0.19; P<0.001) and chemotherapy and/or radiotherapy (HR, 0.718; P=0.046) reduced the risk of 5-year mortality. The presence of distant metastases (HR, 2.052; P<0.001) and a comorbidity score of 3 or more (HR, 1.572; P=0.20) increased mortality. Surgery was associated with a reduced risk of mortality even in patients with metastatic disease (HR, 0.14; P<0.001). Twenty-two patients (6.9%) ended the study period with a stoma.
Conclusion
Colorectal stenting was used in Queensland in several diverse scenarios, in both localized and metastatic disease. Surgery had a survival advantage, even in patients with metastatic disease. There was no survival difference according to whether patients were socioeconomically disadvantaged, diagnosed in a major city or not, or treated at private or public hospitals. Stenting proved a valid treatment option with low stoma rates.
Case Report
Colorectal cancer
Neuroendocrine carcinoma associated with chronic ulcerative colitis: a case report and review of the literature
Yumi Yokota, Hiroyuki Anzai, Yuzo Nagai, Hirofumi Sonoda, Takahide Shinagawa, Yuichiro Yoshioka, Shinya Abe, Yuichiro Yokoyama, Hiroyuki Matsuzaki, Shigenobu Emoto, Koji Murono, Kazuhito Sasaki, Hiroaki Nozawa, Tetsuo Ushiku, Soichiro Ishihara
Ann Coloproctol. 2024;40(Suppl 1):S32-S37.   Published online April 19, 2023
DOI: https://doi.org/10.3393/ac.2022.00801.0114
  • 4,908 View
  • 143 Download
  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDF
Adenocarcinoma is a common histological type of ulcerative colitis-associated cancer (UCAC), whereas neuroendocrine carcinoma (NEC) is extremely rare. UCAC is generally diagnosed at an advanced stage, even with regular surveillance colonoscopy. A 41-year-old man with a 17-year history of UC began receiving surveillance colonoscopy at the age of 37 years; 2 years later, dysplasia was detected in the sigmoid colon, and he underwent colonoscopy every 3 to 6 months. Approximately 1.5 years thereafter, a flat adenocarcinoma lesion occurred in the rectum. Flat lesions with high-grade dysplasia were found in the sigmoid colon and surrounding area. The patient underwent laparoscopic total proctocolectomy and ileal pouch-anal anastomosis with ileostomy. Adenocarcinoma was diagnosed in the sigmoid colon and NEC in the rectum. One year postoperation, recurrence or metastasis was not evident. Regular surveillance colonoscopy is important in patients with long-term UC. A histological examination of UCAC might demonstrate NEC.

Citations

Citations to this article as recorded by  
  • Depressed lesion detected during surveillance colonoscopy in a patient with ulcerative colitis
    Keijiro Numa, Kazuki Kakimoto, Noboru Mizuta, Naohiko Kinoshita, Kei Nakazawa, Ryoji Koshiba, Yuki Hirata, Ken Kawakami, Takako Miyazaki, Shiro Nakamura, Hiroki Nishikawa
    Intestinal Research.2026; 24(1): 189.     CrossRef
Review
AI colonoscopy
The imitation game: a review of the use of artificial intelligence in colonoscopy, and endoscopists’ perceptions thereof
Sarah Tham, Frederick H. Koh, Jasmine Ladlad, Koy-Min Chue, SKH Endoscopy Centre, Cui-Li Lin, Eng-Kiong Teo, Fung-Joon Foo
Ann Coloproctol. 2023;39(5):385-394.   Published online March 10, 2023
DOI: https://doi.org/10.3393/ac.2022.00878.0125
  • 9,566 View
  • 156 Download
  • 3 Web of Science
  • 3 Citations
AbstractAbstract PDF
The development of deep learning systems in artificial intelligence (AI) has enabled advances in endoscopy, and AI-aided colonoscopy has recently been ushered into clinical practice as a clinical decision-support tool. This has enabled real-time AI-aided detection of polyps with a higher sensitivity than the average endoscopist, and evidence to support its use has been promising thus far. This review article provides a summary of currently published data relating to AI-aided colonoscopy, discusses current clinical applications, and introduces ongoing research directions. We also explore endoscopists’ perceptions and attitudes toward the use of this technology, and discuss factors influencing its uptake in clinical practice.

Citations

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  • New Concept of Colonoscopy Assisted by a Microwave-Based Accessory Device: First Clinical Experience
    Oswaldo Ortiz, Oriol Sendino, Silvia Rivadulla, Alejandra Garrido, Luz María Neira, Josep Sanahuja, Pilar Sesé, Marta Guardiola, Glòria Fernández-Esparrach
    Cancers.2025; 17(7): 1073.     CrossRef
  • Deep learning model for gastrointestinal polyp segmentation
    Zitong Wang, Zeyi Wang, Pengyu Sun
    PeerJ Computer Science.2025; 11: e2924.     CrossRef
  • Does AI have utility in medical student surgical education? A comparative analysis of chatbots in answering standardized surgical multiple-choice questions
    Natalia DaFonte, Angelo Cadiente, Catherine Implicito, Natasha Becker, Burton Surick
    Global Surgical Education - Journal of the Association for Surgical Education.2025;[Epub]     CrossRef
Original Articles
Benign GI diease,Benign diesease & IBD,Complication,Surgical technique
Efficacy and Safety of Endoscopic Clipping for Acute Anastomotic Bleeding After Colorectal Surgery
Ryun Kyong Ha, Kyung Su Han, Sung Sil Park, Dae Kyung Sohn, Chang Won Hong, Byung Chang Kim, Bun Kim
Ann Coloproctol. 2022;38(3):262-265.   Published online October 26, 2021
DOI: https://doi.org/10.3393/ac.2021.00297.0042
  • 7,052 View
  • 184 Download
  • 4 Web of Science
  • 3 Citations
AbstractAbstract PDF
Purpose
Anastomotic bleeding after colorectal surgery is a rare, mostly self-limiting, postoperative complication that could lead to a life-threatening condition. Therefore, prompt management is required. This study aimed to evaluate the efficacy and safety of endoscopic clipping for acute anastomotic bleeding after colorectal surgery.
Methods
We retrospectively reviewed the data of patients pathologically diagnosed with colorectal cancer at National Cancer Center, Korea from January 2018 to November 2020, which presented with anastomotic bleeding within the first postoperative week and were endoscopically managed with clips.
Results
Nine patients had anastomotic bleeding, underwent endoscopic management, and, therefore, were included in this study. All patients underwent laparoscopic (low/ultralow) anterior resection with mechanical double-stapled anastomosis. Anastomotic bleeding was successfully managed through a colonoscopy with clips on the first trial in all patients. Hypovolemic shock occurred in one patient, following anastomotic breakdown.
Conclusion
Endoscopic clipping seems to be an effective and safe treatment for anastomotic bleeding with minimal physiologic stress, easy accessibility, and scarce postoperative complications. However, a surgical backup should always be considered for massive bleeding.

Citations

Citations to this article as recorded by  
  • Multidisciplinary management of a patient with vesicosigmoid fistula and multisystem diseases undergoing stoma reversal: a case report
    Jian Yang, Li Zhang, Ke Zeng
    BMC Surgery.2026;[Epub]     CrossRef
  • Post-Surgical Imaging Assessment in Rectal Cancer: Normal Findings and Complications
    Federica De Muzio, Roberta Fusco, Carmen Cutolo, Giuliana Giacobbe, Federico Bruno, Pierpaolo Palumbo, Ginevra Danti, Giulia Grazzini, Federica Flammia, Alessandra Borgheresi, Andrea Agostini, Francesca Grassi, Andrea Giovagnoni, Vittorio Miele, Antonio B
    Journal of Clinical Medicine.2023; 12(4): 1489.     CrossRef
  • Preventing Anastomotic Leakage, a Devastating Complication of Colorectal Surgery
    Hyun Gu Lee
    The Ewha Medical Journal.2023;[Epub]     CrossRef
Longer withdrawal time is not associated with increased patient discomfort in colonoscopy: a retrospective observational study
Kenichiro Majima, Yosuke Muraki
Ann Coloproctol. 2023;39(1):71-76.   Published online September 7, 2021
DOI: https://doi.org/10.3393/ac.2021.00388.0055
  • 5,840 View
  • 139 Download
  • 2 Web of Science
  • 2 Citations
AbstractAbstract PDF
Purpose
Withdrawal time of sufficient length is a quality indicator for colonoscopies. Nonetheless, whether extending the withdrawal time contributes to patient discomfort remains unknown. This study aimed to clarify the relationship between colonoscopy withdrawal time and patient discomfort.
Methods
A cohort of consecutive patients who underwent colonoscopy at a single institution from October 2018 to January 2020 was retrospectively analyzed. Initially, the relationship between the mean withdrawal time for each colonoscopist in no-finding examinations and polyp detection rate was investigated in 2,043 patients. Subsequently, the primary outcome of association between withdrawal time and patient discomfort, as determined by patient questionnaire, was assessed for each examination in 481 patients from the initial cohort.
Results
The mean withdrawal time was strongly correlated with polyp detection rate (correlation coefficient, 0.72; P<0.001). In contrast, longer withdrawal time was not associated with increased discomfort; however, there was a weak inverse correlation between patient discomfort and longer withdrawal time (correlation coefficient, –0.25; P<0.001). Similarly, multiple regression analysis adjusted for confounding variables revealed that longer withdrawal time was not associated with increased patient discomfort (regression coefficient, –0.04 for each 1-minute increase in the length of withdrawal time; P=0.45).
Conclusion
This study showed for the first time that longer withdrawal times did not result in increased discomfort, indicating that withdrawal time can be extended to sufficient length for optimal patient examination and polyp detection.

Citations

Citations to this article as recorded by  
  • Impact of withdrawal time on the adenoma detection rate in elderly patients during unsedated colonoscopy: a retrospective multicenter study
    Fu-qiang Liu, Ying-hao He, Han Yan, Jin-wen Liao, Wen-juan Ding, Yu-ting Huang, Zhi-qiang Du, Xiang-rong Zhou, Zheng Jiang
    BMC Gastroenterology.2025;[Epub]     CrossRef
  • Does longer withdrawal time increase discomfort?
    Kenichiro Majima, Yosuke Muraki
    Digestive Endoscopy.2024; 36(4): 496.     CrossRef
Technical Note
Benign GI diease,Rare disease & stoma,Surgical technique
Endoscopic Removal of a Fecalith or Fecomucolith in a Rectal Stump or Pouch
Evie Yeap, Ratheesraj Ratinam, Asiri Arachchi, James Lim, Yeng Kwang Tay, Zeev Duieb
Ann Coloproctol. 2021;37(5):346-348.   Published online August 25, 2021
DOI: https://doi.org/10.3393/ac.2021.00206.0029
  • 4,710 View
  • 83 Download
  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDF
Fecaliths or fecomucoliths can form in rectal stumps after a Hartmann procedure or in a coloneovaginal conduit. They can cause significant distress to the patient by causing symptoms such as discharge and odor. We describe a novel and effective method of endoscopic obliteration and removal where other techniques such as removal during examination under anesthesia or serial enemas have failed. By using a combination of hydrodissection with a saline injector gun and biopsy forceps and a polypectomy snare to break down the fecomucolith or fecalith, this troublesome problem can be resolved endoscopically. Successful removal of the fecalith/fecomucolith and resolution of the symptoms for the patients were achieved. No complications are reported. We describe an effective and novel method for endoscopic removal of fecaliths and fecomucoliths.

Citations

Citations to this article as recorded by  
  • Beyond the Biliary Tree: A Giant Calcified Rectal Fecalith Treated With Electrohydraulic Lithotripsy
    Michael Gianarakis, Ameen Taufiq, Hasan S. Raza, Omar T. Ahmed, Parth Thaker, Jesse Hartpence, Brian Boulay
    ACG Case Reports Journal.2025;[Epub]     CrossRef
Case Reports
Benign bowel disease
A case report of a colouterine fistula treatment: when the patient chooses the steeplechase
Stefano Pontone, Pier Giorgio Nardis, Chiara Eberspacher, Domenico Mascagni
Ann Coloproctol. 2023;39(4):366-370.   Published online August 9, 2021
DOI: https://doi.org/10.3393/ac.2021.00318.0045
  • 6,050 View
  • 78 Download
AbstractAbstract PDF
Colouterine fistula is a rare disease that is primarily treated using surgical approaches. Although invasive surgery is controversial in terms of techniques and results, minimally invasive endoscopic treatments have not been widely described. However, because it is rare for these fistulas to close spontaneously, surgical treatment is often mandatory. Appropriate management of colouterine fistula is complicated, especially when the patient refuses surgery. In this case study, we provide the first description of a minimally invasive endoscopic treatment of an iatrogenic colouterine fistula using a self-expandable metallic stent after an over-the-scope clip malposition.
Benign bowel disease
Successful detection and removal of predictable juvenile polyp: a case report
Kwang Yeon Kim, Jin Su Kim
Ann Coloproctol. 2023;39(5):435-438.   Published online July 21, 2021
DOI: https://doi.org/10.3393/ac.2021.00311.0044
  • 8,336 View
  • 142 Download
  • 2 Web of Science
  • 1 Citations
AbstractAbstract PDF
Juvenile polyp makes up 70% to 80% of pediatric colon polyp, and the average age of diagnosis is 2 to 5 years. The treatment of juvenile polyp in children is polypectomy through colonoscopy. The fact that the lumen of intestine is much smaller than that of adults and the need to perform polypectomy is a heavy burden on the endoscopists. Recently, fecal calprotectin (FC) has been found to be related to juvenile polyp. A previously healthy 34-month-old female patient presented to the pediatric gastroenterology department with intermittent bloody stools that were progressively worsening. FC level was abnormally elevated at 2,719 µg/g (normal, < 50 µg/g). The polyp was successfully removed with a endoscopic polypectomy. This is the first case in Korea to show that FC can be used to screen juvenile polyp in children. Caution must be taken that FC levels can increase with inflammation, regardless of the number or size of the polyps.

Citations

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  • Why is it worth looking for colorectal polyps in children using ultrasound? A case report and literature review
    Katarzyna Kamila Bąk-Drabik, Monika Prokurat, Agnieszka Szymlak, Anna Jarzumbek, Paweł Ziora, Jarosław Kwiecień
    Pediatria i Medycyna Rodzinna.2025; 20(4): 418.     CrossRef
Benign GI diease
Long, Pedunculated, Large Hyperplastic Polyp of the Terminal Ileum Protruding Through the Ileocecal Valve: A Case Report
Guh Jung Seo, Hyung-Suk Cho
Ann Coloproctol. 2020;36(6):421-424.   Published online March 16, 2020
DOI: https://doi.org/10.3393/ac.2018.11.29.1
  • 7,826 View
  • 99 Download
AbstractAbstract PDF
Small-bowel tumors, both benign and malignant, are rare lesions that clinicians often do not encounter, accounting for less than 2% of gastrointestinal malignancies. Usually, benign small-bowel tumors, including polyps, are asymptomatic. The diagnosis of small-bowel tumors is difficult because of an often-delayed presentation and nonspecific signs and symptoms. We report an incidentally detected case of a long, pedunculated, large polyp of the terminal ileum, which protruded through the ileocecal valve into the cecum that was removed by colonoscopy in a 41-year-old male with intermittent right-sided lower-abdominal pain. The polyp was resected through snare polypectomy without complications. The histopathology of the resected polyp was confirmed as an ileal hyperplastic polyp. Two years later, there was no recurrence observed via postpolypectomy surveillance colonoscopy.
Benign proctology
Anal Gland/Duct Cyst: A Case Report
Guh Jung Seo, Ju Heon Seo, Kyung Jin Cho, Hyung-Suk Cho
Ann Coloproctol. 2020;36(3):204-206.   Published online January 20, 2020
DOI: https://doi.org/10.3393/ac.2018.09.06.1
  • 23,607 View
  • 152 Download
  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDF
Anal gland/duct cyst (AGC) is rare and observed in only 0.05% of patients undergoing anal surgery. AGC is thought to be a retention cyst in the anal gland and arises when an obstruction of the anal duct causes fluid collection in the anal gland. We report a case of AGC in a 66-year-old woman without anal symptoms. Found by colonoscopy, the AGC was excised transanally. The histopathology of the specimen confirmed AGC. Colonoscopists should include AGC in the differential diagnosis of anal canal mass and rule out of malignancy. Excision is recommended for definitive diagnosis and treatment.

Citations

Citations to this article as recorded by  
  • Cystic lesions of the retrorectal space
    Ian S Brown, Anna Sokolova, Christophe Rosty, Rondell P Graham
    Histopathology.2023; 82(2): 232.     CrossRef
Original Articles
Bowel Preparation for Surveillance Colonoscopy After Colorectal Resection: A New Perspective
Donghyoun Lee, Ho-Kyung Chun
Ann Coloproctol. 2019;35(3):129-136.   Published online June 30, 2019
DOI: https://doi.org/10.3393/ac.2018.11.08
  • 5,815 View
  • 71 Download
  • 1 Web of Science
  • 4 Citations
AbstractAbstract PDF
Purpose
Inadequate bowel preparation (IBP) is commonly observed during surveillance colonoscopy after colorectal resection. We investigated potential risk factors affecting bowel preparation.
Methods
We studied potential factors affecting bowel preparation quality. The Boston bowel preparation score was used to measure bowel preparation quality. Factors affecting IBP were analyzed, including age, body mass index, time elapsed between surgery and colonoscopy, and amount of bowel preparation drug consumed (conventional-volume vs. low-volume). Odds ratios were calculated for IBP.
Results
This retrospective cohort study included 1,317 patients who underwent colorectal resection due to malignancy. Of these patients, 79% had adequate bowel preparation and 21% had IBP. In multivariate regression analysis, a surveillance colonoscopy within 1 year after surgery and age >80 were used as independent predictors of IBP. IBP rate of the low-volume group was significantly higher than that of the conventional-volume group among patients who underwent a surveillance colonoscopy within 1 year after surgery.
Conclusion
For surveillance colonoscopy after colorectal resection, bowel preparation is affected by factors including colonoscopy timing after surgery and age. We recommend the use of conventional-volume 4-L polyethylene glycol solution when performing a surveillance colonoscopy, especially up to 1 year after surgery.

Citations

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  • Patient Perspectives on Barriers and Facilitators to 1-year Surveillance Colonoscopy Completion in Survivors of Colorectal Cancer: A Multimethod Analysis
    Pranusha Atuluru, C. Natasha Kwendakwema, Ari M. Bell-Brown, Talor Hopkins, Vlad V. Simianu, Veena Shankaran, Rachel B. Issaka
    Diseases of the Colon & Rectum.2026; 69(3): 442.     CrossRef
  • Criteria of qualitative colonoscopy in patients after colorectal surgery (case reports)
    I. Y. Korzheva, K. V. Krasnova, A. A. Likutov
    Koloproktologia.2025; 24(1): 73.     CrossRef
  • A Modified Boston Bowel Preparation Scale After Colorectal Surgery
    Lorenzo Dioscoridi, Edoardo Forti, Francesco Pugliese, Marcello Cintolo, Angelo Italia, Marta Bini, Giulia Bonato, Aurora Giannetti, Massimiliano Mutignani
    Annals of Coloproctology.2021; 37(4): 195.     CrossRef
  • Bowel Preparation for Surveillance Colonoscopy After a Colorectal Resection: A New Perspective
    Jin Soo Kim
    Annals of Coloproctology.2019; 35(3): 107.     CrossRef
Variation in the Height of Rectal Cancers According to the Diagnostic Modalities
Seung-Seop Yeom, In Ja Park, Dong-Hoon Yang, Jong Lyul Lee, Yong Sik Yoon, Chan Wook Kim, Seok-Byung Lim, Sung Ho Park, Hwa Jung Kim, Chang Sik Yu, Jin Cheon Kim
Ann Coloproctol. 2019;35(1):24-29.   Published online February 28, 2019
DOI: https://doi.org/10.3393/ac.2018.07.31
  • 9,023 View
  • 126 Download
  • 13 Web of Science
  • 13 Citations
AbstractAbstract PDF
Purpose
Although the height of a rectal tumor above the anal verge (tumor height) partly determines the treatment strategy, no practical standard exists for reporting this. We aimed to demonstrate the differences in tumor height according to the diagnostic modality used for its measurement.
Methods
We identified 100 patients with rectal cancers located within 15 cm of the anal verge who had recorded tumor heights measured by using magnetic resonance imaging (MRI), colonoscopy, and digital rectal examination (DRE). Tumor height measured by using MRI was compared with those measured by using DRE and colonoscopy to assess reporting inconsistencies. Factors associated with differences in tumor height among the modalities were also evaluated.
Results
The mean tumor heights were 77.8 ± 3.3, 52.9 ± 2.3, and 68.9 ± 3.1 mm when measured by using MRI, DRE, and colonoscopy, respectively (P < 0.001). Agreement among the 3 modalities in terms of tumor sublocation within the rectum was found in only 39% of the patients. In the univariate and the multivariate analyses, clinical stage showed a possible association with concordance among modalities, but age, sex, and luminal location of the tumor were not associated with differences among modalities.
Conclusion
The heights of rectal cancer differed according to the diagnostic modality. Tumor height has implications for rectal cancer’s surgical planning and for interpreting comparative studies. Hence, a consensus is needed for measuring and reporting tumor height.

Citations

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  • The efficacy of open transanal drainage tube against anastomotic leakage in left-sided colorectal cancer surgery: a propensity score matching study
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Lifestyle Factors and Bowel Preparation for Screening Colonoscopy
Jong Hee Hyun, Sang Jin Kim, Jung Hun Park, Gyung Ah Wie, Jeong-seon Kim, Kyung Su Han, Byung Chang Kim, Chang Won Hong, Dae Kyung Sohn
Ann Coloproctol. 2018;34(4):197-205.   Published online August 31, 2018
DOI: https://doi.org/10.3393/ac.2018.03.13
  • 6,883 View
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AbstractAbstract PDF
Purpose
The quality of bowel preparation is a major determinant of the quality of colonoscopy. This study evaluated lifestyle factors, including usual dietary style, associated with bowel preparation.
Methods
This retrospective study evaluated 1,079 consecutive subjects who underwent complete colonoscopy from December 2012 to April 2014 at National Cancer Center of Korea. Questionnaires on bowel preparation were completed by the subjects, with the quality of bowel preparation categorized as optimal (excellent or good) or suboptimal (fair, poor or inadequate). Lifestyle factors associated with bowel preparation were analyzed.
Results
The 1,079 subjects included 680 male (63.0%) and 399 female patietns (37.0%), with a mean age of 49.6 ± 8.32 years. Bowel preparation was categorized as optimal in 657 subjects (60.9%) and as suboptimal in 422 (39.1%). Univariate analyses showed no differences between groups in lifestyle factors, such as regular exercise, alcohol intake, smoking, and dietary factor. Body mass index (BMI) > 25 kg/m2 was the only factor associated with suboptimal bowel preparation on both the univariate (P = 0.007) and the multivariate (odds ratio, 1.437; 95% confidence interval, 1.104–1.871; P = 0.007) analyses.
Conclusion
Most lifestyle factors, including dietary patterns, exercise, alcohol intake and smoking, were not associated with suboptimal bowel preparation in Koreans. However, BMI > 25 kg/m2 was independently associated with suboptimal bowel preparation. More intense preparation regimens before colonoscopy can be helpful in subjects with BMI > 25 kg/m2.

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    Shi Jun-li, Wang Lei, Ying Chun-ying, Fu Xin-zi, Li Bing-qing
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    Monica Passi, Farial Rahman, Christopher Koh, Sheila Kumar
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  • Risk Factors for Suboptimal Bowel Preparation for Colonoscopy in Pediatric Patients
    Pooja Reddy, Ali Mencin, Benjamin Lebwohl
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  • Risk Factors of Inadequate Bowel Preparation for Screening Colonoscopy
    Efrat L. Amitay, Tobias Niedermaier, Anton Gies, Michael Hoffmeister, Hermann Brenner
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    Hyo‐Joon Yang, Dong Il Park, Soo‐Kyung Park, Chang Kyun Lee, Hyo Jong Kim, Shin Ju Oh, Jung Rock Moon, Beom Jae Lee, Jin Sung Koh, Hyun Soo Kim, Seon‐Young Park, Dong Hyun Kim, Jaeyoung Chun, Eun Ae Kang, Jung Kim, Hosim Soh, Chang Soo Eun, You Sun Kim, Y
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Case Reports
Colonoscopic Removal of an Intrauterine Device That Had Perforated the Rectosigmoid Colon
Jin Myeong Huh, Ki Seok Kim, Yong Seok Cho, Dong Kwon Suh, Jae Uk Lee, Seong Deuk Baek, Sin Kil Moon
Ann Coloproctol. 2018;34(2):106-108.   Published online April 30, 2018
DOI: https://doi.org/10.3393/ac.2017.10.30
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AbstractAbstract PDF
The intrauterine device (IUD) is a widely used contraceptive method. One of the most serious and rare complications of using an IUD is colon perforation. We report a case of colonoscopic removal of an IUD that had perforated into the rectosigmoid colon in a 42-year-old woman who presented with no symptoms. Colonoscopy showed that the IUD had penetrated into rectosigmoid colon wall and that an arm of the IUD was embedded in the colon wall. We were able to remove the IUD easily by using colonoscopy. The endoscopic approach may be considered the first choice therapy for selected patients.

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  • Migrated Foreign Body Perforating the Colon: Scope for Colonoscopy
    Aparimita Das, Tarun S Joseph, Gangireddy Siva Sankar Reddy, Amrit Pipara, Sumit Mukhopadhyay
    Cureus.2025;[Epub]     CrossRef
  • Retroperitoneal Displacement of an Intrauterine Device (IUD): A Case Report
    Godwin Silas Macheku, Fidelis Clarence Jungulu, Ezekiel Kalibugwe Kiyogoma, Kheri Kagya, Salehe Mrutu, Michael Johnson Mahande
    International Journal of Innovative Science and Research Technology.2025; : 713.     CrossRef
  • Rectal Foreign Body Shaped Like an Endoscopic Clip: Migrated Intrauterine Devices to the Rectum
    Xinyu Xie, BoYuan, Chunmei Li, Lina Cao
    Digestive Diseases and Sciences.2025; 70(9): 2899.     CrossRef
  • Endoscopic Removal of Intrauterine Contraceptive Device From the Descending Colon: A Case Report
    Muhammad Shabbir, Mishal A Aljohani, Abdurahman Alfaiz, Msab Aldakheel, Zeeshan Ali
    Cureus.2024;[Epub]     CrossRef
  • Colonoscopic removal of an intrauterine device with rectal perforation: A case report
    Lingrun Ye, Yuanyuan Zhu, Fanglai Zhu
    Medicine.2024; 103(28): e38872.     CrossRef
  • Is It a “Colon Perforation”? A Case Report and Review of the Literature
    Shuangshuang Lu, Xinyu Yao, Jun Shi, Jian Huang, Shaohua Zhuang, Junfang Ma, Yan Liu, Wei Zhang, Lifei Yu, Ping Zhu, Qiuwei Zhu, Ruxia Shi, Hong Zheng, Dong Shao, Yuyan Pan, Shizhen Bao, Li Qin, Lijie Huang, Wenjia Liu, Jin Huang
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  • Endoscopic removal of an intrauterine device from the lumen of the sigmoid colon
    V. V. Bereshchenko, D. V. Lazarevich, N. N. Goncharov, P. V. Khodanovich
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  • Incomplete Removal of an Intrauterine Device Perforating the Sigmoid Colon
    Junseak Lee, Jung Hwan Oh, Jinsu Kim, Chul-Hyun Lim, Sung Hoon Jung
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  • Chronic nodules of sigmoid perforation caused by incarcerated intrauterine contraception device
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Rhabdomyolysis Following Colonoscopy: A Case Report
Jin Yong Jeong, Kap Tae Kim, Mi Jin Kim, Yea Jeong Kim
Ann Coloproctol. 2018;34(1):52-55.   Published online February 28, 2018
DOI: https://doi.org/10.3393/ac.2018.34.1.52
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AbstractAbstract PDF

We experienced a case of 1 patient who died from rhabdomyolysis-related complications after colonoscopy. A 60-year-old man had undergone an ‘uncomplicated’ colonoscopic polypectomy. Approximately 10 hours following this procedure, the patient complained of increasing left abdominal pain. His computed tomography image showed free gas, but his operative findings revealed no macroscopic perforation or abscess formation. Eight hours after the operation, the patient presented with myoglobulinuria, and we diagnosed the condition to be rhabdomyolysis. Based on this case, we recommend that rhabdomyolysis be added to the list of complications following a colonoscopic procedure. Moreover, for prevention and early treatment, endoscopists should be attentive to the risk factors and signs/symptoms of rhabdomyolysis.

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  • Rhabdomyolysis following colorectal endoscopic submucosal dissection: A case report
    Ying Chen, Wenxuan Zhang, Junqiang Cai, Min Zhong
    Clinical Case Reports.2024;[Epub]     CrossRef
Original Articles
Management Outcomes of Colonoscopic Perforations Are Affected by the General Condition of the Patients
Jae Ho Park, Kyung Jong Kim
Ann Coloproctol. 2018;34(1):16-22.   Published online February 28, 2018
DOI: https://doi.org/10.3393/ac.2018.34.1.16
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  • 1 Web of Science
  • 1 Citations
AbstractAbstract PDF
Purpose

The management of a colonoscopic perforation (CP) varies from conservative to surgical. The objective of this study was to evaluate the outcomes between surgical and conservative treatment of patients with a CP.

Methods

From 2003 to 2016, the medical records of patients with CP were retrospectively reviewed. Patients were divided into 2 groups depending on whether they initially received conservative or surgical treatment.

Results

During the study period, a total of 48 patients with a CP were treated. Among them, 5 patients had underlying colorectal cancer and underwent emergency radical cancer surgery; these patients were excluded. The mean age of the remaining 43 patients was 64.5 years old, and the most common perforation site was the sigmoid colon (15 patients). The initial conservative care group included 16 patients, and the surgery group included 27 patients. In the conservative group, 5 patients required conversion to surgery (failure rate: 5 of 16 [31.3%]). Of the surgery group, laparoscopic surgery was performed on 19 patients and open surgery on 8 patients, including 2 conversion cases. Major postoperative complications developed in 11 patients (34.4%), and postoperative mortality developed in 4 patients (12.5%). The only predictor for poor prognosis after surgery was a high American Society of Anesthesiologists physical status classification.

Conclusion

In this study, conservative treatment for patients with a CP had a relatively high failure rate. Furthermore, surgical treatment showed significant rates of complications and mortality, which depended on the general status of the patients.

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  • Multicenter retrospective evaluation of ileocecocolic perforations associated with diagnostic lower gastrointestinal endoscopy in dogs and cats
    Vanessa L. Woolhead, Jacqueline C. Whittemore, Sarah A. Stewart
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Clinical Significance of Preoperative Virtual Colonoscopy for Evaluation of the Proximal Colon in Patient With Obstructive Colorectal Cancer
Jae-Hyuk Heo, Chun-Geun Ryu, Eun-Joo Jung, Jin-Hee Paik, Dae-Yong Hwang
Ann Coloproctol. 2017;33(4):130-133.   Published online August 31, 2017
DOI: https://doi.org/10.3393/ac.2017.33.4.130
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  • 5 Citations
AbstractAbstract PDF
Purpose

Virtual colonoscopy is the most recently developed tool for detecting colorectal cancers and polyps, but its effectiveness is limited. In our study, we compared the result of preoperative virtual colonoscopy to result of preoperative and postoperative colonoscopy. We evaluated also the accuracy of preoperative virtual colonoscopy in patients who had obstructive colorectal cancer that did not allow passage of a colonoscope.

Methods

A total of 164 patients who had undergone preoperative virtual colonoscopy and curative surgery after the diagnosis of a colorectal adenocarcinoma between November 2008 and August 2013 were pooled. We compared the result of conventional colonoscopy with that of virtual colonoscopy in the nonobstructive group and the results of preoperative virtual colonoscopy with that of postoperative colonoscopy performed at 6 months after surgery in the obstructive group.

Results

Of the 164 patients, 108 were male and 56 were female patients. The mean age was 62.7 years. The average sensitivity, specificity, and accuracy of virtual colonoscopy for all patients were 31.0%, 67.2%, and 43.8%, respectively. In the nonobstructive group, the average sensitivity, specificity, and accuracy were 36.6%, 66.2%, and 48.0%, respectively, whereas in the obstructive group, they were 2%, 72.4%, and 25.4%. Synchronous cancer was detected via virtual colonoscopy in 4 of the 164 patients.

Conclusion

Virtual colonoscopy may not be an effective method for the detection of proximal colon polyps, but it can be helpful in determining the therapeutic plan when its results are correlated with the results of other studies.

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Correlation Between Bowel Preparation and the Adenoma Detection Rate in Screening Colonoscopy
Jung Hun Park, Sang Jin Kim, Jong Hee Hyun, Kyung Su Han, Byung Chang Kim, Chang Won Hong, Sang-Jeon Lee, Dae Kyung Sohn
Ann Coloproctol. 2017;33(3):93-98.   Published online June 30, 2017
DOI: https://doi.org/10.3393/ac.2017.33.3.93
  • 14,142 View
  • 110 Download
  • 25 Web of Science
  • 28 Citations
AbstractAbstract PDF
Purpose

The adenoma detection rate is commonly used as a measure of the quality of colonoscopy. This study assessed both the association between the adenoma detection rate and the quality of bowel preparation and the risk factors associated with the adenoma detection rate in screening colonoscopy.

Methods

This retrospective analysis involved 1,079 individuals who underwent screening colonoscopy at the National Cancer Center between December 2012 and April 2014. Bowel preparation was classified by using the Aronchick scale. Individuals with inadequate bowel preparations (n = 47, 4.4%) were excluded because additional bowel preparation was needed. The results of 1,032 colonoscopies were included in the analysis.

Results

The subjects' mean age was 53.1 years, and 657 subjects (63.7%) were men. The mean cecal intubation time was 6.7 minutes, and the mean withdrawal time was 8.7 minutes. The adenoma and polyp detection rates were 28.1% and 41.8%, respectively. The polyp, adenoma, and advanced adenoma detection rates did not correlate with the quality of bowel preparation. The multivariate analysis showed age ≥ 60 years (hazard ratio [HR], 1.42; 95% confidence interval [CI], 1.02–1.97; P = 0.040), body mass index ≥ 25 kg/m2 (HR, 1.56; 95% CI, 1.17–2.08; P = 0.002) and current smoking (HR, 1.44; 95% CI, 1.01–2.06; P = 0.014) to be independent risk factors for adenoma detection.

Conclusion

The adenoma detection rate was unrelated to the quality of bowel preparation for screening colonoscopy. Older age, obesity, and smoking were independent risk factors for adenoma detection.

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    Maryan Cavicchi, Gaëlle Tharsis, Pascal Burtin, Philippe Cattan, Franck Venezia, Gilles Tordjman, Agnès Gillet, Joëlle Samama, Karine Nahon-Uzan, David Karsenti
    Digestive Diseases and Sciences.2019; 64(12): 3579.     CrossRef
  • Impact of diet restriction on bowel preparation for colonoscopy
    Seung-Joo Nam, Young Jin Kim, Bora Keum, Jae Min Lee, Seung Han Kim, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim
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  • Limitation and Value of Using the Adenoma Detection Rate for Colonoscopy Quality Assurance
    Jun Hur, Moo-Jun Baek
    Annals of Coloproctology.2017; 33(3): 81.     CrossRef
Case Reports
Urinary Bladder Injury During Colonoscopy Without Colon Perforation
Jung Wook Suh, Jun Won Min, Hwan Namgung, Dong-Guk Park
Ann Coloproctol. 2017;33(3):112-114.   Published online June 30, 2017
DOI: https://doi.org/10.3393/ac.2017.33.3.112
  • 8,338 View
  • 66 Download
  • 3 Web of Science
  • 3 Citations
AbstractAbstract PDF

We report a case of urinary bladder perforation during colonoscopy. A 67-year-old female, who had undergone a transabdominal hysterectomy for uterine myomas 15 years ago, visited the emergency department with complaint of abdominal pain after a screening colonoscopy. Laparoscopic examination revealed severe adhesion between the sigmoid colon and the urinary bladder. The urinary bladder wall was weakened, and several perforation sites were found. The surgery was converted to a laparotomy. After a thorough examination, we performed primary repair for the perforation sites, followed by an omentopexy.

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  • Trauma to the solid abdominal organs: The missed dark box of colonoscopy
    Mohamed H Emara, Usama Mazid, Yasmine A Elshaer, Mahmoud A Elkerdawy, Dilaver Farooq Malik, Aya M Mahros
    World Journal of Gastroenterology.2024; 30(7): 624.     CrossRef
  • Mesenteric laceration of the sigmoid colon after colonoscopy: A rare complication
    Min Wu, Yonghua Lin, Zhichao Chen, Jianfeng Wei
    Asian Journal of Surgery.2023; 46(11): 5391.     CrossRef
  • Massive retroperitoneal hematoma following colonoscopy
    Reo Ohtsuka, Hodaka Amano, Kei Niida, Takeaki Yoshino, Michiyo Owari, Ryotaro Takano, Yuichi Akama, Yohei Watanabe, Toshiyasu Iwao
    Medicine.2018; 97(31): e11723.     CrossRef
Mucosa-Associated Lymphoid-Tissue Lymphoma of the Cecum and Rectum: A Case Report
Myung Jin Nam, Byung Chang Kim, Sung Chan Park, Chang Won Hong, Kyung Su Han, Dae Kyung Sohn, Weon Seo Park, Hee Jin Chang, Jae Hwan Oh
Ann Coloproctol. 2017;33(1):35-38.   Published online February 28, 2017
DOI: https://doi.org/10.3393/ac.2017.33.1.35
  • 7,036 View
  • 94 Download
  • 4 Web of Science
  • 5 Citations
AbstractAbstract PDF

A colonic mucosa-associated lymphoid-tissue (MALT) lymphoma is relatively rare compared to lymphomas of the stomach or small intestine. We present a case of a MALT lymphoma in the cecum and rectum found during screening colonoscopy. A 54-year-old female, who had undergone right-breast-conserving surgery with axillary dissection due to an invasive ductal carcinoma and a left-breast excisional biopsy due to microcalcification following adjuvant chemoradiation therapy 3 years earlier, was found to have 3-mm-sized smooth elevated lesions in both the cecum and rectum. No pathologic lesion or lymphadenopathy was found at any other site, but chronic gastritis negative for Helicobacter pylori infection was found. The polyps were removed by using an endoscopic biopsy and revealed an extra nodal marginal zone B-cell MALT lymphoma, showing positive for CD3 and CD20 by immunohistochemical staining. The patient underwent close observation without any additional treatment and has shown no evidence of recurrence as of her last visit.

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  • Mucosal healing of ileum-mucosa-associated lymphoid tissue lymphoma after Helicobacter pylori eradication: a case report and literature review
    Yihan Huang, Jiaying Jiang, Kui Jiang, Bangmao Wang, Tianyu Liu, Hailong Cao
    Frontiers in Oncology.2025;[Epub]     CrossRef
  • Changes in Incidence and Survival by Decade of Patients With Primary Colorectal Lymphoma: A SEER Analysis
    Qingguo Li, Shaobo Mo, Weixing Dai, Yaqi Li, Ye Xu, Xinxiang Li, Guoxiang Cai, Sanjun Cai
    Frontiers in Public Health.2020;[Epub]     CrossRef
  • Successful Endoscopic Resection of Mucosa-Associated Lymphoid Tissue Lymphoma of the Colon
    Brian L. Schwartz, Robert C. Lowe
    ACG Case Reports Journal.2019; 6(10): e00228.     CrossRef
  • Synchronous MALT lymphoma of the colon and stomach and regression after eradication ofStrongyloides stercoralisandHelicobacter pylori
    Kevin Singh, Soren Gandhi, Behzad Doratotaj
    BMJ Case Reports.2018; 2018: bcr-2018-224795.     CrossRef
  • Mucosal leishmaniasis mimicking T-cell lymphoma in a patient receiving monoclonal antibody against TNFα
    Antonio Carlos Nicodemo, Daniel Fernandes Duailibi, Diego Feriani, Maria Irma Seixas Duarte, Valdir Sabbaga Amato, Zvi Bentwich
    PLOS Neglected Tropical Diseases.2017; 11(9): e0005807.     CrossRef
Pneumoretroperitoneum, Pneumomediastinum, Subcutaneous Emphysema After a Rectal Endoscopic Mucosal Resection
Hee Cheul Jung, Hyun Jin Kim, Sung Bok Ji, Jun Hyeong Cho, Ji Hye Kwak, Chang Min Lee, Wan Soo Kim, Jin Ju Kim, Jae Min Lee, Sang Su Lee
Ann Coloproctol. 2016;32(6):234-238.   Published online December 31, 2016
DOI: https://doi.org/10.3393/ac.2016.32.6.234
  • 7,151 View
  • 73 Download
  • 2 Web of Science
  • 4 Citations
AbstractAbstract PDF

An endoscopic mucosal resection (EMR) is an effective and safe therapeutic technique for treating a patient with a laterally-spreading tumor (LST). Colonoscopic-procedure-related complications are noted to be about 2.8% worldwide, and a perforation is the most common. Most colon perforations cause pneumoperitoneum. However, a perforation within the retroperitoneal portion of the colon (rectum and some of sigmoid colon) may cause an extraperitoneal perforation, and the leaking free air may induce pneumoretroperitoneum, pneumomediastinum, and subcutaneous emphysema, depending on the amount of discharged air. Herein, we present the case of a patient with an extraperitoneal colon microperforation which manifested as pneumoretroperitoneum, pneumomediastinum, and subcutaneous emphysema after an EMR for a sigmoid LST, which was successfully treated with medical treatment and endoscopic clipping.

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  • Asymptomatic sigmoid diverticulum perforation-induced subcutaneous, mediastinal, and retroperitoneal emphysema: A case report and literature review
    Daichi Setoguchi, Naoki Iwanaga, Kotaro Nema, Tomoya Hagiwara, Kotaro Hayashida, Koki Yamashita, Tatsuro Hirayama, Masataka Yoshida, Kazuaki Takeda, Shotaro Ide, Masato Tashiro, Takahiro Takazono, Masachika Kitajima, Noriho Sakamoto, Koichi Izumikawa, Kat
    Respiratory Medicine Case Reports.2025; 56: 102229.     CrossRef
  • Pneumoretroperitoneum mimicking rectal perforation, secondary to vaginal wall laceration following sexual intercourse in a 19-year-old woman in Korea: a case report
    Sung Pil Choo, Ki Eun Seon, Jae Cheol Jung, Kyeong Deok Kim, Moon Suk Choi
    Journal of Acute Care Surgery.2025; 15(2): 86.     CrossRef
  • The Close Relationship between Large Bowel and Heart: When a Colonic Perforation Mimics an Acute Myocardial Infarction
    Maria Francesca Secchi, Carlo Torre, Giovanni Dui, Francesco Virdis, Mauro Podda
    Case Reports in Surgery.2018; 2018: 1.     CrossRef
  • Pneumoretroperitoneum, Pneumomediastinum, Pneumothorax, and Subcutaneous Emphysema after Diagnostic Colonoscopy
    Hee Sung Lee, Hwan Hee Park, Ju Seok Kim, Sun Hyung Kang, Hee Seok Moon, Jae Kyu Sung, Byung Seok Lee, Hyun Yong Jeong
    The Korean Journal of Gastroenterology.2017; 70(3): 145.     CrossRef
Original Articles
The Outcomes of Management for Colonoscopic Perforation: A 12-Year Experience at a Single Institute
Jung Yun Park, Pyong Wha Choi, Sung Min Jung, Nam-Hoon Kim
Ann Coloproctol. 2016;32(5):175-183.   Published online October 31, 2016
DOI: https://doi.org/10.3393/ac.2016.32.5.175
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  • 17 Citations
AbstractAbstract PDF
Purpose

Optimal management of colonoscopic perforation (CP) is controversial because early diagnosis and prompt management play critical roles in morbidity and mortality. Herein, we evaluate the outcomes and clinical characteristics of patients with CP according to treatment modality to help establish guidelines for managing CP.

Methods

Our retrospective analysis included 40 CP patients from January 1, 2003, to December 31, 2014. Patients with CP were categorized into 2 groups according to therapeutic modality: operation (surgery) and nonoperation (endo-luminal clip application or conservative treatment) groups.

Results

The postoperative morbidity rate was 40%, and no mortalities were noted. The incidence of abdominal pain and tenderness in patients who received only conservative management was significantly lower than in those who underwent surgery (P < 0.001 and P = 0.004, respectively). Patients tended to undergo surgery more often for diagnosis times longer than 24 hours and for diagnostic CPs. The mean hospital stays for the operation and nonoperation groups were 14.6 ± 7.77 and 5.9 ± 1.62 days, respectively (P < 0.001). Compared to the operation group, the nonoperation group began intake of liquid diets significantly earlier after perforation (3.8 ± 1.32 days vs. 5.6 ± 1.25 days, P < 0.001) and used antibiotics for a shorter duration (4.7 ± 1.29 days vs. 8.7 ± 2.23 days, P < 0.001).

Conclusion

The time of diagnosis and the injury mechanism may be useful indications for conservative management. Nonoperative management, such as endo-luminal clip application, might be beneficial, when feasible, for the treatment of patients with CP.

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    Aastha Bharwad, Eric Yoon, Brooks D. Cash
    Expert Review of Gastroenterology & Hepatology.2026; 20(2): 107.     CrossRef
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    Seung Hun Lee, Jae Hyun Kim, Yeajin Moon, Song Hyun Lee, Seung Hyun Lee, Byung Kwon Ahn, Seun Ja Park
    Digestive Diseases and Sciences.2026;[Epub]     CrossRef
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    Ik Hyun Jo, Hyun Gun Kim, Young-Seok Cho, Hyun Jung Lee, Eun Ran Kim, Yoo Jin Lee, Sung Wook Hwang, Kyeong-Ok Kim, Jun Lee, Hyuk Soon Choi, Yunho Jung, Chang Mo Moon
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    Sneh Sonaiya, Dushyant S. Dahiya, Raj Patel, Shahryar Khan, Charmy Parikh, Karan Yagnik, Chun-Han Lo, Kyaw Min Tun, Pranav D. Patel, Bradley Confer, Harshit S. Khara, Sumant Inamdar, Babu P. Mohan
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    Shriya S. Srinivasan, Sabrina Liu, Ryo Hotta, Sukhada Bhave, Amro Alshareef, Binbin Ying, George Selsing, Johannes Kuosmanen, Keiko Ishida, Joshua Jenkins, Wiam Abdalla Mohammed Madani, Alison Hayward, Niora Fabian, Allan M. Goldstein, Giovanni Traverso
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    Nihat Gülaydın, Raim İliaz, Atakan Özkan, A Hande Gökçe, Hanifi Önalan, Berrin Önalan, Aziz Arı
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    Vanessa L. Woolhead, Jacqueline C. Whittemore, Sarah A. Stewart
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    Liang Li, Bing Xue, Chunxia Yang, Zhongbo Han, Hongqiang Xie, Meng Wang
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  • ESTUDO RETROSPECTIVO DA PREVALÊNCIA DE PERFURAÇÕES GASTROINTESTINAIS EM PACIENTES SUBMETIDOS A COLONOSCOPIAS NO HOSPITAL REGIONAL HANS DIETER SCHMIDT
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    Jae Ho Park, Kyung Jong Kim
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    Nicola de’Angelis, Salomone Di Saverio, Osvaldo Chiara, Massimo Sartelli, Aleix Martínez-Pérez, Franca Patrizi, Dieter G. Weber, Luca Ansaloni, Walter Biffl, Offir Ben-Ishay, Miklosh Bala, Francesco Brunetti, Federica Gaiani, Solafah Abdalla, Aurelien Ami
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Detection of Polyps After Resection of Colorectal Cancer
Jin-Hee Paik, Eun-Joo Jung, Chun-Geun Ryu, Dae-Yong Hwang
Ann Coloproctol. 2015;31(5):182-186.   Published online October 31, 2015
DOI: https://doi.org/10.3393/ac.2015.31.5.182
  • 7,255 View
  • 39 Download
  • 6 Web of Science
  • 8 Citations
AbstractAbstract PDF
Purpose

Because colonoscopy after colorectal cancer surgery is important for detecting synchronous or metachronous colorectal neoplasms, we designed this study to investigate, by using postoperative colonoscopy, the miss rate for and the location of polyps remaining after colorectal cancer surgery.

Methods

In a prospectively-collected patient database, 264 patients were shown to have undergone a colorectal cancer resection between May 2012 and June 2013. Of these, 116 who had received a complete colonoscopy preoperatively and postoperatively were included in this study.

Results

Of these 116 patients, 68 were males and 48 were females; their mean age was 63 years. The mean time after surgery at which postoperative colonoscopy was performed was 7.1 months (range, 3-15 months). On postoperative colonoscopy, a total of 125 polyps were detected. Of these, there were no cancerous lesions; 46 (36.8%) were neoplastic polyps, and 79 (63.2%) were nonneoplastic polyps. Fifty-nine polyps (47.2%) and 15 polyps (12%) were located in the proximal and the distal parts of the anastomosis, respectively. The miss rates for the total numbers of polyps and of neoplastic polyps remaining after surgery were 37.4% and 24.2%, respectively. The incidence of neoplastic polyps increased during postoperative colonoscopy as it had during preoperative colonoscopy (r = 0.164, P = 0.048).

Conclusion

Colonoscopic surveillance after colorectal cancer resection results in the detection of pathologic polyps in one-fourth of the cases. During postoperative colonoscopy, careful examination of the proximal colon is necessary. Patients in whom multiple neoplastic polyps had been detected during preoperative colonoscopy require careful and thorough follow-up.

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    Harris Bernstein, Carol Bernstein
    Experimental Biology and Medicine.2023; 248(1): 79.     CrossRef
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    Jun-Quan Shen
    World Chinese Journal of Digestology.2020; 28(22): 1162.     CrossRef
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    Jihye Park, Jae Hyun Kim, Yehyun Park, Soo Jung Park, Jae Hee Cheon, Won Ho Kim, Ji Soo Park, Justin Y. Jeon, Tae Il Kim, John Green
    PLOS ONE.2018; 13(3): e0193753.     CrossRef
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    Seiji Kimura, Masanori Tanaka, Shinsaku Fukuda
    Nippon Daicho Komonbyo Gakkai Zasshi.2017; 70(3): 149.     CrossRef
  • Kolon polipleri sayı ve büyüklüğü malignite göstergesi olabilir mi?
    Abdurahman ŞAHİN, Nurettin TUNÇ, Salih KILIÇ, Gökhan ARTAŞ, Ulvi DEMİREL, Orhan K. POYRAZOĞLU, İbrahim H. BAHÇECİOĞLU, Mehmet YALNIZ
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    Byung Chun Kim
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Distribution of the Colonoscopic Adenoma Detection Rate According to Age: Is Recommending Colonoscopy Screening for Koreans Over the Age of 50 Safe?
Taeseok Bae, Yunhyung Ha, Changkyun Kim, Jihyun Lee, Kwangil Ha, Sanghyun Shin, Youngcheol Lee, Yoonsik Kang
Ann Coloproctol. 2015;31(2):46-51.   Published online April 30, 2015
DOI: https://doi.org/10.3393/ac.2015.31.2.46
  • 7,450 View
  • 54 Download
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  • 15 Citations
AbstractAbstract PDF
Purpose

This study was conducted to determine the distributions of the polyp detection rate (PDR) and the adenoma detection rate (ADR) according to age by analyzing the polypectomy results.

Methods

A total of 10,098 patients who underwent a colonoscopy in 2013 were included in this study. Chi-square and logistic regression statistical analyses were performed using SPSS ver. 19.

Results

The mean age of the patients was 52.7 years old (median, 54 ± 12.52 years; range, 14 to 92 years). A total of 6,459 adenomatous polyps (61.7%) from a total of 10,462 polyps were eliminated. The PDR was 50.9% (5,136/10,098), and the. ADR was 35.4% (3,579/10,098). The male-to-female ratio was 51.3%:48.7%, with a male-to-female ADR ratio of 42.8% : 27.7% (P < 0.001). In the age distribution, the values of the ADR were 0% for patients in their 10's, 6.3% for those in their 20's, 14.0% for those in their 30's, 28.7% for those in their 40's, 38.4% for those in their 50's, 46.2% for those in their 60's, 55.8% for those in their 70's, 56.1% for those in their 80's, and 33.3% for those in their 90's. In males, the values of the ADR were 0%, 9.1%, 17.1%, 37.8%, 48.2%, 53.6%, 61.7%, 59.1%, and 33.3% for the same age distribution, and a steep increase was found between patients in their 30's and patients in their 40's. Significant (P < 0.001) factors influencing the ADR included sex, previous colonoscopy experience, polypectomy method, and age of more than 40 years.

Conclusion

In considering the adenoma carcinoma sequence, 28.7% of people, especially 37.8% of males in their 40's showed adenomatous polyps. Whether an earlier first-time colonoscopy will have better results in preventing colorectal cancer should be investigated and discussed.

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    Xiaoyan He, Xiangyin Lv, Binbin Zhang, Xiaoxuan Ying, Chiyu Hu, Xiaoying Zhou, Jianwen Hu
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Case Report
Acute Hyponatremia With Seizure and Mental Change After Oral Sodium Picosulfate/Magnesium Citrate Bowel Preparation
Young Sun Cho, Kyung Min Nam, Jang Ho Park, Sang Hwan Byun, Jin Suck Ryu, Hyun Ju Kim
Ann Coloproctol. 2014;30(6):290-293.   Published online December 31, 2014
DOI: https://doi.org/10.3393/ac.2014.30.6.290
  • 8,003 View
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  • 13 Citations
AbstractAbstract PDF

Sodium picosulfate/magnesium citrate (Picolight Powder), which is used as a bowel preparation for the colon and the rectum, can cause a severe electrolyte imbalance like hyponatremia. When hyponatremia gets severe or occurs rapidly, it can lead to death due to associated complications. We have experienced a case of hyponatremia associated with seizure and loss of consciousness in a 76-year-old woman, who took sodium picosulfate/magnesium citrate as a bowel preparation for colonoscopy. She was taking thiazide and synthroid for the treatment of hypertension and hypothyroidism, respectively, and she had other underlying medical conditions such as a history of seizure and dementia. Following the diagnosis of hyponatremia, we used an intravenous injection of 3% NaCl to normalize the sodium level in her serum, and her associated symptoms soon disappeared.

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Original Articles
Prompt Management Is Most Important for Colonic Perforation After Colonoscopy
Hyun-Ho Kim, Bong-Hyeon Kye, Hyung-Jin Kim, Hyeon-Min Cho
Ann Coloproctol. 2014;30(5):228-231.   Published online October 28, 2014
DOI: https://doi.org/10.3393/ac.2014.30.5.228
  • 11,322 View
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  • 19 Web of Science
  • 16 Citations
AbstractAbstract PDF
Purpose

The incidence of complications after colonoscopy is very low. The complications after colonoscopy that are of clinical concern are bleeding and perforation. The present study was conducted to determine the clinical outcomes and the risk factors of a colostomy or a colectomy after colonoscopic colon perforation.

Methods

From March 2009 to December 2012, the records of all patients who were treated for colorectal perforation after colonoscopy were reviewed retrospectively. The following parameters were evaluated: age, sex, purpose of colonoscopy, management of the colonic perforation, and interval from colonoscopy to the diagnosis of a colonic perforation. A retrospective analysis was performed to determine the risk factors associated with major surgery for the treatment of a colon perforation after colonoscopy.

Results

A total 27 patients were included in the present study. The mean age was 62 years, and 16 were males. The purpose of colonoscopy was diagnostic in 18 patients. The most common perforation site was the sigmoid colon. Colonic perforation was diagnosed during colonoscopy in 14 patients, just after colonoscopy in 5 patients, and 24 hours or more after colonoscopy in 8 patients. For the treatment of colonic perforation, endoscopic clipping was performed in 3 patients, primary closure in 15 patients, colon resection in 2 patients, Hartmann's procedures in 4 patients, and diverting colostomy in 3 patients. If the diagnosis of perforation after colonoscopy was delayed for more than 24 hours, the need for major treatment was increased significantly.

Conclusion

Although a colonic perforation after colonoscopy is rare, if the morbidity and the mortality associated with the colonic perforation are to be reduced, prompt diagnosis and management are very important.

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    Seung Bum Lee
    Clinical Endoscopy.2026; 59(1): 33.     CrossRef
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Effectiveness of Sodium Picosulfate/Magnesium Citrate (PICO) for Colonoscopy Preparation
Ki Hwan Song, Wu Seok Suh, Jin Sik Jeong, Dong Sik Kim, Sang Woo Kim, Dong Min Kwak, Jong Seong Hwang, Hyun Jin Kim, Man Woo Park, Min Chul Shim, Ja-Il Koo, Jae Hwang Kim, Dae Ho Shon
Ann Coloproctol. 2014;30(5):222-227.   Published online October 28, 2014
DOI: https://doi.org/10.3393/ac.2014.30.5.222
  • 9,668 View
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  • 10 Web of Science
  • 8 Citations
AbstractAbstract PDF
Purpose

Bowel preparation with sodium phosphate was recently prohibited by the U.S. Food and Drug Administration. Polyethylene glycol (PEG) is safe and effective; however, it is difficult to drink. To identify an easy bowel preparation method for colonoscopy, we evaluated three different bowel preparation regimens regarding their efficacy and patient satisfaction.

Methods

In this randomized, comparative study, 892 patients who visited a secondary referral hospital for a colonoscopy between November 2012 and February 2013 were enrolled. Three regimens were evaluated: three packets of sodium picosulfate/magnesium citrate (PICO, group A), two packets of PICO with 1 L of PEG (PICO + PEG 1 L, group B), and two packets of PICO with 2 L of PEG (PICO + PEG 2 L, group C). A questionnaire survey regarding the patients' preference for the bowel preparation regimen and satisfaction was conducted before the colonoscopies. The quality of bowel cleansing was scored by the colonoscopists who used the Aronchick scoring scale and the Ottawa scale.

Results

The patients' satisfaction rate regarding the regimens were 72% in group A, 64% in group B, and 45.9% in group C. Nausea and abdominal bloating caused by the regimens were more frequent in group C than in group A or group B (P < 0.01). Group C showed the lowest preference rate compared to the other groups (P < 0.01). Group C showed better right colon cleansing efficacy than group A or group B.

Conclusion

Group A exhibited a better result than group B or group C in patient satisfaction and preference. In the cleansing quality, no difference was noted between groups A and C.

Citations

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Only the Size of Resected Polyps Is an Independent Risk Factor for Delayed Postpolypectomy Hemorrhage: A 10-Year Single-Center Case-Control Study
Hee Seok Moon, Sun Wook Park, Dong Hwan Kim, Sun Hyung Kang, Jae Kyu Sung, Hyun Yong Jeong
Ann Coloproctol. 2014;30(4):182-185.   Published online August 26, 2014
DOI: https://doi.org/10.3393/ac.2014.30.4.182
  • 6,522 View
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  • 24 Web of Science
  • 23 Citations
AbstractAbstract PDF
Purpose

A colonoscopic polypectomy is an important procedure for preventing colorectal cancer, but it is not free from complications. Delayed hemorrhage after a colonoscopic polypectomy is one infrequent, but serious, complication. The aim of this study was to identify the risk factors for delayed hemorrhage after a colonoscopic polypectomy.

Methods

This was a retrospective case-control study based on medical records from a single gastroenterology center. The records of 7,217 patients who underwent a colonoscopic polypectomy between March 2002 and March 2012 were reviewed, and 92 patients and 276 controls were selected. Data collected included comorbidity, use of antiplatelet agents, size and number of resected polyps, histology and gross morphology of resected polyps, resection method, and use of prophylactic hemostasis.

Results

The average time between the procedure and bleeding was 2.71 ± 1.55 days. Univariate and multivariate analyses revealed that the size of the polyps was the only and most important predictor of delayed hemorrhage after a colonoscopic polypectomy (odds ratio, 2.06; 95% confidence interval, 1.12-1.27; P = 0.03).

Conclusion

The size of resected polyps was the only independent risk factor for delayed bleeding after a colonoscopic polypectomy. The size of a polyp, as revealed by the colonoscopic procedure, may aid in making decisions, such as the decision to conduct a prophylactic hemostatic procedure.

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A Survey of Colonoscopic Surveillance After Polypectomy
Dae Kyung Sohn
Ann Coloproctol. 2014;30(2):88-92.   Published online April 25, 2014
DOI: https://doi.org/10.3393/ac.2014.30.2.88
  • 6,813 View
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  • 9 Web of Science
  • 7 Citations
AbstractAbstract PDF
Purpose

Several guidelines have been proposed for surveillance colonoscopy after polypectomy. However, some discrepancies still exist between the guidelines and clinical practice. This study was conducted to identify Korean doctors' recommendations for the colonoscopic surveillance interval after polypectomy.

Methods

A survey of the attendees at the symposium of the 64th Annual Congress of the Korean Surgical Society was conducted. When the prepared clinical scenarios were given, attendees answered using a wireless radio-frequency audience response system. All responders' results were automatically counted immediately. Frequencies of different answers to each question were calculated, and our results were compared with those of previous surveys performed using the same questionnaire in the United States or Japan.

Results

The number of responder varied from 38 to 41. About 50% of valid responders selected 'follow-up in 3 years' for low-risk lesions, such as a 6-mm hyperplastic polyp, a 6-mm tubular adenoma, or two 6-mm tubular adenomas. Responders most-commonly selected 'follow-up in 1 year' for high-risk lesions, such as a 12-mm tubular adenoma with high grade dysplasia or a 12-mm tubulovillous adenoma. The majority of Korean doctors recommend postpolypectomy colonoscopic surveillance more frequently than American physicians did.

Conclusion

A discrepancy between the guidelines and clinical practice for the surveillance after polypectomy still exists in Korea. A surveillance program that can be easily and widely applied in clinical practice needs to be established.

Citations

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  • Analysis of adenoma detection rate of colonoscopy among trainees
    Young Min Song, Kyung Su Han, Byung Chang Kim, Chang Won Hong, Bun Kim, Min Chul Kim, Myeong Jae Jin, Dae Kyung Sohn
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    Chang Kyo Oh, Satimai Aniwan, Panida Piyachaturawat, Zhiqin Wong, Thida Soe, Bayasgalan Luvsandagva, Quang Trung Tran, Achmad Fauzi, Jeong-Sik Byeon, Young-Seok Cho
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    Joseph C. Anderson, John A. Baron, Dennis J. Ahnen, Elizabeth L. Barry, Roberd M. Bostick, Carol A. Burke, Robert S. Bresalier, Timothy R. Church, Bernard F. Cole, Marcia Cruz-Correa, Adam S. Kim, Leila A. Mott, Robert S. Sandler, Douglas J. Robertson
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    Seung-Hwa Lee, Ji-Yeon Hong, Jung-Un Lee, Dong Ryul Lee
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Importance of Early Follow-up Colonoscopy in Patients at High Risk for Colorectal Polyps
Sung Taek Jung, Dae Kyung Sohn, Chang Won Hong, Byung Chang Kim, Ji Won Park, Kyung Su Han, Hee Jin Chang, Hyo Sung Choi, Jae Hwan Oh
Ann Coloproctol. 2013;29(6):243-247.   Published online December 31, 2013
DOI: https://doi.org/10.3393/ac.2013.29.6.243
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  • 5 Citations
AbstractAbstract PDF
Purpose

Minimizing the polyp miss rate during colonoscopy is important for patients at high risk for colorectal polyps. We investigated the polyp miss rate and the factors associated with it in high-risk patients.

Methods

The medical records of 163 patients who underwent follow-up colonoscopy between January 2001 and April 2010, which was within 9 months after a polypectomy, because the index colonoscopy had shown multiple (more than 3) adenomas or advanced adenoma were retrospectively reviewed. Miss rates were calculated for all polyps, for neoplastic polyps and for advanced adenomas. Factors associated with the miss rates in these patients, such as the location, shape and size of the polyp, were analyzed.

Results

The miss rates for polyps, adenomas, adenomas <5 mm, adenomas ≥5 mm and advanced adenomas were 32.6%, 20.9%, 17.7%, 3.2%, and 0.9%, respectively. No carcinoma, except for one small carcinoid tumor, was missed. Flat shape and small size (<5 mm) were significantly associated with adenoma miss rate. The miss rate was significantly higher for flat-type advanced adenomas than for protruded-type advanced adenomas (27.7% vs 4.1%).

Conclusion

The polyp miss rate in patients at high risk for colorectal polyps was higher than expected. Efforts are needed to reduce miss rates and improve the quality of colonoscopy. Also, early follow-up colonoscopy is mandatory, especially in patients at high risk.

Citations

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  • Removal of GIT lesions and the role of impedance of the injection solution—an innovative approach to known methods
    Martina Lösle, K. E. Grund, B. Duckworth-Mothes
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Case Reports
Acute Cholecystitis After a Colonoscopy
Tae Ik Park, Sang Yong Lee, Jun Hee Lee, Min Cheol Kim, Bong Gap Kim, Dong Hyuk Cha
Ann Coloproctol. 2013;29(5):213-215.   Published online October 31, 2013
DOI: https://doi.org/10.3393/ac.2013.29.5.213
  • 4,719 View
  • 28 Download
  • 9 Citations
AbstractAbstract PDF

Acute cholecystitis after a colonoscopy is a rare event, and only eight documented cases are reported in the literature. A 35-year-old male underwent a screening colonoscopy. There was a 5-mm sessile polyp in the sigmoid colon, which was removed by using a hot snare polypectomy. Forty-eight hours after the colonoscopy, the patient visited our emergency department with epigastric pain and fever. Based on the clinical findings, laboratory data and radiologic imaging, our diagnosis was acute cholecystitis. Because no previous cases of this type have been reported to date in Korea, we publish the details of our patients who presented with a postcolonoscopy complication diagnosed as acute cholecystitis.

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    P. Ladrón Abia, A. Mínguez Sabater, M. García-Campos, F. Del Hoyo
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    P. Ladrón Abia, A. Mínguez Sabater, M. García-Campos, F. Del Hoyo
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    Danial H Shaikh, Kishore Kumar, Harish Patel, Shehriyar Mehershanhi, Jasbir Makker
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    Cheol Yun Jeong, Sung Hoon Jung
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Colon Cancer After Acute Diverticulitis Treatment
Kwang Hoon Oh, Koon Hee Han, Eun Jung Kim, Je Hoon Lee, Kyu Un Choi, Myung Sik Han, Jae Hong Ahn, Gab Jin Cheon
Ann Coloproctol. 2013;29(4):167-171.   Published online August 29, 2013
DOI: https://doi.org/10.3393/ac.2013.29.4.167
  • 15,767 View
  • 55 Download
  • 4 Citations
AbstractAbstract PDF

Diverticulitis is the most common clinical complication of diverticular disease, affecting 10-25% of the patients with diverticula. The prevalences of diverticulitis and colon cancer tend to increase with age and are higher in industrialized countries. Consequently, diverticulitis and colon cancer have been reported to have similar epidemiological characteristics. However, the relationship between these diseases remains controversial, as is the performance of routine colonoscopy after an episode of diverticulitis to exclude colon cancer. Recently, we experienced three cases of colon cancer after treating acute diverticulitis, based on which we suggest the importance of follow-up colonoscopy after acute diverticulitis.

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  • Mesenteric and Retroperitoneal Mucinous Cystic Neoplasms: A Nongynecologic Process Commonly Managed by Gynecologic Oncologists
    Judy Hayek, Jennifer Wolf, Alexandra Hamilton, Yong Mei Yin, Margaux J. Kanis, Seung-Yup Ku
    Case Reports in Obstetrics and Gynecology.2026;[Epub]     CrossRef
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    Liliane C. Meireles, Samuel R. Fernandes, Luis C. Ribeiro, José Velosa
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    Antonio Tursi
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    Geom Seog Seo, Suck Chei Choi
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Original Article
Incidence and Multiplicities of Adenomatous Polyps in TNM Stage I Colorectal Cancer in Korea
Young-Sang Hong, Eun-Joo Jung, Chun-Geun Ryu, Gang-Mi Kim, Su-Ran Kim, Sung-Noh Hong, Dae-Yong Hwang
J Korean Soc Coloproctol. 2012;28(4):213-218.   Published online August 31, 2012
DOI: https://doi.org/10.3393/jksc.2012.28.4.213
  • 5,041 View
  • 41 Download
  • 2 Citations
AbstractAbstract PDF
Purpose

In recent years, the incidence of early-stage colorectal cancer (CRC) has markedly increased in the population within the Republic of Korea. The aim of this study was to evaluate the clinicopathologic features of adenomatous polyps in TNM stage I CRC patients and in the general population.

Methods

Between March 2003 and September 2009, 168 patients with stage I CRC were enrolled in this study. In addition, the records of 4,315 members of the general population without CRC, as determined by colonoscopy during a health check-up, were reviewed.

Results

Of the 168 patients with stage I CRC, 68 (40.5%) had coexisting colorectal adenomatous polyps and of the 4,315 members of the general population, 1,112 (26.0%) had coexisting adenomatous polyps (P = 0.006). The prevalences of adenomatous polyp multiplicity in early CRC and in the general population were 32% and 15%, respectively (P = 0.023). Patients with coexisting adenomatous polyps had a higher frequency of tubulovillous or villous adenomas than members of the general population with polyps (7.5% vs. 2.0%, P = 0.037). Furthermore, a subgroup analysis showed that the occurrence (44% vs. 34%, P = 0.006) and the multiplicity (32% vs. 15%, P = 0.023) of adenomatous polyps were greater for T2 than T1 cancer.

Conclusion

The prevalence and the multiplicity of adenomatous polyps in TNM stage I CRC is higher than it is in the general population. The findings of this study suggest that depth of invasion of early stage CRC affects the prevalence and the number of adenomatous polyps in the remaining colon and rectum.

Citations

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  • Treatment of cancer in tubular villous colorectal adenomas
    O.I. Kit, Yu.A. Gevorkyan, N.V. Soldatkina, V.M. Legostaev, E.N. Kolesnikov, O.K. Bondarenko, E.N. Mironenko, D.S. Petrov
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    Jin-Hee Paik, Chun-Geun Ryu, Dae-Yong Hwang
    Annals of Surgical Treatment and Research.2023; 104(5): 281.     CrossRef
Case Report
A Case of Successful Colonoscopic Treatment of Acute Appendiceal Bleeding by Endoclips
Il Hyung Chung, Kwang Hyun Kim
J Korean Soc Coloproctol. 2011;27(6):329-332.   Published online December 31, 2011
DOI: https://doi.org/10.3393/jksc.2011.27.6.329
  • 5,472 View
  • 22 Download
  • 12 Citations
AbstractAbstract PDF

Lower gastrointestinal bleeding is a common disease among elderly patients. The common sources of lower gastrointestinal bleeding include vascular disease, Crohn's disease, neoplasm, inflammatory bowel disease, hemorrhoid, and ischemic colitis. However, bleeding from the appendix has been reported very rarely in patients with lower gastrointestinal tract bleeding. In general, after a colonoscopic diagnosis of appendiceal bleeding, a laparoscopic or surgical appendectomy would be recommended. We report a case of successful colonoscopic treatment of appendiceal bleeding without complications by endoclips. This report suggests that colonoscopic clipping is a safe and effective means to treat bleeding from appendiceal lesions. Further study is needed to evaluate procedure-related complications and to confirm the procedure's safety and efficacy.

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    Chenyang Jiao, Cuixia Liu, Zhen Yang, Haihua Zhou, Yiwei Fu
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    Seema Belani, Janki Luther, Surachai Amornsawadwattana, Judy Trieu
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    Qin Ma, Jin-Jie Du
    World Journal of Clinical Cases.2024; 12(14): 2457.     CrossRef
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    Qin Ma, Jinjie Du
    International Journal of Surgery Case Reports.2023; : 108903.     CrossRef
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    Murat Karatas, Cenk Simsek, Süleyman Gunay, Baha Zengel, Gokalp Okut, Ali Murat Yıldırım, Enver Vardar, Adam Uslu
    Acta Chirurgica Belgica.2022; 122(5): 357.     CrossRef
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    Sheng-Yue Zhou, Mao-Dong Guo, Xiao-Hua Ye
    World Journal of Clinical Cases.2022; 10(18): 6314.     CrossRef
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    Eleanor J Smith, Charles Coventry, Jeremy Taylor, Henry De’ath, Ali Haque
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    So Ra Ahn, Joo Hyun Lee
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Original Article
The Synchronous Prevalence of Colorectal Neoplasms in Patients with Stomach Cancer
Sang Su Lee, Woon Tae Jung, Cha Young Kim, Chang Yoon Ha, Hyun Ju Min, Hyun Jin Kim, Tae Hyo Kim
J Korean Soc Coloproctol. 2011;27(5):246-251.   Published online October 31, 2011
DOI: https://doi.org/10.3393/jksc.2011.27.5.246
  • 6,346 View
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  • 10 Citations
AbstractAbstract PDF
Purpose

The association between stomach cancer and colorectal cancer is controversial. The purpose of this study was to determine the synchronous prevalence of colorectal neoplasms in patients with stomach cancer.

Methods

A total of 123 patients with stomach cancer (86 male) and 246 consecutive, age- and sex-matched persons without stomach cancer were analyzed from July 2005 to June 2010. All of them underwent colonoscopy within 6 months after undergoing gastroscopy.

Results

The prevalence of colorectal neoplasms was significantly higher in the stomach cancer group (35.8%) than in the control group (17.9%) (P < 0.001). Colorectal neoplasms were more prevalent in the patients with stomach cancer (odds ratio [OR], 3.10; 95% confidence interval [CI], 1.71 to 5.63). In particular, the difference in the prevalence of colorectal neoplasms was more prominent in the patients above 50 years old (OR, 3.54; 95% CI, 1.80 to 6.98).

Conclusion

The results showed that the synchronous prevalence of colorectal neoplasms was higher in patients with stomach cancer than in those without stomach cancer. Therefore, patients with stomach cancer should be regarded as a high-risk group for colorectal neoplasms, and colonoscopy should be recommended for screening.

Citations

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    Xu-Rui Liu, Ze-Lin Wen, Fei Liu, Zi-Wei Li, Xiao-Yu Liu, Wei Zhang, Dong Peng
    World Journal of Gastrointestinal Oncology.2024; 16(1): 133.     CrossRef
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    Xin Ni, Fan Pan, Ya Kun Lang, Wei Zhang
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    Hyun H. Chung, Kyeong O. Kim, Si H. Lee, Byung I. Jang, Tae N. Kim
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    Nam Hee Kim, Jung Ho Park, Dong Il Park, Chong Il Sohn, Yoon Suk Jung
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Case Reports
A Case of Endoscopic Resection of a Colonic Semipedunculated Leiomyoma
Seung Hwa Lee, Gun Yoong Huh, Yoo Seock Cheong
J Korean Soc Coloproctol. 2011;27(4):215-219.   Published online August 31, 2011
DOI: https://doi.org/10.3393/jksc.2011.27.4.215
  • 5,990 View
  • 39 Download
  • 11 Citations
AbstractAbstract PDF

During colonoscopic examination, epithelial lesions, such as adenomatous polyps, are frequently encountered, unlike subepithelial lesions, such as leiomyomas, which are uncommon. A colonic leiomyoma is a rare tumor, originating either from the mucularis mucosa or from the proper muscle, and accounts for only 3% of all gastrointestinal leiomyomas. Colonic leiomyomas are usually benign and asymptomatic. However, they can sometimes cause symptoms, ie, abdominal pain, intestinal obstruction, hemorrhage, and perforation. The traditional management option for a colonic leiomyoma is surgical resection. Recently, with the development of endoscopy devices and techniques, the endoscopic resection has been considered as an alternative treatment option. We experienced a patient with a leiomyoma that was diagnosed during colonoscopy. The leiomyoma was resected endoscopically without complication. We report this case with a review of the literature.

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    Abdulwahed A. Alotay
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A Case of Successful Colonoscopic Treatment of Colonic Obstruction Caused by Phytobezoar
Sang Seok Yoon, Min Seong Kim, Dong Yoon Kang, Tack Su Yun, Jun Ho Jeon, Yong Kyu Lee, Se Woong Choi, Chi Hoon Kim
J Korean Soc Coloproctol. 2011;27(4):211-214.   Published online August 31, 2011
DOI: https://doi.org/10.3393/jksc.2011.27.4.211
  • 10,748 View
  • 43 Download
  • 11 Citations
AbstractAbstract PDF

A phytobezoar is the most common type of bezoar, which is a gastrointestinal mass composed of vegetable. A persimmon is a common cause of a phytobezoar. The majority of bezoars are found in the stomach, with the small intestine being the next most commonly involved site. The colon is a rare site for a bezoar. Recently, we experienced a colonic bezoar that caused colonic obstruction in a 66-year-old female patient who took persimmons regularly. The patient came to the hospital because of abdominal pain and distension. To differentiate a tumor or other problems that can cause intestinal obstruction, we performed an abdominal computed tomography scan and found an ovoid intraluminal mass with a mottled gas pattern in the distal descending colon. A large impacted bezoar was seen in the sigmoid colon, which was completely obstructed, and it was successfully removed by using colonoscopy.

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    Fiorella Caputo, Rosario Barranco, Alessandro Bonsignore, Giulio Fraternali Orcioni, Francesco Ventura
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    Cláudio Franco do Amaral Kfouri, Maria Clara Ferreira Nonato Romania, Rennan Josely Moreira Julião, André Domingos Pippa Tomazella, Guilherme Paulo Carvalho de Amorim, Cleibe Nicácio da Silva, Claudinei da Silva, Maria Cristina Sartor
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    Alicia Hahn, Jennifer D'Agostino, Gretchen Cole, Michael Garner
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Original Articles
Analysis of Delayed Postpolypectomy Bleeding in a Colorectal Clinic
Do Hyoung Kim, Seok Won Lim
J Korean Soc Coloproctol. 2011;27(1):13-16.   Published online February 28, 2011
DOI: https://doi.org/10.3393/jksc.2011.27.1.13
  • 7,572 View
  • 44 Download
  • 8 Citations
AbstractAbstract PDF
Purpose

The colonoscopic polypectomy has become a valuable procedure for removing precursors of colorectal cancer, but some complications can be occurred. The most common complication after colonoscopic polypectomy is bleeding, which is reported to range from 1% to 6% and which can be immediate or delayed. Because the management of delayed postpolypectomy bleeding could be difficult, the use of preventive technique and reductions of risk factors are essential.

Methods

From January 2007 to December 2008, delayed hemorrhage occurred in 18 of the 1,841 polypectomy patients examined by one endoscopist. These cases were reviewed retrospectively for risk factors, pathologic findings, and treatment methods.

Results

Delayed bleeding occurred in 18/1,841 patients (0.95%). The mean age was 55.9 ± 10.9 years, and the male-to-female ratio was 8:1. The most common site was the right colon (11 cases, 61.1%), and the average polyp size was 9.2 ± 2.8 mm. Delayed bleeding was identified from 1 to 5 days after resection (mean, 1.6 ± 1.2 days). The most common macroscopic type of polyp was a sessile polyp (10 cases, 55.6%), and histologic finding was a tubular adenoma in 13 cases (72.2%). Seventeen cases were treated with clipping for hemostasis and 1 case with epinephrine injection.

Conclusion

The right colon and a sessile polyp were associated with an increase in delayed postpolypectomy bleeding. Reducing risk factors and close observation were essential in high risk patients, and prompt management with hemoclips was effective.

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    Yunho Jung, Il Kwun Chung, Young Sin Cho, Tae Hoon Lee, Sang-Heum Park, Ji Sung Lee, Sun Joo Kim
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  • Risk Factors for Delayed Post-Polypectomy Bleeding
    Min Jung Kwon, You Sun Kim, Song I Bae, Young Il Park, Kyung Jin Lee, Jung Hwa Min, Soo Yeon Jo, Mi Young Kim, Hye Jin Jung, Seong Yeon Jeong, Won Jae Yoon, Jin Nam Kim, Jeong Seop Moon
    Intestinal Research.2015; 13(2): 160.     CrossRef
  • Risk factors for delayed post‐polypectomy hemorrhage: A case‐control study
    Jeong Ho Kim, Hyun Jeong Lee, Ji Won Ahn, Dae Young Cheung, Jin Il Kim, Soo‐Heon Park, Jae Kwang Kim
    Journal of Gastroenterology and Hepatology.2013; 28(4): 645.     CrossRef
  • Serum C-reactive Protein As a Possible Marker to Predict Delayed Hemorrhage After Colonoscopic Polypectomy
    Liangqin Wu, Tiemei Han, Xiaoyuan Fan, Wensheng Pan, Chunfu Wang, Hua Zhong, Xinbo Ai, Wanjun Zhang, Xiang Xu, Zaiyuan Ye, Takesh Terai, Nobuhiro Sato, Sumio Watanabe, Undurti N. Das
    Medical Science Monitor.2012; 18(8): CR480.     CrossRef
  • Endoscopic mucosal resection with an over-the-counter hyaluronate preparation
    Shai Friedland, Shivangi Kothari, Ann Chen, Walter Park, Subhas Banerjee
    Gastrointestinal Endoscopy.2012; 75(5): 1040.     CrossRef
Efficacy of Transparent Cap-attached Colonoscopy: Does It Improve the Quality of Colonoscopy?.
Choi, Dong Hyun , Shin, Hyeon Keun , Lee, Young Chan , Lim, Cheong Ho , Jeong, Seung Kyu , Lee, Suk Hwan , Yang, Hyung Kyu
J Korean Soc Coloproctol. 2010;26(2):116-122.
DOI: https://doi.org/10.3393/jksc.2010.26.2.116
  • 8,610 View
  • 19 Download
  • 8 Citations
AbstractAbstract PDF
PURPOSE
Recently, the use of a transparent cap attached to the tip of the colonoscope has been revealed to be helpful in both detecting colorectal polyps and shortening the intubation time to the cecum. The aim of this study was to examine the usefulness of transparent cap-attached colonoscopy (CAC) as compared with conventional colonoscopy (CC) in terms of the technical ease and efficiency.
METHODS
Colonoscopies from a total of 228 patients between May and October 2008 were prospectively collected. All colonoscopies were performed by single colorectal surgeon whose experience exceeded 3,000 colonoscopies. Patients were assigned to the CAC group (n=114) or to the CC group (n=114). The cecal intubation rate and time, the polyp detection rate, the adenoma detection rate, the withdrawal time, and the visual analogue scale (VAS) of the patient's pain were compared.
RESULTS
There were no significant differences in the age, sex, body mass index, previous history of abdominal operation, diverticulosis, and the degree of bowel preparation between the two groups. The cecal intubation rate was 100% in both groups. The cecal intubation time was significantly shorter in the CAC group than in the CC group overall (5.3+/-4.0 min vs. 7.6+/-4.3 min, P<0.001), as well as for female (6.1+/-2.8 min vs. 9.1+/-4.7 min, P<0.001) patients. There were no statistically significant differences in the total colonoscopy time (13.1+/-6.3 min vs. 14.5+/-5.2 min, P=0.066), the polyp detection rate (38.6% vs. 33.3%, P=0.408), the adenoma detection rate (28.1% vs. 25.4%, P=0.654), and the VAS scale of pain (2.48 vs. 2.74, P=0.353) between the CAC and the CC groups.
CONCLUSION
The transparent cap is effective in shortening the cecal intubation time, especially in female patients.

Citations

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  • Cap-assisted endoscopy: Do we have enough evidence?
    Thomas Frieling
    Endoscopy International Open.2018; 06(10): E1224.     CrossRef
  • Improving the utility of colonoscopy: Recent advances in practice
    Crispin J Corte, Rupert W Leong
    Journal of Gastroenterology and Hepatology.2016; 31(1): 32.     CrossRef
  • The Effect of Indigocarmine on Improvement of the Polyp Detection Rate during Colonoscopic Examination with Hood Cap
    Sang Chang Kwon, Sung Won Choi, Seong Ho Choi, Hee Seung Park, Seung Heon Lee, Bong Gun Kim, Eun Hee Seo, Mun Jang, Seung Min Ryu, Dong Hyun Kim, Young Hoon Kim, Jun Ouk Ha, Jae Seung Lee
    Intestinal Research.2014; 12(1): 60.     CrossRef
  • Image-enhanced, chromo, and cap-assisted colonoscopy for improving adenoma/neoplasia detection rate: a systematic review and meta-analysis
    Fumio Omata, Sachiko Ohde, Gautam A. Deshpande, Daiki Kobayashi, Katsunori Masuda, Tsuguya Fukui
    Scandinavian Journal of Gastroenterology.2014; 49(2): 222.     CrossRef
  • Transparent cap colonoscopy versus standard colonoscopy: a systematic review and meta-analysis
    Jenna L. Morgan, Kathryn Thomas, Sarah Braungart, Richard L. Nelson
    Techniques in Coloproctology.2013; 17(4): 353.     CrossRef
  • Can Cap-Assisted Colonoscopy Be a Savior for Right Side Interval Cancer?
    Hyung Hun Kim
    Digestive Diseases and Sciences.2013; 58(2): 289.     CrossRef
  • Efficacy of Hood-cap Assisted Colonoscopy; Comparison with Conventional Colonoscopy
    Sung Won Choi, Hee Seung Park, Jae Seung Lee, Sang Yon Hwang, Sung Dong Kwak, Seong Ho Choi
    Intestinal Research.2012; 10(3): 280.     CrossRef
  • Transparent Cap Colonoscopy versus Standard Colonoscopy to Improve Caecal Intubation
    Jenna Morgan, Kathryn Thomas, Heather Lee-Robichaud, Richard L Nelson, Sarah Braungart
    Cochrane Database of Systematic Reviews.2012;[Epub]     CrossRef
Case Reports
Synchronous Multiple Colorectal Cancer Occurring in Polyposis.
Ham, Young Chan , Kim, Il Myung , Yun, Jin , Park, Sang Soo , Shin, Dong Gue , Kang, Seong Ku
J Korean Soc Coloproctol. 2010;26(1):80-84.
DOI: https://doi.org/10.3393/jksc.2010.26.1.80
  • 1,952 View
  • 12 Download
AbstractAbstract PDF
The frequencies of multiple synchronous carcinomas of the colon and the rectum have been reported to range from 2.1 to 6.3%. Currently, the frequency is higher in colorectal cancer patients, and the diagnosis is better due to the many diagnostic tools that have been developed. There are a few reported cases of five cancers in a patient at the same time. We report here on the case of five synchronous cancers arising from the colon and the rectum in a patient without a familial history of colon cancer or of genetic predisposing factor. The patient was a 62-yr-old woman who presented with frequently loose stool for six months and intermittent abdominal pain for two months. Colonoscopic examination revealed two adenocarcinomas, one each at the sigmoid colon and the rectum; the cancer in the sigmoid colon was obstructed at nearly 40 cm above the anal verge. Computed tomographic colonoscopy revealed many other polyps and masses in the colon and a metastatic mass at segment 8 in the liver. A total proctocolectomy and ileostomy were performed. Histologic evaluation revealed the five lesions to be adenocarcinomas invading the pericolic fat; 1 out of 30 lymph nodes was invaded by the cancer cells.
A Case of Successful Percutaneous Drainage of a Pelvic Abscess Complicating Colonoscopy.
Si, Youn , Kim, Shin Young , Choi, Seung Bong , Kim, Hyung Jin , Lee, Yoon Suk , Cho, Hyun Min , Kim, Jun Gi , Oh, Seung Tack , Lee, In Kyu
J Korean Soc Coloproctol. 2009;25(5):347-351.
DOI: https://doi.org/10.3393/jksc.2009.25.5.347
  • 2,584 View
  • 10 Download
  • 1 Citations
AbstractAbstract PDF
Perforations that occur during colonoscopy are usually managed by surgical repair. When the patient's symptoms are mild and laboratory findings show minor abnormalities, a conservative treatment can be considered. Although an operation is the treatment of choice in patients with generalized peritonitis, in some selected patients, percutaneous abscess drainage can be an alternative to surgical intervention for drainage of deep-infected fluid collections or can act as a temporary measure until the patient becomes sufficiently stable for surgery. We report here on a 53-yr-old male patient who developed signs of localized peritonitis and had a pelvic abscess due to a colonic perforation after colonoscopy and was treated successfully by using percutaneous abscess drainage.

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  • A Case of Buried Bumper Syndrome Complicated by Abdominal Wall Abscess in an Elderly Patient
    Chul Young Kim, Min Seong Kim, Do Young Kim, Young Bae Lim, Dong Yoon Kang, Tack Su Yun, Sang Seok Yoon, Jung Hyun Lee, Woo Young Kim, Yong Kyu Lee
    Journal of the Korean Geriatrics Society.2010; 14(4): 265.     CrossRef
Intestinal Obstruction Aggravated by Colonoscopy: A Case Report.
Kim, Hae Jung , Lee, In Tak , Yok, Eu Gon , Lee, So Jin , Lee, Suk Hee , Kim, Do Sun , Lee, Du Han
J Korean Soc Coloproctol. 2009;25(1):56-58.
DOI: https://doi.org/10.3393/jksc.2009.25.1.56
  • 2,949 View
  • 6 Download
  • 1 Citations
AbstractAbstract PDF
Colonoscopy is a frequently performed procedure used for colorectal cancer screening. Most frequent complication is colonic perforation and bleeding. Other visceral injuries are very rare, but injuries to the spleen and liver have been described. We report on 66-yr-old female who presented with abdominal pain after uneventful colonoscopy. Abdominal CT scan revealed a band at previous hysterectomy site and dilated small bowel suggesting strangulated loop. A broad based knowledge of the different complication is necessary to decrease the risk of associated morbidity and mortality.

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  • Severe ileus after colonoscopy in a patient on peritoneal dialysis
    Sang Un Kim, Su Hee Kim, So Yoon Hwang, Ryang Hi Kim, Ji Young Choi, Jang Hee Cho, Chan Duck Kim, Yong Lim Kim, Sun Hee Park
    Yeungnam University Journal of Medicine.2017; 34(1): 119.     CrossRef
Original Articles
Treatment of Colon Perforation Associated with Colonoscopy.
Park, Hae Ran , Baek, Seong Kyu , Bae, Ok Suk , Park, Sung Dae
J Korean Soc Coloproctol. 2008;24(5):322-328.
DOI: https://doi.org/10.3393/jksc.2008.24.5.322
  • 4,224 View
  • 49 Download
  • 3 Citations
AbstractAbstract PDF
PURPOSE
Recently, non-operative conservative management or laparoscopic repair has been reported for the management of colonic perforation during colonoscopy. However, the preferred management strategy remains controversial. The purpose of the present study is to identify an appropriate strategy for the treatment of colon perforation during colonoscopy.
METHODS
The medical records of patients who developed colon perforation during colonoscopy between May 2003 and November 2007 were retrospectively reviewed. The mechanism and site of perforation, the treatment administered, complications, and clinical outcomes were analyzed.
RESULTS
In total, 16 perforations were evaluated. Of these, 11 developed during diagnostic colonoscopy and 5 during therapeutic colonoscopy. The most frequent perforation site was the sigmoid colon (12), followed by the transverse colon (2), the rectum (1), and unknown site (1). Six patients underwent surgery due to signs of diffuse peritonitis 10 were initially treated conservatively. Among the patients who underwent surgery, four underwent laparoscopic repair and two underwent open repair. Among the patients initially treated conservatively two patients required surgery due to clinical deterioration of peritonitis and rectovaginal fistula. These 2 patients underwent repair with proximal diverting stomas.
CONCLUSIONS
Colon perforation associated with colonoscopy is a rare event, but raises serious complications. Selected patients with colonoscopic perforation may be treated conservatively, but if these patients fail to respond to such treatments, extensive surgical procedures may be warranted.

Citations

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  • Management Outcomes of Colonoscopic Perforations Are Affected by the General Condition of the Patients
    Jae Ho Park, Kyung Jong Kim
    Annals of Coloproctology.2018; 34(1): 16.     CrossRef
  • Comparison of the surgical outcomes of laparoscopic versus open surgery for colon perforation during colonoscopy
    Jeongsoo Kim, Gil Jae Lee, Jeong-Heum Baek, Won-Suk Lee
    Annals of Surgical Treatment and Research.2014; 87(3): 139.     CrossRef
  • A Case of Successful Percutaneous Drainage of a Pelvic Abscess Complicating Colonoscopy
    Youn Si, Shin Young Kim, Seung Bong Choi, Hyung Jin Kim, Yoon Suk Lee, Hyun Min Cho, Jun Gi Kim, Seung Tack Oh, In Kyu Lee
    Journal of the Korean Society of Coloproctology.2009; 25(5): 347.     CrossRef
Characteristics of Colorectal Cancer Detected at the Health Promotion Center.
Yoon, Yong Sik , Yu, Chang Sik , Jung, Sang Hoon , Choi, Pyong Wha , Han, Kyong Rok , Kim, Hee Cheol , Kim, Jin Cheon
J Korean Soc Coloproctol. 2007;23(5):321-326.
DOI: https://doi.org/10.3393/jksc.2007.23.5.321
  • 2,476 View
  • 19 Download
  • 3 Citations
AbstractAbstract PDF
PURPOSE
Colorectal cancer is regarded as preventable with routine checkups. The purpose of this study was to evaluate the usefulness of each test performed during routine checkups and to assess the clinicopathological characteristics of colorectal cancer detected at the Health Promotion Center (HPC).
RESULTS
We recruited 120 colorectal cancer patients identified on routine checkup at the HPC. The control group was composed of 3,829 colorectal cancer patients who underwent surgery during the same period. Clinicopathological variables were compared using the chi-square test.
RESULTS
The male-to-female ratio was 79:41; the mean age was 57.9 (30~78) years. The incidence of right colon cancer was 16.7%, and that of left colon cancer was 83.7%. Sigmoidoscopy (55.5%), colonoscopy (28.3%), and fecal occult blood tests (FOBT, 10.8%) were used for detecting colorectal cancer. The overall positive rates of FOBT and serum carcinoembryonic antigen (CEA) were 28.3% and 20.8%, respectively, but were higher in advanced colon cancer (49.0% and 31.4%) and right colon cancer (60% and 25%). Early colorectal cancer was more frequent in the study group (54.9%) than in the control group (16.9%, P<0.001). Right colon cancer was significantly associated with advanced colon cancer (80%), and left colon cancer was associated with early colon cancer (62.3%, P=0.001).
CONCLUSIONS
Endoscopy, including sigmoidoscopy and colonoscopy, played a crucial role in detecting early colorectal cancer at the HPC. Including endoscopy in basic routine checkup programs should help to increase early detection of colorectal cancer.

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  • Polymeric chitosan-glycolipid nanocarriers for an effective delivery of marine carotenoid fucoxanthin for induction of apoptosis in human colon cancer cells (Caco-2 cells)
    Hindupur Ravi, Nawneet Kurrey, Yuki Manabe, Tatsuya Sugawara, Vallikannan Baskaran
    Materials Science and Engineering: C.2018; 91: 785.     CrossRef
  • Features of Late Recurrence Following Transanal Local Excision for Early Rectal Cancer
    Bo Young Oh, Hae-Ran Yun, Seok Hyung Kim, Seong Hyeon Yun, Hee Cheol Kim, Woo Yong Lee, Ho-Kyung Chun, Yong Beom Cho
    Diseases of the Colon & Rectum.2015; 58(11): 1041.     CrossRef
  • The green algae Ulva fasciata Delile extract induces apoptotic cell death in human colon cancer cells
    Min Ju Ryu, Areum Daseul Kim, Kyoung Ah Kang, Ha Sook Chung, Hye Sun Kim, In Soo Suh, Weon Young Chang, Jin Won Hyun
    In Vitro Cellular & Developmental Biology - Animal.2013; 49(1): 74.     CrossRef
Surgical Management of Colonoscopic Perforations.
Park, Hyoung Chul , Kim, Duck Woo , Kim, Sang Gyun , Park, Kyu Joo , Park, Jae Gahb
J Korean Soc Coloproctol. 2007;23(5):287-291.
DOI: https://doi.org/10.3393/jksc.2007.23.5.287
  • 2,631 View
  • 21 Download
  • 4 Citations
AbstractAbstract PDF
PURPOSE
The purpose of this study is to evaluate the clinical features that necessitate a temporary stoma for the treatment of colonoscopic perforations.
RESULTS
Between January 2000 and July 2006, 30 patients were treated for colonoscopic perforation. Based on the perforation sites, we classified these patients into the following groups: proximal colon, sigmoid colon, and rectum; we then reviewed clinical data, including the time to operation and management.
RESULTS
Seventeen patients had a perforation during the diagnostic colonoscopy. Of these patients, 14 patients had sigmoid colon perforation. Six underwent an operation within 10 hours after perforation. Of these six, four were managed by primary repair or resection with anastomosis, one sigmoid colon cancer patient by anterior resection, and one rectal cancer patient by low anterior resection with diverting ileostomy. Eight patients underwent more than 12 hours after perforation. Of these eight, three were managed by resection with anastomosis and diverting ileostomy and five by resection with end colostomy. Thirteen patients had a perforation during the therapeutic colonoscopy. Of these patients, 10 patients had a proximal colon perforation. Of these 10, 3 without fever or peritonitis symptom were managed by conservative management, 6 by primary repair or resection with anastomosis, and 1 transverse colon cancer patient by right hemicolectomy. Three patients had sigmoid colon perforation. Of these three, one was managed by primary repair, one by resection with anastomosis, and one sigmoid colon cancer patient by anterior resection.
CONCLUSIONS
The mechanism of perforation, the site of the perforation, and the time to operation are associated with intraperitoneal contamination and have an influence on surgical treatment.

Citations

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  • A comparative analysis of traditional meat processing methods
    Kasun Dissanayake, Mohamed Rifky, Khabibulla Nurmukhamedov, Jasur Makhmayorov, Bakhodir Abdullayev, Jasur Farmanov, Murodjon Samadiy, T. Itao, V. Perskaya, W. Yanmin, D. Morkovkin
    E3S Web of Conferences.2024; 494: 04023.     CrossRef
  • Comparison of the surgical outcomes of laparoscopic versus open surgery for colon perforation during colonoscopy
    Jeongsoo Kim, Gil Jae Lee, Jeong-Heum Baek, Won-Suk Lee
    Annals of Surgical Treatment and Research.2014; 87(3): 139.     CrossRef
  • Colonoscopic Perforation; A 10-year Experience in Single General Hospital
    Ji Eun Oh, Sang Goon Shim
    The Korean Journal of Gastroenterology.2009; 54(6): 371.     CrossRef
  • Treatment of Colon Perforation Associated with Colonoscopy
    Hae Ran Park, Seong Kyu Baek, Ok Suk Bae, Sung Dae Park
    Journal of the Korean Society of Coloproctology.2008; 24(5): 322.     CrossRef
Distribution and Characteristics of Colorectal Polyps at Colonoscopy.
Lee, Jeong Eun , Yoon, Se Jin , Ahn, Eun Jung , Chung, Soon Sup , Lee, Ryung Ah , Kim, Kwang Ho , Park, Eung Bum
J Korean Soc Coloproctol. 2006;22(4):223-228.
  • 1,381 View
  • 10 Download
AbstractAbstract PDF
PURPOSE
The screening test for colorectal polyp is important for the early detection and prevention of colorectal cancer. The aims of this study were to evaluate the characteristic findings and the anatomical distribution of colorectal polyps observed during colonoscopy and to determine proper screening candidates to undergo colonoscopy for colorectal cancer.
METHODS
From March 1999 to February 2004, 3,454 asymptomatic individuals underwent total colonoscopy. The number, the location, and the histology of polyps were evaluated retrospectively in 634 patients who had colorectal polyps (453 males and 181 females). The relations among age, location, and histology were analyzed.
RESULTS
The mean age was 60 years (range, 15 to 95). Four hundred and twenty-two patients (67%) had a single polyp, and 212 (33%) had two or more polyps. Left-sided polyps were observed in 422 patients (67%), right-sided polyps in 134 patients (21%), and synchronous both-sided polyps in 78 patients (12%). Adenomas were present in 387 patients (61%), and adenocarcinomas were detected in 47 patients (7.4%). There was no definite correlation between location and histology. However the prevalence of right-sided polyps increased with age (P<0.01).
CONCLUSIONS
More than 30% of the polyps were located proximal to the splenic flexure. Thus, in the absence of left-sided lesions, an examination of the colon that is limited to the splenic flexure might miss 21% of such lesions. The increasing prevalence of right-sided polyps with age suggests that evaluation of the proximal colon is particularly important in the elderly, especially in those older than 60 years.
Safety and Efficacy of Colonoscopic Tattooing of a Colorectal Neoplasm Prior to a Laparoscopic Resection.
Kim, Duck Woo , Sohn, Dae Kyung , Choi, Hyo Seong , Chang, Hee Jin , Han, Kyung Soo , Lim, Seok Byung , Chung, Seung Yong , Park, Jae Gahb
J Korean Soc Coloproctol. 2006;22(2):97-102.
  • 1,429 View
  • 11 Download
AbstractAbstract PDF
PURPOSE
Accurate tumor localization prior to a laparoscopic surgical resection is the critical. India ink tattoos properly placed in the colorectum are long lasting and have been reported to probably remain constantly in previous studies. The present study was done to review the safety and reliability of colonoscopic tattooing prior to a laparoscopic resection of a colorectal neoplasm.
METHODS
Between May 2003 and August 2004, 20 patients underwent colonoscopic tattooing of a colorectal neoplasm prior to laparoscopic surgery. The clinical data were retrospectively reviewed.
RESULTS
Among the 20 patients, 14 (70%) had tumors located in the sigmoid colon, 4 (20%) had tumors in the rectosigmoid junction, and 1 had a tumor (5%) in the upper rectum and descending colon. In six patients (30%) who had received an endoscopic mucosal resection (EMR), an additional surgical resection was required to remove the tumor completely, and those 6 patients needed another preoperative colonoscopy for India ink tattooing. The median time between tattooing and resection was 2 days (range: 1 to 18 days). Tattoos were visualized intraoperatively and localized the tumor accurately in 15 patients (75%). Seven patients underwent intraoperative colonoscopy; five didn't have tattoos that could be visualized intraoperatively, and two patients with visible tattoos needed intraoperative colonoscopy to confirm the site of tumor. Only one patient (5%) had mild fever with abdominal discomfort, which were relieved by hydration and administration of intravenous antibiotics for one day.
CONCLUSIONS
A colorectal neoplasm can be localized with an acceptable reliability by using preoperative colonoscopic tattooing. India ink tattooing at the time of the EMR may reduce unnecessary colonoscopies if we doubt a complete resection has been achieved by using an EMR. The complications following colonoscopic tattooing were minimal.
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