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2 "Kwan Mo Yang"
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Case Report
Malignant disease
Treatment of a Total Obstructive Anastomosis Stricture Using a Transanal Laparoscopic Approach and Intraoperative Colonoscopic Balloon Dilatation
Jae Young Kwak, Kwan Mo Yang, Hyun Il Seo
Ann Coloproctol. 2020;36(5):353-356.   Published online May 15, 2020
DOI: https://doi.org/10.3393/ac.2020.02.27
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AbstractAbstract PDF
An anastomosis stricture with a total obstruction is rare and treatment options are variable. We describe our experience with a combination of a single port transanal laparoscopic approach and intraoperative colonoscopic balloon dilatation. The patient was a 48-year-old man with rectal cancer. A laparoscopic single port lower anterior resection and diverting ileostomy were performed followed by a colon study and ileostomy takedown. The colon study and sigmoidoscopy revealed total obstruction of the rectum at the anastomosis level. We employed a transanal approach using a single port to correct this. We located the anastomosis stricture site and generated a lumen using a dissector and electocautery method to insert the balloon device. Colonoscopic balloon dilatation was subsequently successful. The patient was discharged with no postoperative complications. A laparoscopic single port transanal approach with an intraoperative colonoscopic balloon dilatation is a viable alternative approach to treating an anastomosis stricture of the rectum.
Original Article
Does the Different Locations of Colon Cancer Affect the Oncologic Outcome? A Propensity-Score Matched Analysis
Kwan Mo Yang, In Ja Park, Jong Lyul Lee, Yong Sik Yoon, Chan Wook Kim, Seok-Byung Lim, Na Young Kim, Shinae Hong, Chang Sik Yu, Jin Cheon Kim
Ann Coloproctol. 2019;35(1):15-23.   Published online February 28, 2019
DOI: https://doi.org/10.3393/ac.2018.07.25
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  • 125 Download
  • 4 Web of Science
  • 3 Citations
AbstractAbstract PDF
Purpose
We evaluate the prognostic value of primary tumor location for oncologic outcomes in patients with colon cancer (CC).
Methods
CC patients treated with curative surgery between 2009 and 2012 were classified into 2 groups: right-sided colon cancer (RCC) and left-sided colon cancer (LCC). Recurrence-free survival (RFS) and overall survival (OS) were examined based on tumor stage. Propensity scores were created using eight variables (age, sex, T stage, N stage, histologic grade, presence of lymphovascular invasion/perineural invasion, and microsatellite instability status).
Results
Overall, 2,329 patients were identified. The 5-year RFSs for RCC and LCC patients were 89.7% and 88.4% (P = 0.328), respectively, and their 5-year OSs were 90.9% and 93.4% (P = 0.062). Multivariate survival analyses were carried out by using the Cox regression proportional hazard model. In the unadjusted analysis, a marginal increase in overall mortality was seen in RCC patients (hazard ratio [HR], 1.297; 95% confidence interval [CI], 0.987–1.704, P = 0.062); however, after multivariable adjustment, similar OSs were observed in those patients (HR, 1.219; 95% CI, 0.91–1.633; P = 0.183). After propensity-score matching with a total of 1,560 patients, no significant difference was identified (P = 0.183). A slightly worse OS was seen for stage III RCC patients (HR, 1.561; 95% CI, 0.967–2.522; P = 0.068) than for stage III LCC patients. The 5-year OSs for patients with stage III RCC and stage III LCC were 85.5% and 90.5%, respectively (P = 0.133).
Conclusion
Although the results are inconclusive, tumor location tended to be associated with OS in CC patients with lymph node metastasis, but it was not related to oncologic outcome.

Citations

Citations to this article as recorded by  
  • Prognostic value of primary tumor location in colorectal cancer: an updated meta-analysis
    Hanieh Gholamalizadeh, Nima Zafari, Mahla Velayati, Hamid Fiuji, Mina Maftooh, Elnaz Ghorbani, Seyed Mahdi Hassanian, Majid Khazaei, Gordon A. Ferns, Elham Nazari, Amir Avan
    Clinical and Experimental Medicine.2023; 23(8): 4369.     CrossRef
  • Inhibition of CXCR4 and CXCR7 Is Protective in Acute Peritoneal Inflammation
    Kristian-Christos Ngamsri, Christoph Jans, Rizki A. Putri, Katharina Schindler, Jutta Gamper-Tsigaras, Claudia Eggstein, David Köhler, Franziska M. Konrad
    Frontiers in Immunology.2020;[Epub]     CrossRef
  • Left colon as a novel high-risk factor for postoperative recurrence of stage II colon cancer
    Liming Wang, Yasumitsu Hirano, Toshimasa Ishii, Hiroka Kondo, Kiyoka Hara, Nao Obara, Shigeki Yamaguchi
    World Journal of Surgical Oncology.2020;[Epub]     CrossRef
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