Annals of Coloproctology

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Benign proctology

Comparison of 3-Dimensional Pelvic Floor Ultrasonography and Defecography for Assessment of Posterior Pelvic Floor Disorders: Hong Yoon Jeong, Shi-Jun Yang, Dong Ho Cho, Duk Hoon Park, Jong Kyun Lee; Ann Coloproctol. 2020;36(4):256-263. Published online March 16, 2020; DOI: https://doi.org/10.3393/ac.2020.02.09

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Purpose
The aim of this study was to determine the accuracy of 3-dimensional (3D) pelvic floor ultrasonography and compare it with defecography in assessment of posterior pelvic disorders.
Methods
Eligible patients were consecutive women undergoing 3D pelvic floor ultrasonography at one hospital between August 2017 and February 2019. All 3D pelvic floor ultrasonography was performed by one examiner. A total of 167 patients with suspected posterior pelvic disorder was retrospectively enrolled in the study. The patients were divided into 3 groups according to the main symptoms.
Results
There were 82 rectoceles on defecography (55 barium trapping) and 84 on 3D pelvic floor ultrasonography. Each modality identified 6 enteroceles. There were 43 patients with pelvic floor dyssynergia on defecography and 41 on ultrasonography. There were 84 patients with intussusception on defecography and 41 on 3D pelvic floor ultrasonography. Agreement of the 2 diagnostic tests was confirmed using Cohen’s kappa value. Rectocele (kappa, 0.784) and enterocele (kappa, 0.654) both indicated good agreement between defecography and 3D pelvic floor ultrasonography. In addition, pelvic floor dyssynergia (kappa, 0.406) showed moderate agreement, while internal intussusception (kappa, 0.296) had fair agreement.
Conclusion
This study showed good agreement for detection of posterior pelvic disorders between defecography and 3D pelvic floor ultrasonography.

Citations

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Can we use integrated total pelvic floor ultrasound as a screening tool in defaecatory pelvic floor dysfunction? A prospective evaluation of the accuracy of integrated total pelvic floor ultrasound compared with defaecation proctography
Charlotte Ralston, Max Reena, Deepa Solanki, Samantha Morris, Alexis M. P. Schizas, Andrew B. Williams, Alison J. Hainsworth
Colorectal Disease.2025;[Epub] CrossRef
Clinical value of transperineal ultrasound in evaluating the diagnostic grade of rectocele in Chinese women with obstructed defecation syndrome: An observational study
Yunlin Jiang, Zhimin Fan, Ling Gao, Guangshu Shen, Jingjing Yue, Xiaofeng Wang, Xueping Zheng, Yahong Xue
Medicine.2024; 103(36): e39259. CrossRef
Rectal prolapse and surgery for faecal incontinence
Judith Johnston, Athur Harikrishnan
Surgery (Oxford).2023; 41(7): 449. CrossRef
Role of contrast-enhanced ultrasonography in MR-guided focused ultrasound ablation on uterus fibroids: lesion selection and assessment of ablative effects
Wen Luo, Pei-di Zhang, Xiao Yang, Jian-min Zheng, Ying Liu, Xing Tang, Hai-jing Liu, Lei Ding, Li-na Pang, Xiao-dong Zhou, Li-wen Liu, Min-wen Zheng
European Radiology.2022; 32(3): 2110. CrossRef
Colonic pseudo-obstruction in a patient with dyssynergic defecation: A case report
Yejun Jeong, Yongjae Kim, Wonhyun Kim, Seoyeon Park, Su-Jin Shin, Eun Jung Park
International Journal of Surgery Case Reports.2022; 98: 107524. CrossRef
Is It a Refractory Disease?- Fecal Incontinence; beyond Medication
Chungyeop Lee, Jong Lyul Lee
The Ewha Medical Journal.2022;[Epub] CrossRef
Three-Dimensional Pelvic Floor Ultrasound Assessment of Pelvic Organ Prolapse: Minimal Levator Hiatus and Levator Ani Deficiency Score
Yongwoo Yune, Hong Yoon Jeong, Duk Hoon Park, Jong Kyun Lee
Annals of Coloproctology.2021; 37(5): 291. CrossRef

Benign proctology

Analyzing the Role of Anal Sphincter Pressure in Rectocele Formation: Süleyman Büyükaşık, Mehmet Abdussamet Bozkurt, Selin Kapan, Halil Alis; Ann Coloproctol. 2020;36(5):330-334. Published online March 16, 2020; DOI: https://doi.org/10.3393/ac.2019.09.15

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Abstract PDF

Purpose
Constipation is a common entity in society with various factors in the etiology. In this study, we evaluated the role of anal sphincter pressure of patients who refer to surgery clinic with complaint of constipation.
Methods
Sixty patients who refer to surgery clinic with complaint of constipation and were diagnosed with constipation due to Rome III criteria between July 2010 and September 2014. These patients were evaluated with defecography and were divided into 2 groups based on presence of rectocele. Both groups’ anal sphincter pressures were evaluated using anal manometry and findings were compared.
Results
The patients with rectocele and without rectocele using defecography were inspected with anal manometry regarding resting tone pressure, squeeze pressure, maximum squeeze pressure and simulated defecation response pressure, first sensation volume, urge sensation volume, and maximum tolerable volume. Results were compared and no significant difference was found regarding groups with rectocele and without rectocele (P > 0.05).
Conclusion
We have proved the hypothesis arguing that increased sphincter pressures do not play a role in the formation of rectocele by inducing an obstruction and the formation of dilation in proximal bowel, and demonstrated that the presence of rectocele is not dependent on an increase in sphincter pressures.

Citations

Citations to this article as recorded by

A possible physiological mechanism of rectocele formation in women
Ge Sun, Robbert J. de Haas, Monika Trzpis, Paul M. A. Broens
Abdominal Radiology.2023; 48(4): 1203. CrossRef
Colonic pseudo-obstruction in a patient with dyssynergic defecation: A case report
Yejun Jeong, Yongjae Kim, Wonhyun Kim, Seoyeon Park, Su-Jin Shin, Eun Jung Park
International Journal of Surgery Case Reports.2022; 98: 107524. CrossRef
Treatment of Hemorrhoid in Unusual Condition-Pregnancy
Hyo Seon Ryu
The Ewha Medical Journal.2022;[Epub] CrossRef

An Analysis of Factors Associated with Increased Perineal Descent in Women: Jina Chang, Soon Sup Chung; J Korean Soc Coloproctol. 2012;28(4):195-200. Published online August 31, 2012; DOI: https://doi.org/10.3393/jksc.2012.28.4.195

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Abstract PDF

Purpose

Treatment of descending perineal syndrome is focused on personal etiology and on improving symptoms. However, the etiology of increased perineal descent (PD) is unclear. Therefore, the aim of the present study was to evaluate factors associated with increased resting and dynamic PD in women.

Methods

From January 2004 to August 2010, defecographic findings in 201 female patients were reviewed retrospectively. Patient's age, surgical history, manometric results and defecographic findings were compared with resting and dynamic PD.

Results

Age (P < 0.01), number of vaginal deliveries (P < 0.01) and resting anorectal angle (P < 0.01) were correlated with increased resting PD. Also, findings of rectoceles (P < 0.05) and intussusceptions (P < 0.05) were significantly correlated with increased resting PD. On the other hand, increased dynamic PD was correlated with age (P < 0.05), resting anal pressure (P < 0.01) and sigmoidoceles (P < 0.05). No significant correlation existed between non-relaxing puborectalis, history of pelvic surgery and increased PD. Also, no significant differences in PD according to the symptoms were observed.

Conclusion

Increased number of vaginal deliveries and increased resting rectoanal angle are associated with increased resting PD whereas increased resting anal pressure is correlated with increased dynamic PD. Older age correlates with both resting and dynamic PD. Defecographic findings, such as rectoceles and intussusceptions, are associated with resting PD, and sigmoidoceles correlated with dynamic PD. These results can serve as foundational research for understanding the pathophysiology and causes of increasing PD in women better and for finding a fundamental method of treatment.

Citations

Citations to this article as recorded by

Evaluation of Perineal Descent Measurements on Pelvic Floor Imaging
Isabelle M. A. van Gruting, Kirsten Kluivers, Aleksandra Stankiewicz, Joanna IntHout, Kim W. M. van Delft, Ranee Thakar, Abdul H. Sultan
Journal of Clinical Medicine.2025; 14(2): 548. CrossRef
Enhancing clinical practice: The role of digital rectal examination in diagnosing functional defecation disorders
Lian-Jun Zhu, Xing-Lin Zeng, Xiang-Dong Yang
World Journal of Gastrointestinal Surgery.2025;[Epub] CrossRef
Imaging and clinical assessment of functional defecatory disorders with emphasis on defecography
Neeraj Lalwani, Rania Farouk El Sayed, Amita Kamath, Sara Lewis, Hina Arif, Victoria Chernyak
Abdominal Radiology.2021; 46(4): 1323. CrossRef
Consensus Definitions and Interpretation Templates for Fluoroscopic Imaging of Defecatory Pelvic Floor Disorders
Ian Paquette, David Rosman, Rania El Sayed, Tracy Hull, Ervin Kocjancic, Lieschen Quiroz, Susan Palmer, Abbas Shobeiri, Milena Weinstein, Gaurav Khatri, Liliana Bordeianou
Diseases of the Colon & Rectum.2021; 64(1): 31. CrossRef
Consensus Definitions and Interpretation Templates for Fluoroscopic Imaging of Defecatory Pelvic Floor Disorders Proceedings of the Consensus Meeting of the Pelvic Floor Consortium of the American Society of Colon and Rectal Surgeons, the Society of Abdom
Ian Paquette, David Rosman, Rania El Sayed, Tracy Hull, Ervin Kocjancic, Lieschen Quiroz, Susan Palmer, Abbas Shobeiri, Milena Weinstein, Gaurav Khatri, Liliana Bordeianou
Female Pelvic Medicine & Reconstructive Surgery.2021; 27(1): e1. CrossRef
Consensus Definitions and Interpretation Templates for Fluoroscopic Imaging of Defecatory Pelvic Floor Disorders
Ian Paquette, David Rosman, Rania El Sayed, Tracy Hull, Ervin Kocjancic, Lieschen Quiroz, Susan Palmer, Abbas Shobeiri, Milena Weinstein, Gaurav Khatri, Liliana Bordeianou
Techniques in Coloproctology.2021; 25(1): 3. CrossRef
Descending Perineum Associated With Pelvic Organ Prolapse Treated by Sacral Colpoperineopexy and Retrorectal Mesh Fixation: Preliminary Results
Aude Nessi, Aminata Kane, Etienne Vincens, Delphine Salet-Lizée, Karine Lepigeon, Richard Villet
Frontiers in Surgery.2018;[Epub] CrossRef
Descending perineum syndrome: a review of the presentation, diagnosis, and management
Zaid Chaudhry, Christopher Tarnay
International Urogynecology Journal.2016; 27(8): 1149. CrossRef
Correlation Between Echodefecography and 3-Dimensional Vaginal Ultrasonography in the Detection of Perineal Descent in Women With Constipation Symptoms
Sthela M. Murad-Regadas, Francisco Sergio Pinheiro Regadas, Lusmar V. Rodrigues, Adjra da Silva Vilarinho, Guilherme Buchen, Livia Olinda Borges, Lara B. Veras, Mariana Murad da Cruz
Diseases of the Colon & Rectum.2016; 59(12): 1191. CrossRef
Descending perineum syndrome: new perspectives
F. Pucciani
Techniques in Coloproctology.2015; 19(8): 443. CrossRef
A theory of progression from obstructed defecation to fecal incontinence
F. Pucciani
Techniques in Coloproctology.2015; 19(12): 713. CrossRef

Investigation of Defecographic Findings in Patients with Pelvic Outlet Obstructive Disease.: Kim, Kyong Rae , Kim, Young Sok , Chung, Soon Sup , Ahn, Eun Jung , Oh, Soo Youn , Park, Ung Chae , Shon, Dae Ho , Sakong, Joon , Kim, Sang Woon , Kim, Jae Hwang , Shim, Min Chul; J Korean Soc Coloproctol. 2005;21(6):376-383.

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Abstract PDF: PURPOSE
Defecography is a dynamic investigation which can influence clinical decision making in patients with pelvic outlet obstructive disease (POOD). The current study was designed to establish defecographic findings in patients with POOD. Specifically, we sought to assess the physiologic characteristics of categorized types by using anorectal physiologic tests.
METHODS
One hundred seven patients (disease group; 45 men, 62 women) with POOD were retrospectively categorized as type I [non-relaxation of puborectalis (NRPR) only, n=19], type II [NRPR and rectocele, n=20], type III [NRPR, rectocele, and dynamic perineal descent (PD), n=17], type IV [deformed rectocele, mild-to-moderate fixed PD, and absence of NRPR, n=29], and type V [rectocele, severe fixed PD, and absence of NRPR, n=20] on the bases of defecographic findings. The ability to evacuate, the frequency/degree of intarectal intussusception (IRI), and the size of the rectocele were evaulated in these defecographic types of POOD. Age, duration of symptoms, and the physiologic findings of anal manometry and EMG/PNTML were compared for the five types. Eighteen healthy volunteers who had no defecation difficulty were used to estimate the normal findings of defecography.
RESULTS
The age and the sex showed no significant differences among the types. The duration of symptoms was gradually lengthened from type I to V (P<0.01). The ability to evacuate in patients with POOD was significantly worse (failed to effectively evacuate) compared to that in the healthy volunteers (P<0.01). The frequency of IRI was increased more and more from type I to V (P<0.01). The size of the rectocele was significantly increased in types V compared to the other types (P<0.01). Manometric and neurologic findings, including EMG/PNTML, revealed no significant differences among the types.
CONCLUSIONS
Even though there were no specific differences in the findings of the anal manometric and neurologic tests, the evacuation dynamics; were different in the five defecographic categories of patients with POOD. Specifically, these differences were relevants to the presence of NRPR, rectoceles, IRI, and perineal descent.

Role of Anorectal Physiologic Studies for the Diagnosis and Treatment of Non- relaxing Puborectalis Syndrome.: Kim, Nam Hyuk , Hwang, Yong Hee , Choi, Kun Phil; J Korean Soc Coloproctol. 2003;19(4):221-228.

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Abstract PDF: PURPOSE
To assess the effectiveness of cinedefecography (CD), anal electromyography (EMG), and anal manometry (ARM) for the diagnosis of non-relaxing puborectalis syndrome (NRPR) and to compare the outcomes for patients after biofeedback therapy (BF).
METHODS
The clinical criteria used in this study for NRPR included straining, incomplete evacuation, tenesmus, and the need for enemas, suppositories, or digitation. Patients who satisfied the clinical criteria were evaluated by use of anorectal physiology tests: CD, EMG, and ARM. The EMG criteria included failure to achieve a significant decrease in the electrical activity of the puborectalis (PR) during attempted evacuation. The ARM criteria included failure to achieve a significant decrease in intra-anal pressure during attempted evacuation. The CD criteria included either paradoxical contraction or failure of the PR to relax together with incomplete evacuation. Other possible etiologies for incomplete evacuation, such as rectal intussusception or rectocele, were excluded in all cases. Fifty-eight constipated patients diagnosed as having NRPR by at least one of anorectal physiolosic tests had more than one BF session. The outcomes for fifty-one patients (mean age, 44.8 years; male-to-female ratio, 22:29) were reported as either improved or unimproved at a mean follow-up of 12.7 (range, 2~30) months. The sensitivities, the specificities, and the positive and negative predictive values for the CD, EMG, and ARM diagnoses of NRPR were calculated to assess the diagnostic accuracy of each test and to identify predictors associated with the outcome of BF.
RESULTS
The sensitivities of EMG, CD, and ARM were 96%, 89%, and 85%, respectively (P>0.05). The positive predictive values of the three tests were 63% for EMG, 52% for ARM, and 51% for CD (P>0.05). The negative predictive values of the three tests were 90% for EMG, 43% for ARM, and 25% for CD (P<0.05). The specificities of the three tests were 38% for EMG, 13% for ARM, and 2% for CD (P<0.05). The positive predictive values the two-study-positive groups and the three-study-positive group were 63% for the EMG- and ARM-positive group, 61% for the CD- and EMG-positive group, 51% for the CD- and ARM-positive group, and 61% for the three-study- positive group (P>0.05).
CONCLUSIONS
A combination of the CD and the EMG tests is suggested for the diagnosis of NRPR.

Characteristic Findings and Their Clinical Appraisal of Proctography and Cinedefecography in Patients with Pelvic Outlet Obstructive Disease.: Kim, Kyong Rae , Kim, Young Sok , Chung, Soon Sup , Lee, Chang Hee , Chae, Gi Bong , Roh, Hye Rin , Choi, Won Jin , Park, Ung Chae; J Korean Soc Coloproctol. 2003;19(2):94-100.

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Abstract PDF: PURPOSE
We were assessed the characteristic findings of defecography and cinedefecography in patients with pelvic outlet obstructive disease, and compared the characteristic physiologic findings between proctography and cinedefecography.
METHODS
Physiologic findings of 196 patients who were performed at least two items of physiologic tests were retrospectively evaluated. Patients were categorized as rectocele (Group I: n=119), nonrelaxing puborectalis syndrome (Group II: n=58), rectoanal intussusception (Group III: n=16), significant sigmoidocele (Group IV: n=3). The proctographic and cinedefecographic features were analyzed according to disease categories. The sensitivity, specificity, accuracy, false positive rate, false negative rate, diagnostic rate, and reproducibility were calculated, and we analyzed the difference between proctography and cinedefecography according to the disease groups.
RESULTS
On the proctographic examinations; 1) 112 patients were confirmed as a clinically significant rectocele (n=128, sensitivity; 94%, specificity; 79%, accuracy; 88%, false positive rate; 21%, false negative rate; 6%, kappa; 0.749). 2) A clinically significant nonrelaxing puborectalis were 36 patients (n=73, sensitivity; 62%, specificity; 73%, accuracy; 70%, false positive rate; 27%, false negative rate; 38%, kappa; 0.328). 3) 12 patients were confirmed as significant rectoanal intussusception (n=31, sensitivity; 75%, specificity; 89%, accuracy; 88%, false positive rate; 11%, false negative rate; 25%, kappa; 0.425). 4) 3 patients were confirmed as clinically significant sigmoidocele (n=15, sensitivity; 100%, specificity; 94%, accuracy; 94%, false positive rate; 6%, false negative rate; 0%, kappa; 0.316). On the combination of proctography and cinedefecography; 1) 117 patients were confirmed as a clinically significant rectocele (n=122, sensitivity; 98%, specificity; 94%, accuracy; 96%, false positive rate; 6%, false negative rate; 2%, kappa; 0.925). 2) A clinically significant nonrelaxing puborectalis were 50 patients (n=64, sensitivity; 86%, specificity; 90%, accuracy; 88%, false positive rate; 10%, false negative rate; 14%, kappa; 0.738). 3) 16 patients were confirmed as significant rectoanal intussusception (n=22, sensitivity; 100%, specificity; 97%, accuracy; 97%, false positive rate; 3%, false negative rate; 0%, kappa; 0.826). 4) 3 patients were confirmed as clinically significant sigmoidocele (n=9, sensitivity; 100%, specificity; 97%, accuracy; 97%, false positive rate; 3%, false negative rate; 0%, kappa; 0.488). As compared with combined study (proctography plus cinedefecography), the proctography show decreased diagnostic rates in the evaluation of rectocele (P<0.05), nonrelaxing puborectalis (P<0.01), and rectoanal intussusception (P<0.05). And, the proctography also show increased false positive rate in the evaluation of rectocele (P<0.01), nonrelaxing puborectalis (P<0.01), and rectoanal intussusception (P<0.05).
CONCLUSIONS
In our study, proctography showed a tendency to overdiagnosis. Therefore, the combined study of proctography and cinedefecography should be taken as a diagnostic tools for pelvic outlet obstructive disease. Adhering to these findings, other anorectal physiologic studies should be added for the clinically significant diagnosis.

Difference between Genders in Patients with Obstructive Defecation: Analysis of 1,513 Defecograms.: Park, Duk Hoon , Yoon, Seo Gue , Yoon, Jong Seop , Lee, Jong Ho , Rhoe, Hee Jung , Moon, Min Joo , Kim, Hyun Shig , Lee, Jong Kyun , Kim, Kwang Yun; J Korean Soc Coloproctol. 2002;18(2):73-82.

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Abstract PDF: PURPOSE
The aims of this study were to find the difference in frequency between genders and to determine the correlation between age-related disease and other diseases in obstructive defecation.
METHODS
A consecutive series of 1,513 patients (343 males, 1,170 females) with obstructive defecation who undertook defecography and/or cinedefecography during 1 year period was analyzed.
RESULTS
The causes of obstructive defecation in males showed as spastic pelvic floor syndrome (SPFS) (48.3%), rectal prolapse (RP) (31.4%), descending perineum syndrome (DPS) (25.9%), enterocele or sigmoidocele (7.6%), and rectocele (7%). However, in females, the causes were rectocele (83.8%), DPS (49.2%), RP (37.6%), SPFS (32.5 %), and enterocele or sigmoidocele (11.2%). The SPFS was negatively correlated with enterocele or sigmoidocele, DPS, RP in both genders, but SPFS had no statistical correlation with rectocele. DPS was correlated with RP in both genders and with enterocele or sigmoidocele in females, but no statistical correlation was seen in males. The size of the rectocele showed a slight correlation with age in females (r=0.102, P=0.01). Age was correlated with rectal prolapse in females; however, it showed a negative correlation with SPFS in females.
CONCLUSIONS
The frequency of diseases causing obstructive defecation is different between genders. Age may not play a role in aggrevating the diseases causing obstructive defecation. Further pathophysiologic study of gender differences in patients with obstructive defecation is needed.

Biofeedback Therapy in Patients with Nonrelaxing Puborectalis Syndrome: Are there differences of therapeutic effect according to methods of diagnosis?.: Jeong, Jae Heon , Choi, Jeong Seok , Seo, Yong Jun , Kim, Jun Hyun; J Korean Soc Coloproctol. 2001;17(1):26-32.

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Abstract PDF: PURPOSE
To evaluate therapeutic effect of biofeedback therapy according to methods of diagnosis in patients with norelaxing puborectalis syndrome.
METHODS
From September, 1, 1998 to February, 30, 1999, the patients who were diagnosed with norelaxing puborectalis syndrome on anal electromyography (EMG) and/or cinedefecography (CD) underwent biofeedback therapy. The patients were divided into 3 groups according to the diagnostic method; CD group - only diagnosed on cinedefecography, EMG group - only diagnosed on anal electromyography, CD EMG group - diagnosed on both tests.
RESULTS
Nineteen patients were diagnosed nonrelaxing puborectalis syndrome on CD and/or EMG. There were 14 females and 5 males with a mean age of 40.8+/-18.4 years. The patients were classified into CD group; five patients (26.3%); EMG group, eight patients (42.1%); CD EMG group, six patients (31.6%). The patients had 5.4 3.7 sessions of outpatient EMG-based biofeedback sessions. Subjective symptoms after biofeedback therapy improved in 4 (80.0%), 6 (75%), 5 (83%) patients in CD, EMG, CD EMG groups, respectively. There was a statistically significant increase in spontaneous bowel movements, and a reduction in assisted bowel movements after biofeedback therapy in patients in all three groups (p<0.05). However, no significant difference was found among the three groups.
CONCLUSION
This study demonstrated that biofeedback therapy had a high therapeutic effect regardless to the diagnostic method. Therefore, biofeedbck therapy can be performed if one test results in the diagnosis of norelaxing puborectalis syndrome in patients with constipation.

A Role of Anorectal Physiologic Study for the Diagnosis of Chronic Constipation.: Kim, Seung Han , Hwang, Yong Hee , Choi, Kun Phil; J Korean Soc Coloproctol. 2000;16(4):231-238.

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Abstract PDF: To assess the role of anorectal physiologic study for the diagnosis of chronic idiopathic constipation.
METHODS
A retrospective study of 81 constipated patients (23 male, 58 female) of mean age 48 16.6 (16~83) years who had no abnormalities in colonoscopy, barium enema, and rectal exam was done. 81 patients underwent defecography and cine-defecography, of which 66 patients underwent anal manometry, 52 patients underwent colonic transit time study (CTT), and 27 patients underwent anal plug electromyography (EMG).
RESULTS
Nonrelaxing puborectalis syndrome (NRPR), rectocele, rectal intussusception, anal dyschezia, and sigmoidocele were observed in 27 (33.3%), 26 (32.1%), 14 (17.3%), 3 (3.7%), and 2 (2.5%) of the patients, respectively. Normal cinedefecography finding was observed in 21 (25.9%) patients. More than one abnormal finding was found in 11 (13.6%) patients. Abnormal findings included colonic inertia in 6 (11.5%) patients and pelvic outlet obstruction in 2 (3.8%) patients. Normal colon transit time was observed in 44 (84.6%) patients. Anal hypertonia was observed in 23 (34.8%) patients by anal monometry, of which 3 patients were diagnosed with anal dyschezia in cinedefecography. 13 (48.1%) patients were diagnosed with NRPR in anal plug EMG. The correlation rate between cinedefecography/EMG, defecography/CTT, and CTT/EMG were 81.5%, 61.5%, and 51.9% respectively in the diagnosis of NRPR. Sensitivities of the three tests were 72.7% for cinedefecography, 66.7% for EMG, and 7.7% for CTT in diagnosing NRPR (p<0.05). Positive predictive values of the three tests were 80% for anal plug EMG, 72.7% for cinedefecography, and 50% for CTT in the diagnosis of NRPR.
CONCLUSIONS
Defecography and EMG were complements each of the other in diagnosis of pelvic outlet obstruction especially NRPR, but CTT has no role.

Clinical and Physiologic Study of Encopresis.: Chung, Soon Sup , Kwon, Jae Bong; J Korean Soc Coloproctol. 2000;16(3):171-176.

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Abstract PDF: The pathophysiology of pediatric encopresis has been incomprehensible. The current study was designed to assess its clinical and physiologic findings. Moreover, outcome of treatment was evaluated.
METHODS
The clinical and functional findings of 18 patients (13 boys, 5 girls) were analyzed, retrospectively. Physiologic studies for cooperative child included anal manometry (n=12), cinedefecography (n=3), and PNTML (pudendal nerve terminal motor latency, n=1). For exclusion of the organic cause, barium contrast study was carried out in all case. Patients were categorized by leading symptom as constipation or incontinence. Physiologic findings and outcome of treatment were analyzed based on the categorized groups. Biofeedback therapy by using newly-developed anal sphincter control system (KONTINENCE CLINICAL(TM)) in my institute, was underwent a mean 4.1 (range, 2~12) sessions. The outcome was analyzed in the period of 5.4 (range, 1~33) months follow-up.
RESULTS
Patients were categorized as having constipation (group I, n=12) or incontinence (group II, n=6) group. In the manometric parameters, there were no statistical differences between the values of the mean resting pressure (RP), the maximum RP, and the maximum voluntary contraction between group I and II. In the cinedefecography, 3 of group I patients revealed as having the pelvic floor dyssynergia. The findings of PNTML were not specific in group II (n=1). Regarding to the therapeutic outcome, 8 of 10 patients were cured or improved.
CONCLUSIONS
There were no differences in the resting and squeeze profiles of manometric parameters between two groups. However, pelvic floor dyssynergia was identified in the cinedefecography of constipated group. Conventional and biofeedback treatment for encopretic children provides acceptable outcome.

Clinical Significance of Defecography in Patients with Constipation.: Kwon, Ho Young , Kim, Kwang Ho , Shim, Kang Sub; J Korean Soc Coloproctol. 1999;15(3):195-202.

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Abstract PDF: PURPOSE
To evaluate the clinical usefulness of defecogrophy in diagnosing the etiology and pathophysiology of constipation. A retrospective study of 56 constipated patients who had no abnormalities in colonoscopy, barium enema and rectal exam were done.
METHODS
Fifty-six patients (12 men, 44 women) with constipation underwent defecography and 37 of the patients underwent colonic transit studies. Fluoroscopically guided defecography was performed with barium paste introduced into the rectum.
RESULTS
Normal defecography finding was observed in thirteen of the 56 patients. Rectocele, spastic levator syndrome (nonrelaxing puborectalis syndrome), sigmoidocele, rectal prolapse, rectal intussusception were observed in 67% (38/56), 30% (20/56), 7% (4/56), 5% (3/56) and 2% (1/56) of the patients, respectively. More than one pathological finding was found in 23 (53%) patients. Of the 38 rectoceles, 17 cases were found to be associated with spastic levator syndrome. In solitary rectocele, the anorectal angles at rest, during straining were 92.65 9.08o, 108.09 14.35o, while 99.85 11.85o, 95.90 17.84o, in spastic levator syndrome. In 36 difficult bowel movements, 66% (24/36), 30% (11/36), 3% (1/36) were found to have rectocele, spastic levator syndrome, and sigmoidocele, respectively. Normal colonic transit time was observed in twenty six of the 37 patients. Abnormal findings included colonic inertia in 3 (8%) patients, hindgut dysfunction in 4 (11%) patients, and, outlet obstruction in 4 (11%) patients. Of the normal colonic transit time in 26, rectocele in sixteen, rectal prolapse in 1, spastic levator in 2 were observed. Rectoceles were observed in 2 out of 3 colonic inertia, in all 4 hindgut dysfunction, in 1 out of 4 outlet obstruction.
CONCLUSIONS
Our findings suggest that constipation is often a disorder of defecation rather than a impairment of colonic motility. Defecography should be considered first of all in evaluating the pathophysiology of constipation, especially for whom complaining of difficult bowel.

Anorectal Physiology in the Rectal Prolapse Patient.: Son, Kyung Soo , Joo, Jae Sik , Wexner, Steven D; J Korean Soc Coloproctol. 1998;14(3):467-476.

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Abstract PDF: PURPOSE
The aim of our study was to evaluate the physiological spectrum of anorectal dysfunction among patients with full thickness circunferential rectal prolapse. MATERIAL AND METHODS: Between January 1988 and March 1995, 88 patients who visited department colorectal surgery, Cleveland Clinic Florida with rectal prolapse were studied. There were 8 males and 80 females, with a mean age 69 (range 28~101) years. Patients underwent a detailed history and the following anorectal physiology tests were performed: anal canal manometry, pudendal nerve terminal motor latency (PNTML) assessment, anal electromyography and cinedefecography.4 standard continence scoring system, based on the frequency and type of incontinence (0=full continence, 20=complete incontinence) was used. Patients with rectal prolapse (n=88) were divided into two subgroups: Group I=continent patients (n=33) and Group II= incontinent patients (n=55).
RESULTS
There were statistically significant differences between each group when comparing mean resting pressures, anal pressures, anal canal length, rectal compliance, rectoanal inhibitory reflex, increased fiber density, the occurrence of premature evacuation (p<0.001), and rectal capacity (p<0.05). However, dynamic changes of anorectal angle, resting anorectal angle, puborectalis length, and rectal sensitivity were not significantly different (p>0.05) between groups.
CONCLUSION
Continence may be disturbed in patients with rectal prolapse; knowledge of impairment in continence may assist in surgical management.

Defecographic Findings in Patients with Fecal Incontinence.: Park, Hyo Jin , Jung, Jun Keun , Shin, Jae Ho , Lee, Sang In , Park, In Suh; J Korean Soc Coloproctol. 1997;13(4):591-596.

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Abstract PDF: We performed this study to investigate defecographic findings in patients with fecal incontinence and to compare these findings with age-matched asymptomatic controls. Twenty patients with fecal incontinence and 20 asymptomatic subjects were included. Videodefecography and pelvic electrophysiologic test were performed. There were no significant differences on the presence of rectal wall changes such as rectocele, mucosal prolapse, or incomplete evacuation, but intussusception was more common in patients group. The anorectal angle were 112.8+/-16.2degrees, 93.0+/-15.0degrees, 118.8+/-16.3degrees at resting, squeezing, and straining, respectively in controls, whereas 121.5+/-20.8degrees, 110.8+/-22.2degrees, 132.0+/-21.1degrees, respectively in patients group. There were significant differences of anorectal angle at squeezing and straining in patients group compared with controls(p< 0.05). Perineal descent was significantly decreased at squeezing in patients group compared with controls(p<0.05). Anal canal width was signi(icantly widened in patients group compared with controls(p<0.05). There were no differences in various defecographic parameters depending on the presence of pudendal neuropathy. In conclusion, defecographic findings in fecal incontinence showed more obtuse anorectal angle, poorer perineal descent at squeezing, and widening of anal canal.

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