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HOME > J Korean Soc Coloproctol > Volume 22(3); 2006 > Article
Original Article
The Clinical Characteristics and Outcomes of Biofeedback Treatment for Patients with Nonrelaxing Puborectalis Syndrome.
Ahn, Eun Jung , Jeong, Gyu Young , Cheon, Seung Hui , Lee, Eun Joung , Oh, Soo Youn , Chung, Soon Sup , Lee, Ryung Ah , Kim, Kwang Ho , Park, Eung Bum
Journal of the Korean Society of Coloproctology 2006;22(3):169-176

1Department of Surgery, College of Medicine, Ewha Womans University, Seoul, Korea. gs3945@dreamwiz.com
2Department of Surgery, College of Medicine, Konkuk University, Cheongju, Korea.
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PURPOSE
Biofeedback treatment is thought to be appropriate for patients with nonrelaxing puborectalis syndrome (NRPR). The aim of this study is to analyze the physiologic characteristics and to assess the outcomes of biofeedback treatment for patients with NRPR.
METHODS
Forty-six (46) patients with NRPR were evaluated with anorectal physiologic studies, including colonic transit time (n=26), anorectal manometry (n=41), defecography (n=46), anal sphincter EMG (n=28), and colonoscopy or barium enema (n=33). The treatment consisted of a training program with EMG-based biofeedback for 30 minutes once a week and routine supportive care, including Kegel practice.
RESULTS
The mean age was 52.8 years, and the sex ratio was 1 male to 0.6 female. A delayed colonic transit time was noted in 5 patients (19.26%). In the NRPR group, the maximal voluntary contraction and the mean squeezing pressure were higher than they were for other patients with pelvic outlet obstructive disease. Also, the perineal descents and the dynamic change of anorectal angle were shorter. Polyps were observed in 6 patients (18.2%), melanosis coli in 4 patients (12.1%), and diverticula in 3 patients (9.1%). The rectoanal inhibitory reflex (RAIR) was negative in 3 patients (7.3%). The patients underwent a mean of 4.0 sessions, and the mean follow-up was 7.4 months. Twenty-three (23) patients (82.1%) experienced improved of symptoms or EMG findings. The patients (17.9%) who did not improve had several abnormal findings: neuro-psychologic disease with delayed colonic transit time in 2 cases, negative RAIR in 2 cases, and melanosis coli in one case.
CONCLUSIONS
We think that biofeedback training is an effective treatment for patients with NRPR. In addition, several factors, such as neuro-psychologic diseases, delayed colonic transit time, negative RAIR, or melanosis coli may influence the prognosis for biofeedback treatment, so further large-scaled studies will be needed to confirm these findings.


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