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Inflammatory Bowel Diseases:
doi: 10.1002/ibd.21644
Original Article

Efficacy and safety of endoscopic treatment of ileal pouch strictures

Shen, Bo MD1,*; Lian, Lei MD1; Kiran, Ravi P. MD1; Queener, Elaine LPN1; Lavery, Ian C. MD1; Fazio, Victor W. MB, MS1; Remzi, Feza H. MD1

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Abstract

Background:: Endoscopic management of ileal pouch strictures has not been systemically studied. The aim was to evaluate endoscopic balloon therapy of pouch strictures in inflammatory bowel disease (IBD) patients with ileal pouches and to identify risk factors for pouch failure for those patients.

Methods:: Consecutive IBD patients with pouches from the Pouchitis Clinic who underwent nonfluoroscopy‐guided outpatient endoscopic therapy were studied. The location, number, degree (range 0–3), and length of strictures and balloon size were documented. Efficacy and safety were evaluated with univariate and multivariate analyses.

Results:: A total of 150 patients with pouch strictures were studied. Stricture locations were at the pouch inlet (n = 96), outlet (n = 73), afferent limb (n = 33), and pouch body (n = 2). A cumulative of 646 strictures were endoscopically dilated, with a total of 406 pouchoscopies. The median stricture score was 1 (interquartile range [IQR] 1–2); the median stricture length was 1 (IQR 0.5–1.25) cm, and the median balloon size was 20 (IQR 18–20) mm. Of 406 therapeutic endoscopies performed, there were two perforations (0.46%) and four transfusion‐required bleeding (0.98%). The 5‐, 10‐, and 25‐year pouch retention rates were 97%, 90.6%, and 85.9%, respectively. In a median follow‐up of 9.6 (IQR 6–17) years, 131 patients (87.3%) were able to retain their pouches. The number of strictures and underlying diagnosis were independent risk factors for pouch failure in the Cox regression model.

Conclusions:: Endoscopic treatment of pouch stricture appears to be efficacious and generally safe to perform in experienced hands. Underlying diagnosis of Crohn's disease of the pouch and surgery‐related strictures and multiple strictures were the risk factors for pouch failure.

© Crohn's & Colitis Foundation of America, Inc.

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