Post-index procedural gain in body mass index is associated with recurrent ileal pouch sinus after endoscopic or surgical therapy

Ileal pouch-anal anastomosis has become the standard surgical procedure for patients with ulcerative colitis who require colectomy. Presacral sinus is a common complication after the surgery. Pouch sinus results from chronic anastomotic or suture line leak. An excessive gain in body mass index (BMI) has been shown to be associated with poor pouch outcome. The aim of this study was to evaluate whether an increase in BMI was associated with...