The Sphincter of O ’Beirne—Part 2: Report of a Case of Chronic Constipation with Autonomous Dyssynergia

ConclusionsChronic constipation without the presence of spontaneous bowel movements can be associated with normal colonic motor patterns but a highly exaggerated pressure at the rectosigmoid junction: the sphincter of O ’Beirne, and failure of this sphincter and the anal sphincters to relax associated with propulsive motor patterns. The sphincter of O’Beirne can be an important part of the pathophysiology of chronic constipation.
Source: Digestive Diseases and Sciences - Category: Gastroenterology Source Type: research