RT Journal Article SR Electronic T1 Toxic megacolon: the knee-elbow position relieves bowel distension. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1726 OP 1727 DO 10.1136/gut.34.12.1726 VO 34 IS 12 A1 Panos, M Z A1 Wood, M J A1 Asquith, P YR 1993 UL http://gut.bmj.com/content/34/12/1726.abstract AB Toxic megacolon complicating inflammatory or infective colitis carries a high morbidity and mortality and surgical intervention is necessary in up to 80% of cases. Perforation complicates toxic megacolon in about 35% of cases. After perforation, the death rate nears 50%. Gaseous distension of the bowel causes considerable discomfort to the patient and increases transmural pressure. The latter is thought to cause a reduction in blood flow and may predispose to perforation. The use of instruments for colonic aspiration is discouraged, because of the high risk of perforation. The successful use of the knee-elbow position to relieve bowel distension in two patients with toxic megacolon is described.