Marginal ulcers after laparoscopic Roux-en-Y gastric bypass: analysis of the amount of daily and lifetime smoking on postoperative risk.

Background: A common postoperative complication after laparoscopic Roux-en-Y gastric bypass (LRYGB) is the development of marginal ulcers (MUs) at the gastrojejunal anastomosis. Several risk factors, such as smoking, seem to have an impact on the development of MUs.

Objective: Very little is known about how much smoking increases the risk.