Preoperative reflux or regurgitation symptoms are independent predictors of postoperative nausea and vomiting (PONV) in patients undergoing bariatric surgery: a propensity score matching analysis.

Incidence of PONV after bariatric surgery is high. For the first time, this study valued preoperative reflux or regurgitation symptoms as risk factors that may promote PONV after bariatric surgery. Patients with preoperative symptoms undergoing LSG have a higher risk of PONV, so these patients should be carefully evaluated for the feasibility of LSG before surgery.