Safety and Effect of Bariatric Metabolic Surgeries for Psychiatric Patients with Obesity: A Retrospective Matched Case-control Trial.

BMS is an effective weight loss treatment and a safe procedure for patients with psychiatric disorders. We found no change in the patients' psychiatric status outside the usual disease course. Postoperative de novo PI was rare in the present study. Furthermore, patients with severe psychiatric illness were excluded from undergoing surgery and, therefore, from the study. Careful follow-up is necessary to guide and protect patients with PI.