Outcomes of pregnancy after bariatric surgery: results of a French matched-cohort study.

Background: While the benefits of bariatric surgery (BS) on pregnancy outcomes have been demonstrated for women compared with matched controls on presurgery body mass index (pB-BMI), data are lacking and those benefits are uncertain compared with matched controls on prepregnancy BMI (pP-BMI).

Objectives: Our study aimed to evaluate outcomes (obstetrical and neonatal) of single pregnancy in women previously exposed to BS compared with women unexposed to BS matched on pB-BMI and pP-BMI.

Settings: Retrospective matched cohort study from 2 observational studies of pregnant women conducted in a French administrative county (Finistère).