Pregnancy after bariatric surgery - does weight loss surgery influence maternal and fetal outcomes? Findings from the maternal outcomes of bariatric surgery and pregnancy study (MOMBARIS 2).

OBJECTIVES

Obesity negatively affects female fertility and pregnancy outcomes. Bariatric surgery improves weight, metabolism, and fertility, but concerns remain about maternal and neonatal outcomes. To evaluate reproductive and perinatal outcomes in Polish women who conceived after bariatric surgery (MOMBARIS 2).

MATERIAL AND

METHODS

A retrospective study (2015-2024) in 11 bariatric centers included 160 women post-surgery; 154 conceived and were analyzed for fertility, pregnancy, and neonatal outcomes.

RESULTS

Pregnancy occurred in 97.5% of participants, mostly spontaneous (83.8%) and planned (58.7%). BMI dropped from 43.1 to 30.45 kg/m².

COMPLICATIONS: anemia (35.9%), gestational diabetes (16.2%), hypertension (10.2%). Cesarean rate: 52.7%. Neonatal outcomes were favorable: median birth weight 3,330 g, gestational age 39 weeks, 97.9% had Apgar 10, and 3.0% had anomalies.

CONCLUSIONS

Despite maternal risks, neonatal outcomes were excellent. Bariatric surgery improves fertility without compromising fetal health.