Gestational weight gain and perinatal outcomes in pregnancies with prepregnancy bmi ≥ 50 kg/m²

The authors aimed to compare perinatal outcomes in pregnancies with a prepregnancy BMI of ≥50 kg/m² across different gestational weight gain categories and to identify maternal characteristics associated with preterm delivery. The study found that while birth weight increased with greater weight gain, fetal growth restriction was more common in the weight loss/no gain group, and preterm birth was linked to older age, higher prepregnancy BMI, and chronic hypertension. However, the authors noted that the independent contributions of these factors remain unclear and warrant further investigation.