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Sleeve Gastrectomy in Mice using Surgical Clips
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Perinatal Outcome After Bariatric Surgery.

Joshua Lewis1, Bryce Gantt2, Amani R Patterson1

  • 1John Sealy School of Medicine, University of Texas Medical Branch, Galveston, TX, USA.

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|November 14, 2025
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Summary
This summary is machine-generated.

Bariatric surgery significantly lowers risks for adverse pregnancy outcomes like gestational diabetes and preeclampsia. This highlights the benefits of bariatric surgery for women of reproductive age planning pregnancy.

Keywords:
adverse outcomesbariatric surgerygastrointestinal surgeryobesityperinatal outcomesplastic surgery

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Area of Science:

  • Obstetrics and Gynecology
  • Bariatric Surgery
  • Reproductive Health

Background:

  • Bariatric surgery is increasingly common for obesity in reproductive-aged individuals.
  • Its impact on subsequent pregnancy outcomes requires further investigation.

Purpose of the Study:

  • To evaluate perinatal outcomes in pregnancies following bariatric surgery.
  • To compare outcomes between post-bariatric surgery patients and a matched control group.

Main Methods:

  • Retrospective cohort study using the TriNetX Research Network.
  • Identified pregnant females (≥18 years) with prior bariatric surgery.
  • Used propensity score matching (1:1) for 41,777 pairs, controlling for key health factors.

Main Results:

  • Significantly lower risks observed post-bariatric surgery for fetal growth restriction (FGR), macrosomia, gestational hypertension, preeclampsia, gestational diabetes, and preterm delivery.
  • Odds ratios (ORs) ranged from 0.283 to 0.831 for these outcomes compared to controls.

Conclusions:

  • Pregnancy after bariatric surgery is associated with substantially reduced risks of adverse perinatal outcomes.
  • Findings support bariatric surgery's role in improving maternal and fetal health and emphasize preconception counseling.