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Background <p>Limited literature exists on labor and delivery outcomes after bariatric surgery. This study assesses the impact of prior bariatric surgery on peripartum outcomes.</p> Methods <p>We queried the National Inpatient Sample (2016–2020) for labor and delivery admissions, categorizing them into three cohorts: prior bariatric surgery (BaS), obesity without prior bariatric surgery, and controls without obesity. We used a multivariate regression model, adjusting for confounders, to compare peripartum outcomes.</p> Results <p>We identified 22,685 BaS cases, 2.1 million pregnant controls with obesity, and 16.37 million pregnant controls without obesity. Compared to controls with obesity, the BaS cohort had lower rates of cesarean delivery [43% vs 46.8%, adjusted odds ratio (aOR) 0.72, <i>p</i> &lt; 0.001], fetal distress [aOR 0.79, <i>p</i> &lt; 0.001), post-partum hemorrhage (aOR 0.67, <i>p</i> &lt; 0.001), fetal disproportion (aOR 0.36, <i>p</i> &lt; 0.001), and premature rupture of membranes (aOR 0.88, <i>p</i> = 0.04). Compared to controls without obesity, the BaS group had higher rates of cesarean delivery (43% vs 29.57%, aOR 1.43, <i>p</i> &lt; 0.001), breech presentation (aOR 1.4, <i>p</i> &lt; 0.001), thromboembolic events (aOR 2.47, <i>p</i> = 0.01), and pregnancy termination (aOR 1.59, <i>p</i> = 0.048), but lower rates of assisted delivery (aOR 0.54, <i>p</i> &lt; 0.001), fetal disproportion (aOR 0.56, <i>p</i> = 0.025), PROM (aOR 0.87, <i>p</i> = 0.024), and placenta previa (aOR 0.63, <i>p</i> = 0.019). The BaS group had longer hospitalizations (3.11 vs 2.56&#xa0;days, <i>p</i> &lt; 0.001) and higher hospitalization charges ($25,941 vs $20,760, <i>p</i> &lt; 0.001) compared to controls without obesity.</p> Conclusion <p>Pregnancy after bariatric surgery is associated with lower odds of cesarean delivery and postpartum complications, relative to the general population with obesity. This underscores the positive impact of bariatric surgery on peripartum outcomes.</p>

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Impact of Prior Bariatric Surgery on Labor and Delivery-Related Outcomes: A Nationwide Study

  • 期刊论文

  • 发表日期：

    2025年3月4日

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  • Bhanu Siva Mohan Pinnam,
  • Pius Ehiremen Ojemolon,
  • Shahroz Fatima,
  • Marwan S. Abougergi,
  • Violeta Popov

摘要

Background

Limited literature exists on labor and delivery outcomes after bariatric surgery. This study assesses the impact of prior bariatric surgery on peripartum outcomes.

Methods

We queried the National Inpatient Sample (2016–2020) for labor and delivery admissions, categorizing them into three cohorts: prior bariatric surgery (BaS), obesity without prior bariatric surgery, and controls without obesity. We used a multivariate regression model, adjusting for confounders, to compare peripartum outcomes.

Results

We identified 22,685 BaS cases, 2.1 million pregnant controls with obesity, and 16.37 million pregnant controls without obesity. Compared to controls with obesity, the BaS cohort had lower rates of cesarean delivery [43% vs 46.8%, adjusted odds ratio (aOR) 0.72, p < 0.001], fetal distress [aOR 0.79, p < 0.001), post-partum hemorrhage (aOR 0.67, p < 0.001), fetal disproportion (aOR 0.36, p < 0.001), and premature rupture of membranes (aOR 0.88, p = 0.04). Compared to controls without obesity, the BaS group had higher rates of cesarean delivery (43% vs 29.57%, aOR 1.43, p < 0.001), breech presentation (aOR 1.4, p < 0.001), thromboembolic events (aOR 2.47, p = 0.01), and pregnancy termination (aOR 1.59, p = 0.048), but lower rates of assisted delivery (aOR 0.54, p < 0.001), fetal disproportion (aOR 0.56, p = 0.025), PROM (aOR 0.87, p = 0.024), and placenta previa (aOR 0.63, p = 0.019). The BaS group had longer hospitalizations (3.11 vs 2.56 days, p < 0.001) and higher hospitalization charges ($25,941 vs $20,760, p < 0.001) compared to controls without obesity.

Conclusion

Pregnancy after bariatric surgery is associated with lower odds of cesarean delivery and postpartum complications, relative to the general population with obesity. This underscores the positive impact of bariatric surgery on peripartum outcomes.