September 7, 2026 · American journal of obstetrics & gynecology MFM · DOI: 10.1016/j.ajogmf.2026.102110

Higher maternal body mass index is associated with increased oxytocin requirements during induction of labor: a population-based cohort study

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This study aimed to evaluate the relationship between maternal body mass index (BMI) and the requirements for oxytocin during labor induction in nulliparous women. The findings revealed that higher maternal BMI is associated with increased cumulative oxytocin doses and maximum infusion rates, suggesting a reduced responsiveness to oxytocin as BMI increases. The authors advocate for the consideration of BMI-tailored dosing strategies for oxytocin during labor induction.

Nathalie Bladfält, Anna Ramö Isgren, Marie Blomberg, Sara Carlhäll

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