What are Risk Factors Associated with Complete Uterine Rupture?
This study by Al-Zirqi et al. (AJOG, 2017) sought to determine risk factors for complete uterine rupture during childbirth.
1,317,967 women without previous C-section and 57,859 with previous C-section were surveyed. Of the women without previous C-section, 51 experienced complete uterine rupture, and of the women with previous C-section, 122 experienced complete uterine rupture. Regardless of previous history of C-section, the largest risk factor for complete uterine rupture was labor induction followed with prostaglandins and oxytocin. Other risk factors in both groups included labor augmentation with oxytocin alone, antepartum fetal death, and previous first-trimester miscarriage. In women who had a previous C-section, risk increased in those women who had experienced severe postpartum hemorrhage and when the interdelivery interval was <16 months.
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