The safety of a trial of labor after cesarean section in a grandmultiparous population
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The rate of vaginal birth after a cesarean (VBAC) delivery in the multiparous population has decreased largely in recent years because of maternal and neonatal complications. The clinical management of grand multiparous (GMP) women (>5 births) with a prior cesarean delivery is even less clear. The purpose of the present study was to assess the risks of maternal and neonatal complications associated with VBAC compared to that of repeated elective cesarean section (CS) in the GMP population.
A retrospective study of 1,102 GMP women with a singleton gestation and a prior single CS was conducted. Data were retrieved from the database of the Department of Obstetrics and Gynecology at the Soroka University Medical Center, Beer Sheva, Israel. Maternal and neonatal outcomes were compared between women who underwent a successful VBAC attempt, women who had failed in a trial of labor and women who had an elective repeated CS.
Six hundred and nineteen women (56%) underwent a successful VBAC, 155 (14%) underwent a trail of labor and 328 (30%) had an elective repeated CS. Women who had a successful VBAC required less blood transfusion, and had less puerperal fever diseases (P < 0.001). Induction or augmentation of labor was associated with failure of VBAC (P < 0.001). No significant differences in neonatal complications were observed between the groups. No significant difference in uterine dehiscence, uterine rupture, amnionitis, postpartum hemorrhage, hysterectomy, puerperal fever and thromboembolic diseases was observed between the groups.
A successful VBAC in the GMP population was not associated with a higher risk of maternal complications in comparison with a repeated elective CS.
KeywordsVBAC Trial of labor Elective cesarean delivery Grand multiparous Uterine dehiscence Uterine rupture Neonatal mortality rate
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