An increasing number of prior VBACs is associated with a greater probability of VBAC success, as well as a lower risk of uterine rupture and perinatal complications in the current pregnancy. Women with prior successful VBAC attempts are at low risk for maternal and neonatal complications during subsequent VBAC attempts. No increase in neonatal morbidities was seen with increasing VBAC number thereafter. The risk of uterine dehiscence and other peripartum complications also declined statistically after the first successful VBAC. The rate of uterine rupture decreased after the first successful VBAC and did not increase thereafter: 0.87%, 0.45%, 0.38%, 0.54%, 0.52% (P=.03). Outcomes were compared according to the number of prior VBAC attempts subsequent to the last cesarean delivery.Īmong 13,532 women meeting eligibility criteria, VBAC success increased with increasing number of prior VBACs: 63.3%, 87.6%, 90.9%, 90.6%, and 91.6% for those with 0, 1, 2, 3, and 4 or more prior VBACs, respectively (P<.001). We want you to be completely confident in the facility in which you give birth, and at the prospect of going home to being your journey as a new parent. There’s a lot to learn when preparing for the birth of your baby.
To estimate the success rates and risks of an attempted vaginal birth after cesarean delivery (VBAC) according to the number of prior successful VBACs.įrom a prospective multicenter registry collected at 19 clinical centers from 1999 to 2002, we selected women with one or more prior low transverse cesarean deliveries who attempted a VBAC in the current pregnancy. Labor and Delivery Triage area 2 East Labor and Delivery Unit 2 East Preparing for the Birth of your Baby.
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