Cervical dilatation at the time of cesarean section may affect the success of a subsequent vaginal delivery

Author: Kwon Ji Young   Jo Yun Sung   Lee Gui Se Ra   Kim Sa Jin   Shin Jong Chul   Lee Young  

Publisher: Informa Healthcare

ISSN: 1476-4954

Source: Journal of Maternal-Fetal and Neonatal Medicine, Vol.22, Iss.11, 2009-11, pp. : 1057-1062

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Objective. To evaluate the effect of labor progress prior to cesarean delivery on the outcome of vaginal birth after cesarean delivery (VBAC). Methods. The medical records of women attempting VBAC between January 2000 and February 2008 were reviewed. All women had only one previous cesarean and underwent spontaneous labor. Results. Among 1148 enrolled women, 956 (83.3%) achieved a successful VBAC. Birth weight, previous indication for cesarean delivery and oxytocin augmentation were significantly associated with VBAC outcome. By multivariate analysis, a cervical dilatation ≥8 cm at previous cesarean was independently predictive of successful VBAC in women with a previous cesarean for non-recurrent indications (p = 0.046), yielding a VBAC success rate of 93.1%, whereas the extent of cervical dilatation at the previous cesarean did not affect the outcome of subsequent delivery in women with a previous cesarean for recurrent indications. Conclusions. Women with cesarean for non-recurrent indications who achieved a cervical dilatation ≥8 cm may be the best candidates for VBAC, with the greatest likelihood of a successful VBAC. Labor progress at previous cesarean can serve as a valuable indicator for VBAC outcome in women with a previous cesarean for non-recurrent indications, and therefore should be discussed as part of preconception counseling.

Related content