Factors Associated with Success Rate of Vaginal Birth after One Caesarean Section (VBAC) in Ibrahim Malik Teaching Hospital, Khartoum-Sudan

Abstract

Objectives: To determine success rate of VBAC (Vaginal Birth after Cesarean Section) with reference to prognostic factors to predict successful VBAC in Ibrahim Malik Teaching Hospital-Khartoum-Sudan. Methodology: It was observational, cross sectional and hospital based study conducted between (January-December 2015), involving 342 pregnant women with one previous C/S who were admitted in the labor room as emergency cases, were evaluated thoroughly, data collected through designed questionnaire include:-Socio-demographic characters, antenatal clinic follow up, previous C/S, variables affect success of VBAC and outcome of current pregnancy. Results: Among 342 pregnant women involved in this study, (67.3%) had successful VBAC, while (23.7%) had emergency caesarean section. The majority of women 286 (83.6%) were counseled for VBAC. Fetal distress was the most common cause for previous C/S 134 (39.2%) and failure to progress account for 53 (15.5%). Factors affecting success rate of the VBAC in this study were; BMI between 25-30 was (67.8%), previous successful VBAC was (54.3) % and birth weight between 3.6-4 kg was (56.5%). Women who had an emergency caesarean section in their first birth also had a lower VBAC success rate, particularly those with a history of failure to progress as main indication for the primary caesarean section. Conclusion: This study reported (67.3%) success rate of VBAC and concludes a significant increase in the successful rate of VBAC associated with accurate prior ante natal care, meticulous counseling, prior vaginal delivery, previous success VBAC, BMI between 25-30 and maternal age <35 years.