title: Outcomes of Operative Vaginal Delivery during Trial of Labor after Cesarean Delivery.
abstract: ObjectiveThe objective of this study is to determine the maternal and neonatal morbidity associated with attempting operative vaginal delivery (OVD) compared with the alternative of a laboring repeat cesarean delivery (LRCD) in women attempting a trial of labor after cesarean delivery (TOLAC).MethodsThis is a secondary analysis of a multicenter prospective study designed to assess perinatal outcomes of OVD in women with a prior uterine scar. The study includes women who attempted TOLAC and reached +2 station with a fully dilated cervix. Composites on neonatal and maternal morbidity were compared between women in whom OVD was attempted and those who underwent LRCD by fitting multivariate logistic regression models.ResultsIn total, 6,489 women attempting TOLAC reached 2+ station with a fully dilated cervix. Of these, 5,640 (86.9%) had a spontaneous vaginal delivery, 762 (11.7%) underwent attempted OVD, and 87 (1.3%) had an LRCD. Compared with attempting OVD, LRCD was associated with greater neonatal morbidity (odds ratio [OR]: 2.41; 95% confidence interval [CI]: 1.13-5.15) and less maternal morbidity (OR: 0.28; 95% CI: 0.14-0.55). Maternal morbidity of OVD is driven by perineal injury.ConclusionIn laboring women with a previous uterine scar, attempting OVD is associated with greater maternal and less neonatal morbidity than LRCD.
authors.affiliation: Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York.
authors.forename: Clifton O
authors.initials: CO
authors.lastname: Brock
authors.affiliation: Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York.
authors.forename: Shravya
authors.initials: S
authors.lastname: Govindappagari
authors.affiliation: Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York.
authors.forename: Cynthia
authors.initials: C
authors.lastname: Gyamfi-Bannerman
mesh_terms: D000328:Adult; D001720:Birth Injuries / Q000209:etiology / Q000517:prevention & control; D002921:Cicatrix / Q000209:etiology / Q000503:physiopathology; D036861:Delivery, Obstetric / Q000009:adverse effects / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D009518:New York / Q000453:epidemiology; D007744:Obstetric Labor Complications / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D010502:Perineum / Q000293:injuries*; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology; D011446:Prospective Studies; D014599:Uterus / Q000473:pathology / Q000503:physiopathology; D016064:Vaginal Birth after Cesarean / Q000009:adverse effects / Q000379:methods / Q000706:statistics & numerical data