Trial of Labor After Cesarean Section Among Women with Unique Lower Segment Scarred Uterus and Fetal Weight >3500 g: Prognostic Factors for a Safe Vaginal Delivery

Objective To evaluate outcome of trial of labor after cesarean section (TOLAC) with fetal weight >3500 g. Materials and Methods This retrospective descriptive study was carried out between March 1, 2012, and February 28, 2015. Medical and obstetrical records of women with birth weight (BW) >3500 g admitted in the labor ward with advanced labor or admitted in early labor but with underestimated fetal weight >3500 g were analyzed. Main variables analyzed included maternal parity, vaginal delivery prior to TOLAC, the BW and the integrity of the uterine scar. Results Mean BW was 3789.3 g. Out of 36 women, 75 % had a successful TOLAC. Women who delivered vaginally before TOLAC had a higher success rate than women who never delivered vaginally (94.1 vs. 63.1 %, P 3500 g can be observed among women, especially among those admitted in advanced labor or with successful vaginal delivery prior to the current TOLAC.