Effect of vaginal delivery on adverse pregnancy outcomes after cesarean section in scar uterus

The purpose of this study was to investigate the impact of vaginal delivery on adverse pregnancy outcomes after cesarean section for the cicatricial uterus. Eighty patients with scarred uterus after cesarean section admitted to our hospital from October 2019 to May 2021 were selected for the study. Among them, 44 cases were eligible for vaginal delivery. Thirty-eight cases of cesarean delivery were selected as the control group and 42 cases of vaginal delivery were selected as the observation group according to the mode of delivery. Baseline data, 24-h blood loss, length of hospital stay, hospital costs, 5-minute Apger score, and adverse pregnancy outcomes were compared between the two groups. When comparing the age, gestational age, number of pregnancies, and duration of cesarean delivery between the two groups (t = 1.333, 0.989, 0.597, 0.752, P > 0.05), the scar thickness in the observation group was higher than that in the control group. The 24-h postpartum bleeding and hospitalization cost was lower in the observation group than in the control group, the hospitalization time was shorter than in the control group, and the 5-minute Apger score was higher than in the control group (t = 21.744, 15.029, 11.524, 7.342, P < 0.05). The incidence of maternal and neonatal complications was compared between the two groups (23.68% vs 7.14%, 7.89% vs 0.00%, correction 2 = 1.083, 1.605, P > 0.05). The incidence of adverse pregnancy outcomes was 7.14% in the observation group, which was significantly lower than the 31.57% in the control group. The difference was statistically significant (correction 2 = 4.060, P < 0.05).