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ORIGINAL RESEARCH |
From the Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, Mississippi and Spartanburg Regional Medical Center, Spartanburg, South Carolina.
Address reprint requests to: Suneet P. Chauhan, MD, Division of Maternal-Fetal Medicine, Regional Womens Health Care, 853 North Church Street, Suite 610, Spartanburg, SC 29303; E-mail: mfmchauhan{at}aol.com.
OBJECTIVE: To describe maternal and perinatal outcomes after a prior classic cesarean delivery.
METHODS: A retrospective review was performed including all patients from 19902000 whose most recent pregnancy was preceded by classic cesarean delivery.
RESULTS: During the 11-year period, there were 37,863 deliveries and 157 patients (0.4%) underwent classic cesarean operations. In the next pregnancy, one case of uterine rupture (0.6%, 95% confidence interval 0.1, 3.5) occurred at 29 weeks without preterm labor and resulted in fetal death. The prevalence of asymptomatic dehiscence was 9% (95% confidence interval 5, 15). There was no significant difference between patients with uterine dehiscence (n = 15) and patients with intact uteri (n = 141) with regard to maternal demographics, duration of labor, cervical dilatation at time of surgery, transfusion of packed red cells, bowel injury, postpartum endometritis, wound breakdown, thrombophlebitis, or umbilical arterial pH less than 7.00 (P > .05). Duration of labor, cervical dilatation, and gestational age at repeat cesarean delivery were poor predictors for uterine rupture or dehiscence.
CONCLUSION: Among patients with prior classic cesarean delivery, uterine rupture and dehiscence are neither predictable nor preventable. One in four patients will experience some form of maternal morbidity. Uterine rupture, although infrequent, can be fatal to the fetus. Uterine dehiscence, however, does not increase neonatal or peripartum maternal morbidity.
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