Results of delivery in umbilical cord prolapse

To review the peripartum clinical course of patients whose pregnancies were complicated by umbilical cord prolapse and to evaluate its impact on neonatal outcome.

All cases of cord prolapse managed in King Khalid University Hospital, Riyadh, Kingdom of Saudi Arabia between 1990-2000 were identified. There were 111 patients identified among 55,789 deliveries. Each maternal and fetal chart was reviewed for parity, age, gestational age, fetal presentation, status of membranes, time from diagnosis to delivery, mode of delivery, baby weight, Apgar scores and cord blood hydrogen ion concentration (PH). The data collected was analyzed using Gold Stat Software Package, and statistical significance was established by using analysis of variance and Chi-square.

The incidence of cord prolapse was found to be one in 503 cases (1.99 per thousand deliveries) in our study. Seventy-two (64.9%) of the fetuses were in vertex presentation and 39 (35.1%) were non-vertex, including breech and transverse presentations. Ninety one point nine percent were singletons and 8% were twins. At the time of diagnosis in 15 (13.5%) membranes were artificially ruptured and in 96 (86.5%), they were spontaneously ruptured. The cervix was fully dilated in 10% and minimally dilated in 100 (90%). Regarding mode of delivery, 7 (6.5%) were vaginal deliveries and 104 (93.5%) were cesarean sections. The interval from diagnosis to delivery ranged from 10 minutes to >20 minutes. Six (5.4%) of the babies were delivered in 10 minutes, 49 (44.1%) in 20 minutes and 56 (50.5%) in more than 20 minutes. Apgar score was less than 7 in 44 (39.6%) of the babies at one minute and in 5 (4.5%) of the babies at 5 minutes. Cord PH was less than 7 in 2 (1.8%) cases and more than 7 in 109 (98.2%). Forty-one (36.9%) of the babies were admitted in neonatal intensive care unit. There was no perinatal mortality in our study group.

In our review, we found that cord prolapse is not associated with higher rates of perinatal mortality or morbidity and our study supports clinical management of cord prolapse by cesarean section. The interval from diagnosis to delivery may not be the only determinant of neonatal outcome.