Labour Induction with Intracervical Prostaglandin E2 Gel and Intravenous Oxytocin in Women with a Very Unfavourable Cervix

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Abstract
Summary: Two hundred and sixty‐three gravid women having a very unfavourable cervix and requiring labour induction were studied; 80 primigravidas and 56 multigravidas were administered a single dose of intracervical prostaglandin E2 gel (PGE2) and 72 primigravidas and 55 multigravidas had labour induced with an escalating oxytocin infusion. After 24 hours 73.8% of the primigravidas induced with PGE2 had delivered vaginally compared with only 52.8% of those induced with oxytocin. The incidence of Caesarean sections was very high (47.2%) in the primigravidas receiving an oxytocin infusion. In the multigravidas, there was no significant difference in the proportion of women who had delivered vaginally within 24 hours and in the percentage of Caesarean sections in the 2 induction groups. After 12 hours, a significant increase in the cervical score was seen in all women receiving PGE2 intracervically. The fetal outcome and perinatal mortality were not affected by the mode of induction. Intracervical PGE2 appears to be more effective than oxytocin in inducing labour in primigravidas having an unfavourable cervix, whereas in multigravidas, both methods appears to be equally effective.

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