Abstract

Objective. To reveal factors influencing the prospect for vaginal delivery in very prolonged pregnancy.Material and methods. Thirty-six nulliparae and 14 multiparae delivered beyond 43 weeks followed a routine surveillance protocol. Labor was induced on strict indications (n=11; oligohydramnios, large fetus, hypertension) and on ‘soft’ indications (n=24; favorable cervix, emotional stress).Statistics. Receiver operating characteristic curves were obtained for maternal stature and birthweight with regard to mode of delivery. Student's unpaired r-test, Mann-Whitney U test, and Fisher's exact test were used with a two-tailed p 50% of cases managed expectantly. All multiparae had nonoperative vaginal deliveries. Of nulliparae, 89% delivered vaginally if spontaneous labor and 56% if induced. Failure to progress was the most common reason for operative delivery. A maternal height of 160 cm, a very unripe cervix,...

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