American journal of obstetrics and gynecology
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Am. J. Obstet. Gynecol. · Jul 1994
Low concentrations of vaginal fetal fibronectin as a predictor of deliveries occurring after 41 weeks.
This study sought to determine whether low concentrations of fetal fibronectin in the cervical and vaginal secretions of patients at 39 weeks' gestation predicted pregnancies progressing beyond 41 weeks' gestation. ⋯ A vaginal fetal fibronectin value > or = 60 ng/ml at 39 weeks' gestation is predictive of delivery within 10 days, whereas values < 60 ng/ml identify 95% of pregnancies progressing past 41 weeks' gestation. This data may allow for the prediction of postdates pregnancies, thus facilitating appropriate obstetric interventions.