山梨医科大学雑誌　第8巻1号　015-022(1993)

Induction of Labor at 41 Weeks of Gestation in Uncomplicated
Prolonged Pregnancy

Takehiko YASIMIZU, Yuji NAKAMURA, and Junzo KATO

Abstract: A management policy for prolonged pregnancy using conventional antepartum fetal testing and routine induction of labor at 290 days (41 weeks and 3 days) of gestation was evaluated by a 3-year prospective investigation of uncomplicated pregnancies with well-defined gestational age. In comparison with the term group, a significantly higher incidence of abnormal biophysical state and postmaturity were demonstrated in prolonged pregnancy. Although, most of the substantial maternal and fetal risks observed in prolonged pregnancy were caused by a higher proportion of induction, the total incidence of cesarean section and the incidence of cesarean section due to fetal distress as well as a low 5-minute Apgar score in prolonged pregnancy were lower than those reported previously. From both the medical and social points of view, induction of labor and delivery by 42 weeks of gestation appears to be a reasonable management for Japanese patients with well-established gestational age.

Key words: Prolonged pregnancy, Routine induction, Maternal and neonatal outcome, Japan




本文は、編集委員会の意向によりインターネットには公開しておりません。図書館等でご覧ください。

Texts are not availavle on Internet.



目次・Contentsに戻る