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著者: Ritsuko Suzuki, Shigeko Horiuchi, Hiroshi Ohtsu
雑誌名: Am J Obstet Gynecol. 2010 Sep;203(3):226.e1-6. doi: 10.1016/j.ajog.2010.04.014. Epub 2010 May 21.
Abstract/Text
OBJECTIVE: We sought to compare Japanese nulliparous labor progression with Friedman's classic 1955 curve and Zhang's 2002 curve.
STUDY DESIGN: We developed a labor curve using retrospective record reviews of 2369 Japanese nulliparas, at term, spontaneous labor onset and singleton vertex deliveries of normal birth weight infants.
RESULTS: The new Japanese Suzuki-Horiuchi labor curve with slower cervical dilation in the active phase was like Zhang's and differed from Friedman's curve. Labor length was approximately 5 hours occurring between 4-10 cm compared with Friedman's 2.5 hours and Zhang's 5.5 hours. Even at 10-cm dilation, labor lasted >2 hours at the 95th percentile of time interval.
CONCLUSION: Similar to Zhang's curve, the Suzuki-Horiuchi curve was smooth and more gradually sloped than Friedman's curve. Appraise "arrested or protracted labor" with these slower labor curves in mind using Friedman's curve cautiously.
Copyright 2010 Mosby, Inc. All rights reserved.
PMID 20494329 Am J Obstet Gynecol. 2010 Sep;203(3):226.e1-6. doi: 10.1016/j.ajog.2010.04.014. Epub 2010 May 21.
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