| Evaluation of the labor curve in nulliparous Japanese women. | |
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MedLine Citation:
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PMID: 20494329 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Ritsuko Suzuki; Shigeko Horiuchi; Hiroshi Ohtsu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-05-21 |
Journal Detail:
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Title: American journal of obstetrics and gynecology Volume: 203 ISSN: 1097-6868 ISO Abbreviation: Am. J. Obstet. Gynecol. Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-06 Completed Date: 2010-09-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370476 Medline TA: Am J Obstet Gynecol Country: United States |
Other Details:
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Languages: eng Pagination: 226.e1-6 Citation Subset: AIM; IM |
Copyright Information:
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Copyright 2010 Mosby, Inc. All rights reserved. |
Affiliation:
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Department of Nursing, Kyorin University Hospital, Tokyo, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Drug Utilization Extraction, Obstetrical / statistics & numerical data Female Humans Japan Labor, Obstetric* Maternal Age Oxytocics / therapeutic use Oxytocin / therapeutic use Parity* Pregnancy Retrospective Studies Time Factors Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Oxytocics; 50-56-6/Oxytocin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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