Document Detail


Ultrasound assessment of cervical length in prolonged pregnancy: prediction of spontaneous onset of labor and successful vaginal delivery.
MedLine Citation:
PMID:  18260158     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To evaluate the usefulness of sonographic assessment of cervical length in the prediction of spontaneous onset of labor and of vaginal delivery. METHODS: Two hundred and six women who attended a dedicated postdates clinic at 41 + 3 weeks of pregnancy and agreed to the assessment of cervical length using transvaginal ultrasound imaging were included in the study. Those who had not delivered at 42 weeks were offered induction of labor. The labor details were recorded prospectively, and the onset of spontaneous labor and mode of delivery were correlated with cervical length data. RESULTS: Women who underwent spontaneous onset of labor (n = 112) had a significantly shorter cervical length (mean (SD) 25.0 (8.3) mm) than had women whose labor was induced (n = 67; mean (SD) 29.7 (8.5) mm). Logistic regression analysis showed that cervical length was an independent predictor of the likelihood of spontaneous labor in nulliparous women, and of vaginal delivery in both nulliparous and parous women. Parity had no independent effect on the onset of spontaneous labor, but was an independent predictor of the likelihood of vaginal delivery. CONCLUSIONS: Sonographic assessment of cervical length is a significant independent predictor of the likelihood of the onset of spontaneous labor in nulliparous women, and of successful vaginal delivery in both nulliparous and parous women with prolonged pregnancy.
Authors:
P Vankayalapati; F Sethna; N Roberts; N Ngeh; B Thilaganathan; A Bhide
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  31     ISSN:  1469-0705     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-03-05     Completed Date:  2008-08-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  328-31     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2008 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Fetal Medicine Unit, St. George's Hospital, London, UK.
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MeSH Terms
Descriptor/Qualifier:
Cervical Length Measurement / methods*
Cervical Ripening
Cervix Uteri / ultrasonography*
Delivery, Obstetric*
Female
Gestational Age
Humans
Labor Onset
Logistic Models
Parity
Pregnancy
Pregnancy, Prolonged / ultrasonography*
Probability
Prospective Studies
ROC Curve
Ultrasonography, Doppler / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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