Document Detail


How reliable is the determination of cervical dilation? Comparison of vaginal examination with spatial position-tracking ruler.
MedLine Citation:
PMID:  19318150     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to evaluate the accuracy of clinical measurement of cervical dilation with a position-tracking system during vaginal examination. STUDY DESIGN: This prospective study that was conducted in Poissy, France, Brooklyn, NY, and Haifa, Israel, included 333 measurements that were performed in 188 women with term singleton vertex uncomplicated pregnancies during the active stage of labor. Ninety measurements with clinical diagnosis of full dilation were excluded from analysis. Measurements were performed with a sensor attached to the midwife's index fingertip and a position-tracking system that was based on a low magnetic field. Evaluations were done when cervical examinations were clinically indicated. RESULTS: Results were similar in all centers. Mean error was 10.2 +/- 8.4 mm and ranged from 7.5 +/- 7.3 mm, when cervical dilation was > 8 cm, to 12.5 +/- 8.7 mm when cervical dilation was between 6.1 and 8 cm. CONCLUSION: This first evaluation of cervical assessment accuracy during vaginal examination with a position-tracking system shows limited precision.
Authors:
Jacky Nizard; Shoshana Haberman; Yoav Paltieli; Ron Gonen; Gonen Ohel; Diane Nicholson; Yves Ville
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  200     ISSN:  1097-6868     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-03-25     Completed Date:  2009-04-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  402.e1-4     Citation Subset:  AIM; IM    
Affiliation:
Department of Obstetrics and Gynecology, CHI Poissy Saint Germain, Université de Versailles, Saint-Quentin-en-Yvelines, France.
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Humans
Labor Stage, First*
Physical Examination / methods
Pregnancy
Prospective Studies
Reproducibility of Results
Vagina

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


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