Document Detail


Cervical stitch (cerclage) for preventing pregnancy loss: individual patient data meta-analysis.
MedLine Citation:
PMID:  17903224     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Several observational studies have claimed high success rates for cerclage in women with cervical insufficiency. A recent Cochrane review found no conclusive evidence of benefit, although significant heterogeneity was present for some of the important clinical outcomes. OBJECTIVES: We undertook an individual patient data (IPD) meta-analysis to examine effect of cerclage on neonatal and maternal outcomes. In an attempt to explain the heterogeneity, we investigated whether obstetric factors including multiple gestation are associated with effectiveness. SEARCH STRATEGY: Search methods described in the original Cochrane review were adopted and updated to December 2005. SELECTION CRITERIA: This IPD systematic review and meta-analysis was of randomised trials comparing cervical cerclage during pregnancy with expectant management or no cerclage in women with confirmed or suspected as having cervical insufficiency. ANALYSIS: Multilevel logistic regression models stratified by trial with random treatment effects were fitted to investigate the impact of obstetric factors and multiple gestation on treatment effect. Primary outcome measures were pregnancy loss or death before discharge from hospital and absence of neonatal morbidity. MAIN RESULTS: The meta-analysis included seven trials and 2091 randomised women. In singleton pregnancies, the reduction in pregnancy loss or death before discharge from hospital following cerclage failed to reach statistical significance (OR 0.81; 95% CI 0.60-1.10). Cerclage was found to have a detrimental effect on the outcome of pregnancy loss or death before discharge from hospital in multiple gestations (OR 5.88; 95% CI 1.14-30.19), although only a small number of multiple pregnancies were included in the analysis. Neither indication for cerclage nor obstetric history was found to have a statistically significant impact on the effect of cerclage. CONCLUSIONS: Cerclage may reduce the risk of pregnancy loss or neonatal death before discharge from hospital in singleton pregnancies thought to be at risk of preterm birth, but further large trials are needed to elucidate the risk-benefit ratio precisely. Cerclage in multiple pregnancies should be avoided. The efficacy of cerclage was not influenced by either indication for cerclage or mother's obstetric history.
Authors:
A L Jorgensen; Z Alfirevic; C Tudur Smith; P R Williamson;
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't; Review     Date:  2007-09-27
Journal Detail:
Title:  BJOG : an international journal of obstetrics and gynaecology     Volume:  114     ISSN:  1471-0528     ISO Abbreviation:  BJOG     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-12     Completed Date:  2008-01-15     Revised Date:  2008-06-06    
Medline Journal Info:
Nlm Unique ID:  100935741     Medline TA:  BJOG     Country:  England    
Other Details:
Languages:  eng     Pagination:  1460-76     Citation Subset:  AIM; IM    
Affiliation:
Centre for Medical Statistics and Health Evaluation, University of Liverpool, Liverpool, UK. a.l.jorgensen@liverpool.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Abortion, Spontaneous / prevention & control*
Cerclage, Cervical / statistics & numerical data*
Female
Humans
Infant Mortality
Infant, Newborn
Pregnancy
Pregnancy Outcome
Pregnancy, Multiple / statistics & numerical data
Prenatal Care / statistics & numerical data
Randomized Controlled Trials as Topic
Comments/Corrections
Comment In:
BJOG. 2008 May;115(6):798; author reply 789-90   [PMID:  18410668 ]

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


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