Document Detail

Effect of collaterals on deaths and re-infarctions in patients with coronary artery disease: a meta-analysis.
MedLine Citation:
PMID:  23208154     Owner:  NLM     Status:  PubMed-not-MEDLINE    
BACKGROUND: It is generally believed that there is a beneficial effect of collaterals on death and re-infarction statistics in patients with coronary artery disease (CAD) but studies to date are small and inconsistent.
OBJECTIVE: To meta-analyse the studies published in this field in order to obtain more powerful information.
METHODS: We searched Medline and major journals (2000 to 2011) for studies evaluating the effect of coronary collaterals on mortality. Publication bias, lack of heterogeneity, and lack of robustness were assessed using the standard procedures for such purposes.
RESULTS: A total of 10 studies describing mortality, enrolling 6791 participants, were included in this analysis. In patients with collateralisation a significant relation with reduced mortality was seen compared with those without collateralisation, at an odds ratio of 0.47, p < 0.0001, and a reduction in deaths and re-infarctions at 0.54, p < 0.0001. Some publication bias, some heterogeneity and some lack of robustness were demonstrated. A meta-regression with the odds ratios of the presence of traditional atherosclerotic risk factors as predictors and the odds ratios of mortality and the composite deaths and re-infarctions as outcome showed no relationships.
CONCLUSIONS: In CAD patients from the post-percutaneous coronary intervention era the presence of collaterals reduced mortality by 0.47 (p < 0.0001) and deaths and re-infarctions by 0.54 (p < 0.0001). Furthermore, in the present meta-data, the atherosclerotic risk factors were no more present in patients with collaterals than they were in those without.
S Akin; T Yetgin; J J Brugts; A Dirkali; F Zijlstra; T J Cleophas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation     Volume:  21     ISSN:  1568-5888     ISO Abbreviation:  Neth Heart J     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-22     Completed Date:  2013-02-25     Revised Date:  2013-04-15    
Medline Journal Info:
Nlm Unique ID:  101095458     Medline TA:  Neth Heart J     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  146-51     Citation Subset:  -    
Department of Cardiology, Erasmus Medical Center, Rotterdam, the Netherlands.
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