Efficiencies and Complications of Dual Chamber versus Single Chamber Implantable Cardioverter Defibrillators in Secondary Sudden Cardiac Death Prevention: A Meta-analysis

Heart, Lung & Circulation
Zuo-Ying HuShao-Liang Chen

Abstract

Dual chamber implantable cardioverter defibrillators (ICDs) are considered to have better clinical outcomes than single chamber ICDs, however, an individual trial may not have sufficient power to prove it. This meta-analysis aimed to compare clinical outcomes of dual chamber ICDs (DC-ICDs) with single chamber ICDs (SC-ICDs) in secondary sudden cardiac death (SCD) prevention. We searched Medline, the Cochrane Library, and other internet sources, without language or date restrictions for articles comparing clinical outcomes between DC-ICDs and SC-ICDs. Studies were selected for inclusion based on the following criteria: Randomised controlled trial.; Controlled design was used to compare SC-ICDs and DC-ICDs; Retrospective study if the survival analysis was performed. Efficacy endpoints were mortality, appropriate therapy, inappropriate detection of SVT, inappropriate therapy. Safety endpoints were lead-related complication and all complications. Relative risk (RR) or odds ratios (ORs) with 95% confidence intervals (CI) were calculated, and a χ2-based test of homogeneity was performed. We identified nine trials (n=2594) with a weighted mean follow-up of 18.9 months. Compared with DC-ICDs, SC-ICDs were associated with a significant ...Continue Reading

References

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Citations

Mar 13, 2018·Deutsches Ärzteblatt International·Frank EdelmannStefan Störk

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