Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.

<h4>Background</h4>Some but not all prior studies have shown that women receiving a primary prophylactic implantable cardioverter defibrillator (ICD) have a lower risk of death and appropriate shocks than men.<h4>Purpose</h4>To evaluate the effect of gender on the risk of app...

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Main Authors: David Conen, Barbora Arendacká, Christian Röver, Leonard Bergau, Pascal Munoz, Sofieke Wijers, Christian Sticherling, Markus Zabel, Tim Friede
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0162756
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author David Conen
Barbora Arendacká
Christian Röver
Leonard Bergau
Pascal Munoz
Sofieke Wijers
Christian Sticherling
Markus Zabel
Tim Friede
author_facet David Conen
Barbora Arendacká
Christian Röver
Leonard Bergau
Pascal Munoz
Sofieke Wijers
Christian Sticherling
Markus Zabel
Tim Friede
author_sort David Conen
collection DOAJ
description <h4>Background</h4>Some but not all prior studies have shown that women receiving a primary prophylactic implantable cardioverter defibrillator (ICD) have a lower risk of death and appropriate shocks than men.<h4>Purpose</h4>To evaluate the effect of gender on the risk of appropriate shock, all-cause mortality and inappropriate shock in contemporary studies of patients receiving a primary prophylactic ICD.<h4>Data source</h4>PubMed, LIVIVO, Cochrane CENTRAL between 2010 and 2016.<h4>Study selection</h4>Studies providing at least 1 gender-specific risk estimate for the outcomes of interest.<h4>Data extraction</h4>Abstracts were screened independently for potentially eligible studies for inclusion. Thereby each abstract was reviewed by at least two authors.<h4>Data synthesis</h4>Out of 680 abstracts retained by our search strategy, 20 studies including 46'657 patients had gender-specific information on at least one of the relevant endpoints. Mean age across the individual studies varied between 58 and 69 years. The proportion of women enrolled ranged from 10% to 30%. Across 6 available studies, women had a significantly lower risk of first appropriate shock compared with men (pooled multivariable adjusted hazard ratio 0.62 (95% CI [0.44; 0.88]). Across 14 studies reporting multivariable adjusted gender-specific hazard ratio estimates for all-cause mortality, women had a lower risk of death than men (pooled hazard ratio 0.75 (95% CI [0.66; 0.86]). There was no statistically significant difference for the incidence of first inappropriate shocks (3 studies, pooled hazard ratio 0.99 (95% CI [0.56; 1.73]).<h4>Limitations</h4>Individual patient data were not available for most studies.<h4>Conclusion</h4>In this large contemporary meta-analysis, women had a significantly lower risk of appropriate shocks and death than men, but a similar risk of inappropriate shocks. These data may help to select patients who benefit from primary prophylactic ICD implantation.
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spelling doaj-art-934950141bde4adba207752be9ae906b2025-08-20T03:29:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01119e016275610.1371/journal.pone.0162756Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.David ConenBarbora ArendackáChristian RöverLeonard BergauPascal MunozSofieke WijersChristian SticherlingMarkus ZabelTim Friede<h4>Background</h4>Some but not all prior studies have shown that women receiving a primary prophylactic implantable cardioverter defibrillator (ICD) have a lower risk of death and appropriate shocks than men.<h4>Purpose</h4>To evaluate the effect of gender on the risk of appropriate shock, all-cause mortality and inappropriate shock in contemporary studies of patients receiving a primary prophylactic ICD.<h4>Data source</h4>PubMed, LIVIVO, Cochrane CENTRAL between 2010 and 2016.<h4>Study selection</h4>Studies providing at least 1 gender-specific risk estimate for the outcomes of interest.<h4>Data extraction</h4>Abstracts were screened independently for potentially eligible studies for inclusion. Thereby each abstract was reviewed by at least two authors.<h4>Data synthesis</h4>Out of 680 abstracts retained by our search strategy, 20 studies including 46'657 patients had gender-specific information on at least one of the relevant endpoints. Mean age across the individual studies varied between 58 and 69 years. The proportion of women enrolled ranged from 10% to 30%. Across 6 available studies, women had a significantly lower risk of first appropriate shock compared with men (pooled multivariable adjusted hazard ratio 0.62 (95% CI [0.44; 0.88]). Across 14 studies reporting multivariable adjusted gender-specific hazard ratio estimates for all-cause mortality, women had a lower risk of death than men (pooled hazard ratio 0.75 (95% CI [0.66; 0.86]). There was no statistically significant difference for the incidence of first inappropriate shocks (3 studies, pooled hazard ratio 0.99 (95% CI [0.56; 1.73]).<h4>Limitations</h4>Individual patient data were not available for most studies.<h4>Conclusion</h4>In this large contemporary meta-analysis, women had a significantly lower risk of appropriate shocks and death than men, but a similar risk of inappropriate shocks. These data may help to select patients who benefit from primary prophylactic ICD implantation.https://doi.org/10.1371/journal.pone.0162756
spellingShingle David Conen
Barbora Arendacká
Christian Röver
Leonard Bergau
Pascal Munoz
Sofieke Wijers
Christian Sticherling
Markus Zabel
Tim Friede
Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
PLoS ONE
title Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
title_full Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
title_fullStr Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
title_full_unstemmed Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
title_short Gender Differences in Appropriate Shocks and Mortality among Patients with Primary Prophylactic Implantable Cardioverter-Defibrillators: Systematic Review and Meta-Analysis.
title_sort gender differences in appropriate shocks and mortality among patients with primary prophylactic implantable cardioverter defibrillators systematic review and meta analysis
url https://doi.org/10.1371/journal.pone.0162756
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