Journal
CIRCULATION
Volume 119, Issue 8, Pages 1078-U30Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCULATIONAHA.108.793463
Keywords
registries; electrophysiology; morbidity; women
Funding
- National Cardiovascular Data Registry
- American Heart Association Pharmaceutical Roundtable Award [0670017N]
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Background Women are at higher risk than men for adverse events with certain invasive cardiac procedures. Our objective was to compare rates of in-hospital adverse events in men and women receiving implantable cardioverter-defibrillator (ICD) therapy in community practice. Methods and Results Using the National Cardiovascular Data Registry ICD Registry, we identified patients undergoing first-time ICD implantation between January 2006 and December 2007. Outcomes included in-hospital adverse events after ICD implantation. Multivariable analysis assessed the association between gender and in-hospital adverse events, with adjustment for demographic, clinical, procedural, physician, and hospital characteristics. Of 161 470 patients, 73% were male, and 27% were female. Women were more likely to have a history of heart failure (81% versus 77%, P < 0.01), worse New York Heart Association functional status (57% versus 50% in class III and IV, P < 0.01), and nonischemic cardiomyopathy (44% versus 27%, P < 0.01) and were more likely to receive biventricular ICDs (39% versus 34%, P < 0.01). In unadjusted analyses, women were more likely to experience any adverse event (4.4% versus 3.3%, P < 0.001) and major adverse events (2.0% versus 1.1%, P < 0.001). In multivariable models, women had a significantly higher risk of any adverse event (OR 1.32, 95% CI 1.24 to 1.39) and major adverse events (OR 1.71, 95% CI 1.57 to 1.86). Conclusions Women are more likely than men to have in-hospital adverse events related to ICD implantation. Efforts are needed to understand the reasons for higher ICD implantation-related adverse event rates in women and to develop strategies to reduce the risk of these events. (Circulation. 2009; 119: 1078-1084.)
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