Relationship Between Oral Amiodarone and Inappropriate Therapy From an Implantable Cardioverter Defibrillator

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biBackground:/i/b This study evaluated the efficacy of amiodarone for avoiding inappropriate therapies by implantable cardioverter defibrillators (ICDs). biMethods and Results:/i/b A total of 232 patients with structural heart disease (58±13 years; 78% males) who underwent an initial ICD implantation were retrospectively investigated to compare baseline characteristics and event rates of inappropriate ICD therapy delivery between patients with oral amiodarone therapy (amiodarone group, n=116) and those without (non-amiodarone group, n=116). During a mean follow-up of 29±21 months, inappropriate therapies occurred less frequently in the amiodarone group than in the non-amiodarone group (12% vs 27%, P=0.0068). As a cause of inappropriate ICD therapy, only atrial fibrillation (AF) significantly differed between the groups (3% vs 12%, P=0.01). The results of multivariate logistic regression analysis showed that amiodarone therapy (odds ratio (OR) 0.38, 95% confidence interval (CI) 0.19-0.77, P=0.0073) and no history of spontaneous AF (OR 0.27, 95%CI 0.13-0.57, P=0.0007) were independent predictors of a lower risk of inappropriate ICD therapy. biConclusions:/i/b In the present group of ICD patients with structural heart disease, inappropriate therapy delivery occurred predominantly in those with spontaneous AF and/or without amiodarone. (iCirc J/i 2010; b74:/b 1302 - 1307)br
社団法人　日本循環器学会の論文
2010-06-25