Second, left ventricular hypertrophy was not severe Third, family history of sudden death, a significant risk factor for sudden death, especially in the young, was low. Fourth, all symptomatic patients and those with ventricular arrhythmias were receiving treatment with ^-adrenergic receptor blockers, verapamil or amiodarone, and this may have influenced mortality. Finally, although the results of this study are in accordance with those recently reported from Italy, the Netherlands, the United States, Israel, and Brazil, the possibility of ethnic genetic factors cannot be excluded. Indeed, the different morphologic expression of hypertrophic cardiomyopathy in North American and European patients is remarkable. The comparison of clinical, morphologic, and prognostic features in hypertrophic cardiomyopathy between Japanese and Western patients is also striking. These differences may arise due to different causative genes, environmental factors, or other factors (modifier genes) influencing the final clinical expression and mortality. buy claritin online

Syncope, functional class, and ventricular arrhythmias were predictors of a poor outcome in this study. These findings are in accordance with those of previous reports.
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