Progression from hypertrophic cardiomyopathy to dilated cardiomyopathy.
The incidence of hypertrophic cardiomyopathy progressing to dilated cardiomyopathy is rare. A patient diagnosed at age 22 and followed for 24 years who progressed to a dilated cardiomyopathy with severe congestive heart failure is reported. Left ventricular dilatation in hypertrophic cardiomyopathy may be due to a complication of surgery, beta-blocker therapy, or myocardial infarction. It may also represent the natural history in a subset of patients with hypertrophic cardiomyopathy.
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D000328:Adult; D002311:Cardiomyopathy, Dilated / Q000209:etiology*; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications*; D004562:Electrocardiography; D006333:Heart Failure / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged