Why the study?
Does the risk of serious cardiac events requiring secondary prevention ICD implantation differ between apical and non-apical hypertrophic cardiomyopathy?
Does the risk of serious cardiac events requiring secondary prevention ICD implantation differ between apical and non-apical hypertrophic cardiomyopathy?
Apical HCM may not be as benign as previously assumed, with patients facing a substantial risk for serious cardiac events comparable to non-apical HCM, warranting consideration for ICD implantation in high-risk cases.
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Apical HCM may confer similar arrhythmic risk as non-apical forms; leaves open whether dedicated risk stratification is warranted.
This study demonstrated that apical hypertrophic cardiomyopathy (HCM) accounted for 15.6% of patients who underwent implantable cardioverter-defibrillator (ICD) implantation.The proportion of ICD implantations for secondary prevention did not differ significantly between apical and non-apical HCM subtypes.These findings suggest that the clinical course of apical HCM may not be as benign as previously assumed, and that patients with apical HCM remain at a substantial risk for serious cardiac events.Accordingly, ICD implantation should be considered in high-risk patients with apical HCM.
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Choi et al. (2025) studied this question.
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