Risk factors for sudden death in hypertrophic cardiomyopathy (HCM)

Hypetrophic Cardiomyopathy [Source]

Hypertrophic cardiomyopathy (HCM) is the commonest form of cardiomyopathy, with a prevalence 100 per 100,000.

Genetic
It is a genetic disorder with autosomal-dominant transmission, a high degree of penetrance and variable expression.

Clinical features
Symptoms and signs are similar to those of aortic stenosis, except that the character of the pulse is jerky in HCM.

Hypertrophic cardiomyopathy

Hypertrophic cardiomyopathy is the single, most common cause of sudden death in young athletes. The majority of patients are asymptomatic or only mildly symptomatic. Syncope and sudden death are associated with severe exertion and competitive sports, which should be avoided in patients with hypertrophic cardiomyopathy. The most common symptom is dyspnoea.