Idiopathic restrictive cardiomyopathy in children is caused by mutations in cardiac sarcomere protein genes

Abstract excerpt

BACKGROUND: Restrictive cardiomyopathy (RCM) is rare in childhood, but has a grave prognosis. The cause of disease in most cases is unknown. OBJECTIVE: To determine the prevalence of sarcomere protein gene mutations in children with idiopathic RCM. METHODS: Twelve patients (9 female, mean age 5.1 years) with idiopathic RCM referred between 1991 and August 2006 underwent detailed clinical and genetic evaluation....

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