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Hypertrophic cardiomyopathy (HCM) is a myocardial disorder characterized by unexplained ventricular hypertrophy and myofibrillar disarray, with a prevalence of about 0.2% in general population. HCM is associated with gene abnormalities. Nearly 200 mutations have been described in ten genes in patients with HCM.1 Cardiac troponin T (cTnT) is an essential component of the troponin complex and plays a central role in the calcium regulation of contractions in cardiac myocytes