Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium ishypertrophied (thickened) without any obvious cause. It is perhaps best known as a leading cause of sudden cardiac death in young athletes.[7] The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.
HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for
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For example, troponin T mutations are associated with a 50% mortality before the age of 40.
Diagnosis [edit]
A diagnosis of hypertrophic cardiomyopathy is based upon a number of features of the disease process. While there is use of echocardiography, cardiac catheterization, or cardiac MRI in the diagnosis of the disease, other important factors include ECG and genetic test (although not primarily used for diagnosis)[35] findings and if there is any family history of HCM or unexplained sudden death in otherwise healthy individuals.
Obstructive and non-obstructive [edit]
Physical examination [edit]
Cardiac catheterization [edit]
Treatment [edit]
Asymptomatic patients [edit]
A significant number of patients with hypertrophic cardiomyopathy do not have any symptoms and will have normal life expectancies, though they should be counseled to avoid particularly strenuous activities or competitive athletics. These patients should also be screened for risk factors for sudden cardiac death. In patients with resting or inducible outflow obstructions, situations that will cause dehydration or vasodilation (such as the use
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