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Hypertrophic cardiomyopathy support groups
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Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a form of cardiomyopathy, a condition in which the heart muscle to become thick. The thickening makes it harder for the heart to work.
Hypertrophic cardiomyopathy is often asymmetrical, meaning one part of the heart is thicker than the other parts. The condition is usually passed down through families (inherited). It is believed to be a result of several problems (defects) with the genes that control heart muscle growth.
Because hypertrophic cardiomyopathy causes the size of one of the heart chambers (ventricular chamber) to shrink, the heart must work harder to pump blood. The thickening of the heart muscle may completely block the normal flow of blood out of the heart. It may also make it harder for the heart valves to work. Heart valves help control the direction of blood flow.