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Treatment is aimed at control of symptoms and prevention of complications. Some patients may require hospitalization until the condition is stabilized.
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The thick ventricles of HCM contract and relax abnormally, and to assist the relaxation phase some drugs may be necessary. These include beta-blockers and calcium channel blockers such as verapamil, which improve exercise tolerance and reduce chest pain.
When severe blood outflow blockage exists, an operation called myotomy-myectomy (heart muscle cutting-heart muscle removal) often results in marked improvement. Replacement of the mitral valve during the same surgery is necessary in some HCM patients with mitral valve regurgitation.
Some people with arrhythmias may need anti-arrhythmic medications. If the arrhythmia is atrial fibrillation, the risk of blood clots breaking away from the atrium and clogging arteries in the body may need to be reduced with blood thinner medicine.
Patients with HCM and high risk factors may need to receive an implantable-cardioverter defibrillator (ICD) to prevent sudden cardiac death. These risks include severe heart muscle thickness, potentially lethal heart rhythms, a history of passing out, or a family history of sudden cardiac death.
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