Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle (myocardium) becomes abnormally thick (hypertrophied). The thickened heart muscle can make it harder for the heart to pump blood.
Hypertrophic cardiomyopathy often goes undiagnosed because many people with the disease have few, if any, symptoms. In a small number of people with HCM, the thickened heart muscle can cause shortness of breath and problems in the heart's electrical system, resulting in life-threatening abnormal heart rhythms (arrhythmias).
Fortunately, people with hypertrophic cardiomyopathy often lead normal lives with no significant problems.
Jul. 03, 2014
- Maron MS, et al. Overview of hypertrophic cardiomyopathy management including treatment of special problems http://www.uptodate.com/home. Accessed Sept. 26, 2013.
- AskMayoExpert. What tests are needed to confirm the diagnosis of hypertrophic cardiomyopathy (HCM), and what is the role of genetic testing? Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2013.
- Bonow RO, et al. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. Philadelphia, Pa.: Mosby Elsevier; 2012. Accessed Sept. 26, 2013.
- Ferri FF. Ferri's Clinical Advisor 2014: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2014. https://www.clinicalkey.com. Accessed Sept. 26, 2013.
- Jacoby DL, et al. Hypertrophic cardiomyopathy: Diagnosis, risk stratification and treatment. Canadian Medical Association Journal. 2013;185:127.
- Gersh BJ, et al. 2011 ACCF/AHA guideline for the diagnosis and treatment of hypertrophic cardiomyopathy: Executive summary: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2011;124:2761.
- Hypertrophic cardiomyopathy. American Heart Association. http://www.heart.org/idc/groups/heart-public/@wcm/@hcm/documents/downloadable/ucm_312225.pdf. Accessed Sept. 28, 2013.
- Ommen SR (expert opinion). Mayo Clinic, Rochester, Minn. Oct. 3, 2013.
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