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Risk factors
By Mayo Clinic staffMany factors can change and enlarge your heart's main pumping chamber (left ventricle). The risk factors for dilated cardiomyopathy include:
- High blood pressure (hypertension)
- Hardening and narrowing of arteries (atherosclerosis)
- Heart valve problems
- Damage to the heart muscle from a previous heart attack
- Rapid heart rate (tachycardia)
- Alcoholism
- Certain chemotherapy drugs for treating cancer
- Cocaine abuse
- Viral or bacterial infections of the heart muscle
- Metabolic disorders, such as thyroid disease or diabetes
- Absorbing too much iron from the food you eat (hemachromatosis)
- Nutritional deficiencies of essential vitamins and minerals
- Inflammation of heart muscle from immune system disorders
- Metals and other toxic compounds, such as lead, mercury and arsenic
- Neuromuscular disorders, such as muscular dystrophy
- Pregnancy (peripartum cardiomyopathy)
References
- Cardiomyopathy. National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/cm/cm_all.html. Accessed July 14, 2009.
- Cooper LT. Definition and classification of the cardiomyopathies. http://www.uptodate.com/home/index.html. Accessed July 14, 2009.
- Maron BJ, et al. Contemporary definitions and classification of the cardiomyopathies: An American Heart Association scientific statement from the Council on Clinical Cardiology, Heart Failure and Transplantation Committee; Quality of Care and Outcomes Research and Functional Genomics and Translational Biology Interdisciplinary Working Groups; and Council on Epidemiology and Prevention. Circulation 2006;113:1807.
- Weigner M, et al. Causes of dilated cardiomyopathy. http://www.uptodate.com/home/index.html. Accessed July 14, 2009.
- Hershberger RE. Genetics of dilated cardiomyopathy. http://www.uptodate.com/home/index.html. Accessed July 14, 2009.
- Podrid PJ, et al. Secondary and primary prevention of sudden cardiac death in heart failure and cardiomyopathies. http://www.uptodate.com/home/index.html. Accessed July 14, 2009.
- Heart failure. National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Hf/HF_All.html. Accessed July 14, 2009.
- Hare JM. The dilated, restrictive and infiltrative cardiomyopathies. In Libby P. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 8th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-1-4160-4106-1..50067-4&uniq=151686941&isbn=978-1-4160-4106-1&sid=867495152#lpState=open&lpTab=contentsTab&content=4-u1.0-B978-1-4160-4106-1..X5001-8--TOP%3Bfrom%3Dcontent%3Bisbn%3D978-1-4160-4106-1%3Btype%3DbookHome. Accessed July 14, 2009.
