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Definition
By Mayo Clinic staff
Myocardial ischemia occurs when blood flow to your heart muscle is decreased by a partial or complete blockage of an artery that carries blood to your heart. The decrease in blood flow reduces your heart's oxygen supply.
Myocardial ischemia, also called cardiac ischemia, can damage your heart muscle, reducing its ability to pump efficiently. A sudden, severe blockage of a coronary artery may lead to a heart attack. Myocardial ischemia may also cause serious abnormal heart rhythms.
Treatment for myocardial ischemia is directed at improving blood flow to the heart muscle and may include medications, a procedure to open blocked arteries or coronary artery bypass surgery. Making heart-healthy lifestyle choices is important in treating and preventing myocardial ischemia.
- Antman EM. Ischemic heart disease. In: Fauci AS, et al. Harrison's Principles of Internal Medicine. 17th ed. New York, N.Y.: McGraw-Hill; 2008. http://www.accessmedicine.com/content.aspx?aID=2897069. Accessed March 2, 2010.
- Deedwanla PC. Silent myocardial ischemia: Prognosis and therapy. http://www.uptodate.com/home/index.html. Accessed March 2, 2010.
- Deedwanla PC. Silent myocardial ischemia: Epidemiology and pathogenesis. http://www.uptodate.com/home/index.html. Accessed March 2, 2010.
- Hollenberg SM, et al. Myocardial ischemia. In: Hall JB, et al. Principles of Critical Care. 3rd ed. New York, N.Y.: McGraw-Hill; 2005. http://www.accessmedicine.com/content.aspx?aID=2285041. Accessed March 2, 2010.
- Torpy JM. Acute coronary syndromes. Journal of the American Medical Association. 2010;303:90.
- Myocardial ischemia, injury and infarction. American Heart Association. http://americanheart.org/presenter.jhtml?identifier=251. Accessed March 2, 2010.
- Goldberger AL. Electrocardiogram in the diagnosis of myocardial ischemia and infarction. http://www.uptodate.com/home/index.html. Accessed March 2, 2010.
- Deedwanla PC. Silent myocardial ischemia: Diagnosis and screening. http://www.uptodate.com/home/index.html. Accessed March 2, 2010.
- Lab tests online: Cardiac biomarkers. American Association for Clinical Chemistry. http://www.labtestsonline.org/understanding/analytes/cardiac_biomarkers/glance.html. Accessed March 2, 2010.
- What are Holter and event monitors? National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/holt/holt_what.html. Accessed March 2, 2010.
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