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Definition

By Mayo Clinic staff

A heart attack usually occurs when a blood clot blocks the flow of blood through a coronary artery — a blood vessel that feeds blood to a part of the heart muscle. Interrupted blood flow to your heart can damage or destroy a part of the heart muscle.

A heart attack, also called a myocardial infarction, was often fatal. Thanks to better awareness of heart attack signs and symptoms and improved treatments, most people who have a heart attack now survive.

Your overall lifestyle — what you eat, how often you exercise and the way you deal with stress — plays a role in your recovery from a heart attack. In addition, a healthy lifestyle can help you prevent a heart attack by controlling risk factors that contribute to the narrowing of the coronary arteries that supply blood to your heart.

References
  1. Heart attack. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/HeartAttack/HeartAttack_All.html. Accessed Oct. 1, 2009.
  2. American Heart Association. 2005 Guidelines for cardiopulmonary resuscitation and emergency cardiac care. Circulation. 2005;112:1S.
  3. Ewy GA. Cardiocerebral resuscitation should replace cardiopulmonary resuscitation for out-of-hospital cardiac arrest. Current Opinion in Critical Care. 2006;12:189.
  4. Hefland M, et al. Emerging risk factors for coronary heart disease: A summary of systematic reviews conducted for the U.S. Preventive Services Task Force. Annals of Internal Medicine. 2009;151:496.
  5. U.S. Preventive Services Task Force. Using nontraditional risk factors in coronary heart disease risk assessment: U.S. Preventive Services Task Force recommendation statement. Annals of Internal Medicine. 2009;151:474.
  6. Chobanian AV, et al. The seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. New England Journal of Medicine. 2003;289:2560.
  7. Stimulants. National Institute on Drug Abuse. http://teens.drugabuse.gov/facts/facts_stim2.php. Accessed Oct. 1, 2009.
  8. King SB, et al. 2007 update of the ACC/AHA/ SCAI 2005 guideline update for percutaneous coronary intervention. Circulation. 2008;117:261.
  9. Antman EM, et al. Use of nonsteroidal antiinflammatory drugs: An update for clinicians. Circulation. 2007;115:1634.
  10. Shaw LJ, et al. Optimal medical therapy with or without percutaneous coronary intervention to reduce ischemic burden. Circulation. 2008;117:1283.
  11. Rind DM, et al. Intensity of lipid lowering therapy in secondary prevention of coronary heart disease. http://www.uptodate.com/home/index.html. Accessed Oct. 1, 2009.
  12. Alcohol, wine and cardiovascular disease. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=4422. Accessed Oct. 1, 2009.
  13. Sexual activity and heart disease or stroke. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=4714. Accessed Oct. 1, 2009.
  14. Lightwood JM, et al. Declines in acute myocardial infarction after smoke-free laws and individual risk attributable to secondhand smoke. Circulation. 2009;120:1373.

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Nov. 20, 2009

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