Canadian Medical Guide > Diseases > Cardiovascular Diseases > Heart Diseases > Myocardial Ischemia Terms and Definitions




Myocardial Ischemia

Medical Definition: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERIOSCLEROSIS), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).
Guide Notes: = defic of myocard blood supply; may lead to MYOCARDIAL INFARCTION
Previously Indexed: Coronary Disease (1966-1992)
Myocardial Ischemia Categories.
Canadian Medical Guide Definition Coronary Disease - An imbalance between myocardial functional requirements and the capacity of the coronary vessels to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.
Canadian Medical Guide Definition Myocardial Infarction - Gross necrosis of the myocardium, as a result of interruption of the blood supply to the area. (Dorland, 27th ed)

Myocardial Ischemia Medical Definitions and Terms

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