Myocardial ischemia is not always due to epicardial atheromatous disease.
Symptoms related to myocardial ischemia, for the most part, are due to high-grade epicardial coronary artery stenoses. However, in some instances at coronary angiography, no such lesions are seen to account for symptoms due to an imbalance between myocardial oxygen supply and myocardial oxygen demand. Thus, the finding of normal or nonobstructive epicardial coronary arteries at coronary angiography does not exclude the presence of myocardial ischemia in some patients.
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Richard Conti
D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000150:complications* / Q000000981:diagnostic imaging / Q000378:metabolism / Q000503:physiopathology; D003326:Coronary Circulation; D003330:Coronary Vessel Anomalies / Q000150:complications; D006338:Heart Neoplasms / Q000150:complications; D006349:Heart Valve Diseases / Q000150:complications; D006801:Humans; D008833:Microcirculation; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000209:etiology* / Q000378:metabolism / Q000503:physiopathology; D009206:Myocardium / Q000378:metabolism; D010100:Oxygen / Q000378:metabolism; D010101:Oxygen Consumption; D012307:Risk Factors
D010100:Oxygen
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