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无痛性心肌缺血(SMI),指具有心肌缺血客观证据,而无心绞痛或其相关症状。临床约有半数的冠心病患者可发生SMI。在未确诊的冠心病患者中SMI发作远较心绞痛多见。又因SMI无明显症状而易被病人和医生所忽视.是冠心病不良预
Painless myocardial ischemia (SMI), refers to the objective evidence of myocardial ischemia, but no angina or related symptoms. About half of clinical coronary heart disease patients can occur SMI. In undiagnosed patients with coronary heart disease, episodes of SMI are far more common than angina. Because SMI no obvious symptoms and easily overlooked by patients and doctors. Coronary heart disease is bad