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通常发生的心肌梗塞,是在冠状动脉硬化基础上发病的.然而,近年来由于冠脉造影的普及,无冠脉狭窄而显示正常冠脉造影的急性心肌梗塞的报告日益增多,有的报告在1%以下,亦有的报告为11%,差异虽悬殊,但并非罕见.Erlebacher 等认为其特点:患者发病的平均年龄,男性为33.8岁,女性为29.6岁以年轻人多见;梗塞前很少有心绞痛病史,多数发病突然;无冠脉危险因素(Coronary risk factors)及吸烟史;愈后良好;在女性有的报告认为与妊娠、产后及口服避孕药有关.Arnett 等认为,常见的原因如下:①急性心肌梗塞的诊断有误;②由于血红蛋白异常和冠脉血流量低下所致心肌缺氧;③冠脉造影上的误差;④
Commonly occurring myocardial infarction is based on the pathogenesis of coronary atherosclerotic However, in recent years due to the popularity of coronary angiography, coronary stenosis without coronary stenosis and showed an increasing number of reports of acute myocardial infarction, and some reported in 1%, and some 11%, although the disparity is not uncommon, Erlebacher so that its characteristics: the average age of onset of patients, 33.8 years old males and 29.6 years old women are more common in young people; very pre-infarction Few history of angina, most of the sudden onset; no coronary risk factors (Coronary risk factors) and smoking history; the prognosis is good; some women in the report that with pregnancy, postpartum and oral contraceptives .Arnett so that the common cause As follows: ① diagnosis of acute myocardial infarction is wrong; ② due to abnormal hemoglobin and coronary blood flow caused by myocardial hypoxia; ③ coronary angiography error; ④