梗死前心绞痛是一种介于心绞痛和典型心肌梗死之间的临床综合征。其发病率,据Wood连续数年观察了1000例冠心病患者,报告为10％。对梗死前心绞痛进行有效治疗,可能使许多心肌梗死避免出现。梗死前心绞痛的临床表现:每例均有胸痛,其性质和典型的活动后心绞痛相似,但较剧烈,持续时间较长,且可在休息甚至睡眠时发作。用硝酸甘油不一定能缓解。心绞痛的形式可发生改变,变得更频繁,稍活动即可诱发,对治疗反应亦差了。心脏检查多属正常,有时有收缩期前奔马律或异常的胸前凸起,化验一般亦正常,罕见白细胞增高或血清酶的显著升高。然而Resnik报告,83％的患者血清谷草转氨酶(SGOT)轻度升高,可能表示心肌轻度的坏死。心电 Pre-infarction angina is a clinical syndrome between angina and a typical myocardial infarction. The incidence, according to Wood consecutive years of observation of 1000 patients with coronary heart disease, the report was 10%. Effective treatment of pre-infarction angina may prevent many myocardial infarctions. The clinical manifestations of pre-infarction angina: chest pain in each case, the nature of the typical post-operative angina similar, but more intense, longer duration, and can rest or sleep episodes. With nitroglycerin may not be able to alleviate. The form of angina can change, becoming more frequent, slightly active, and responsive to treatment. Cardiac examinations are mostly normal, sometimes systolic gallop or abnormal chest bulge, the test is generally normal, rare leukocytosis or serum enzymes increased significantly. Resnik, however, reported a slight increase in serum aspartate aminotransferase (SGOT) in 83% of patients, which may indicate mild myocardial necrosis. ECG