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急性心肌梗塞(AMI)患者经常发生自发性心绞痛。由于梗塞后心绞痛能引起心肌梗塞(MI)的扩展,因而一般是预后不良的征候。梗塞后心绞痛的机理尚不明了,冠状动脉严重狭窄时,心率及心肌氧耗量略有增加,就足以引起氧的供需关系明显改变。冠状动脉痉挛可能是梗塞后心绞痛的另一种原因。OIiva等指出,有40％的AMI患者的闭塞动脉发生痉挛。本文将提示冠状动脉痉挛可引起梗塞后心绞痛。材料与方法:本组6例AMI患者住入冠心病监护单元(CCU)后均有复发性ST
Spontaneous angina often occurs in patients with acute myocardial infarction (AMI). Because post-infarction angina can cause an expansion of myocardial infarction (MI), it is generally a sign of poor prognosis. The mechanism of post-infarction angina is not clear, with severe coronary stenosis, a slight increase in heart rate and myocardial oxygen consumption is enough to cause a significant change in the oxygen supply-demand relationship. Coronary artery spasm may be another cause of post-infarction angina. OIiva, etc. pointed out that 40% of patients with AMI occlusive artery spasm. This article will suggest that coronary artery spasm can cause post-infarction angina. Materials and Methods: Six patients with AMI admitted to CCU had recurrent ST