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现在已经知道,在心肌梗塞发病后急性期进行冠状动脉造影或紧急主动脉—冠状动脉旁路手术时很多引起心肌梗塞的冠状动脉内血栓发生,这种血栓是原发性的还是冠状动脉挛缩等血运中断后继发形成的,目前尚未明了。在某处心肌血运完全中断的情况下,约40分钟后将引起心肌不可逆的变化,因此,在实际临床工作中,心肌梗塞发生后要保护心肌完全不受缺血的损害是不可能的。但是,不少的心肌梗塞是基于冠状动脉
It is now known that many coronary thrombi that cause myocardial infarction occur during coronary angiography or emergency aorto-coronary bypass surgery in the acute phase following the onset of a myocardial infarction. Is the thrombus primary or coronary contracture etc. Blood formed after the interruption of blood supply, it is not yet clear. Somewhere in the case of complete interruption of myocardial blood flow, about 40 minutes will cause irreversible myocardial changes, therefore, in the actual clinical work, after myocardial infarction to protect the myocardium is not completely ischemic damage is impossible. However, many myocardial infarctions are based on the coronary arteries