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急性心肌梗塞(AMI)后,复发性血栓形成可引起新的AMI,也可触发室性心律失常而导致猝死。首次缺血发作时的猝死:急性冠脉阻塞后,如果血流未能迅速恢复或侧支循环无效,则导致心肌坏死;大面积缺血心肌电生理改变可导致室颤和猝死。如果极早期再灌注(自发性或治疗后),则可限制梗塞范围,预后好,否则预后差。这说明,急性缺血时的室颤反映缺血面积大,其预后取决于心肌坏死范围。 AMI范围与预后:急性冠脉阻塞的结局有三种
Acute myocardial infarction (AMI), recurrent thrombosis can cause new AMI, can also trigger ventricular arrhythmias and lead to sudden death. Sudden death in the first ischemic attack: acute coronary occlusion, if the blood flow failed to recover quickly or collateral circulation is invalid, leading to myocardial necrosis; large ischemic myocardial electrophysiological changes can lead to ventricular fibrillation and sudden death. If very early reperfusion (spontaneous or after treatment), you can limit the infarct range, the prognosis is good, otherwise the prognosis is poor. This shows that acute ischemic ventricular fibrillation reflects the ischemic area, the prognosis depends on the scope of myocardial necrosis. AMI Range and Prognosis: There are three outcomes of acute coronary occlusion