什么意思？

Immediate reperfusion therapy is indicated when the ECG shows new bundle branch block or characteristic ST segment elevation of more than 1 mm in the limb leads or 2 mm in the chest leads. PCI is the treatment of choice for those presenting within 12 hours of symptom onset (Fig. 8.16). If PCI cannot be performed within 120 minutes, and thrombolysis is contraindicated, the procedure should be performed as soon as possible. Patients should be considered for PCI within 24 hours, even after spontaneous reperfusion or thrombolysis. PCI restores coronary patency in more than 95% of patients, with more than 95% 1- year survival and marked reductions in heart failure and recurrent MI. Successful PCI also leads to rapid pain relief, resolution of acute ST elevation and occasional transient arrhythmias. PCI confers no immediate mortality benefit in patients with non- ST segment elevation acute coronary syndrome.

再灌注治疗：当心电图显示出现新的束支传导阻滞或肢体导联特征性ST 段抬高超过 1 mm 或胸导联 ST 段抬高超过 2 mm 时，即有再灌注治疗的指征。经皮冠状动脉介入治疗是出现症状患者 12 h 内的首选治疗方法（图 8.17）。如果 120 min 内不能进行 PCI，并且溶栓禁忌，则应尽快进行手术。即使是在自发再通或溶栓后，患者也应在 24 h 内考虑接受经皮冠状动脉介入治疗。95% 以上的患者经皮冠状动脉介入治疗恢复了冠状动脉通畅，1 年生存率超过 95%，心力衰竭和复发性心肌梗死显著减少。成功的经皮冠状动脉介入治疗不仅可以快速缓解疼痛，还可使急性 ST 升高回落和缓解短暂性心律失常。经皮冠状动脉介入治疗对非 ST 段抬高的急性冠脉综合征患者的短期死亡率没有直接影响。