患者，男，60岁。突发性心前区疼痛2小时，既往有高脂血症和吸烟史，无高血压和出血性疾病史。查体:BP150/90mmHg，双肺呼吸音清，心率89次/分，律齐。心电图示II、III和aVF导致ST段下斜型压低O.2mV,V1-V6导致ST段弓背向上抬高0.3-0.5mV。最关键的治疗是

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