19　院前救治19.1　延误治疗 :急性心梗最危险时期为发病早期 ,此时患者疼痛剧烈 ,易发生心脏停搏。越早采取再灌注治疗等治疗措施 ,患者获益越大。但患者经常要 1h甚至更长时间才能接受治疗。治疗时机延误一部分是因为患者起病时症状不严重 ,不典型 ;另一部分是因为患者不知如 Pre-19 treatment 19.1 Delayed treatment: the most dangerous period of acute myocardial infarction early onset, when patients with severe pain, prone to cardiac arrest. The sooner reperfusion therapy and other treatment measures, the greater the benefit of patients. However, patients often take 1h or longer to receive treatment. The timing of treatment was delayed in part because the patient’s symptoms were not severe at presentation and partly because the patient did not know