1　心脏猝死的定义WHO规定为疾病或损害发生24小时内所发出的死亡。各国对猝死概念的认识不一。仅根据症状出现的时间对于猝死的分类和确定死亡原因无意义。Hinkle和Thaler提出了心脏猝死的原因和分类标准:A.心律失常性猝死(意识突然丧失和脉搏消失,而无循环虚脱的基础疾病)。1 1 definition of sudden cardiac death WHO provides for the disease or damage occurred within 24 hours of the death. Different countries have different understanding of the concept of sudden death. The timing of symptoms only appears to be insignificant for the classification of sudden death and for determining the cause of death. Hinkle and Thaler proposed the causes and classification criteria for sudden cardiac death: A. Arrhythmic sudden death (a sudden loss of consciousness and disappearance of the pulse without underlying underlying diseases of circulatory collapse). 1