肺栓塞是指来自静脉系统或右心的栓子脱落进入肺动脉及其分支,引起一系列的临床症状,严重者可危及生命。肺栓塞并不是少见病,但却不象心脑血管疾病那样被老百姓所知晓,甚至不少医务人员亦不认识此病。在西方国家,肺栓塞的死亡率仅次于心肌梗塞和肿瘤,占全部死因的第三位;在美 Pulmonary embolism means that emboli coming from the venous system or the right heart fall off into the pulmonary artery and its branches, causing a series of clinical symptoms that can be fatal to life. Pulmonary embolism is not a rare disease, but not as common as cardiovascular and cerebrovascular diseases known, and even many medical workers do not know the disease. In Western countries, the mortality rate of pulmonary embolism is second only to myocardial infarction and cancer, accounting for the third leading cause of death; in the United States