肺动脉栓塞由于周围静脉或右心腔内血栓脱落引起,往往是一种并发病,是肺部危急病症,可发于许多疾病过程或手术后。至少有25%的死亡病例证实有小栓塞或大栓塞,但以肺栓塞作为原发原因死亡者,仅占全部死亡病例的1～2%。对于这1～2%的病人预防肺栓塞发生或对其适当治疗,是关系到生死问题,应引起我们注意。 Pulmonary embolism due to peripheral venous or right ventricular thrombus shedding is often caused by a concurrent disease, a critical illness in the lungs, can occur in many diseases or after surgery. At least 25% of the deaths confirmed small embolism or embolism, but pulmonary embolism as the primary cause of death, accounting for only 1% of all deaths. For this 1 to 2% of patients to prevent pulmonary embolism or its appropriate treatment is related to the issue of life and death, should cause our attention.