肺动脉栓塞 (ＰＥ)是内源性或外源性栓子堵塞肺动脉或其分支引起肺循环障碍的临床和病理生理综合征。 99%为血栓性栓塞。在西方其发生率及死亡率均占第 3位。我国由于对此病认识不足 ,误认为ＰＥ是一少见病 ,加之其临床表现多样复杂 ,缺乏典型特征 ,且目前尚无统一诊断标准 ,在 Pulmonary Embolism (PE) is a clinical and pathophysiological syndrome that causes endogenous or exogenous emboli to clog the pulmonary artery or its branches to cause impediment to pulmonary circulation. 99% thromboembolism. In the West its incidence and mortality rates are the third place. Due to lack of understanding of this disease in our country, mistaken PE is a rare disease, combined with its complex clinical features, the lack of typical features, and there is no uniform diagnostic criteria, in