肺动脉栓塞(Plumonary Embolism,PE)是指内源性或外源性栓子堵塞肺动脉及其分支引起肺循环和呼吸功能障碍的临床和病理生理综合征。近年来临床实践证明PE是危害人类健康的常见病、多发病之一。我国目前尚无确切的PE流行病学资料,但现有资料表明其发病率不低。如果不及时进行抗凝治疗,PE死亡率可高达30%~36%,及时有效的抗凝治疗可使死亡率降至2.5%~8.0%,因此早期诊断是降低死亡率、改善预后的关键。 Pulmonary Embolism (PE) refers to the clinical and pathophysiological syndromes in which endogenous or exogenous emboli clog the pulmonary artery and its branches to cause pulmonary circulation and respiratory dysfunction. In recent years, clinical practice has proved that PE is one of the common and frequently-occurring diseases that endanger human health. At present, there is no exact PE epidemiological data in our country, but the available data show that its incidence is not low. If not anticoagulant therapy in time, PE mortality can be as high as 30% to 36%, timely and effective anticoagulant therapy can reduce the mortality rate of 2.5% to 8.0%, so early diagnosis is to reduce mortality and improve prognosis.