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肺血栓栓塞症(pulmonary thromboembolism,PTE)指来自静脉系统或右心的栓子进入肺循环,造成肺动脉阻塞,引起肺循环受阻、肺动脉压急剧升高、急性右心扩张和右心功能衰竭。PTE临床表现多种多样,缺乏特异性,易与其他疾病相混淆。其常见临床表现有呼吸困难、胸痛、咯血、心悸、发绀、濒死感等,而晕厥症状不常见,容易被人忽视,此类患者栓子常阻塞肺动脉主干及主要分支,对血流动力
Pulmonary thromboembolism (PTE) refers to the embolization of the venous system or right heart into the pulmonary circulation, which causes obstruction of the pulmonary artery, impedes pulmonary circulation, sharp increase in pulmonary pressure, acute right heart dilation and right heart failure. PTE clinical manifestations varied, the lack of specificity, and other diseases easily confused. Its common clinical manifestations are dyspnea, chest pain, hemoptysis, heart palpitations, cyanosis, sense of nearness and so on, and syncope symptoms are uncommon, easily overlooked, these patients embolus often blocked the main pulmonary artery and the main branch of the hemodynamic