目的:探讨肺血栓栓塞症 (PE)的临床特征及早期确诊手段。 方法 :分析 38例经临床确诊的 PE患者的临床表现、心电图、胸部 X线 (CT)、肺动脉造影结果。结果:38例中胸痛 33例 ,呼吸困难 37例 ,咳嗽 15例 ,咯血9例 ,晕厥发作 2例。 32例有紫绀表现 ,静脉怒张 15例 ,4例可闻及胸膜摩擦音 ,8例出现低血压。 11例于发病后 1个月内死亡。典型 PE心电图改变 S Q T 者 18例。典型 PE的肺 CT改变为肺部多发锲形、三角形、线形病灶、肺实变影或肺叶透亮度增加区等。结论 :临床表现可以多种多样 ,并无特异性 ,主要取决于栓子堵塞的部位与范围大小。具有高危因素且临床怀疑 PE时应行进一步的实验室检查以明确诊断。血气分析是有用的筛选方法 Objective: To investigate the clinical features and early diagnosis of pulmonary thromboembolism (PE). Methods: The clinical manifestations, electrocardiogram, chest X-ray (CT) and pulmonary angiography were analyzed in 38 patients with clinically diagnosed PE. Results: There were 33 cases of chest pain in 38 cases, 37 cases of dyspnea, 15 cases of cough, 9 cases of hemoptysis and 2 cases of syncope. 32 cases had cyanosis, venous anger in 15 cases, 4 cases can be heard and pleural friction sound, 8 cases of hypotension. Eleven patients died within 1 month after onset. Typical PE ECG changes S Q T in 18 cases. Typical pulmonary PE CT changes to multiple warts in the lungs, triangle, linear lesions, lung consolidation shadow or increased lozenge brightness and so on. Conclusion: The clinical manifestations can be varied and nonspecific, depending on the location and extent of embolic blockage. With high-risk factors and clinical suspicion of PE should be further laboratory tests to confirm the diagnosis. Blood gas analysis is a useful screening method