肺栓塞是临床中较常见的危重症,然而由于其临床表现不典型,存在误诊率、漏诊率与病死率高等特点。肺栓塞的常见心电图表现有心动过速、右束支传导阻滞、胸前导联T波倒置、SⅠQⅢTⅢ等,而肺栓塞致继发性QT间期延长,目前全世界范围内报道不多,临床重视不够,易引起严重后果。Charles等[1]在1993年报道了首例因肺栓塞而致QT间期延长的病例。随后de Meester等[2]在 Pulmonary embolism is more common in critically ill patients, however, because of its clinical manifestations atypical, there are misdiagnosis rates, missed diagnosis rate and high mortality. Pulmonary embolism common ECG showed tachycardia, right bundle branch block, thoracic T wave inversion, S Ⅰ Q Ⅲ T Ⅲ, etc., and pulmonary embolism secondary QT prolongation, the current coverage of the world is small, Clinical attention is not enough, easily lead to serious consequences. Charles et al [1] reported the first case of QT prolongation due to pulmonary embolism in 1993. Then de Meester et al [2] at