对以晕厥为首发表现的肺栓塞1例分析如下。1病历摘要女,79岁。主因发作性心悸5 a,加重2 h入院。患者5 a前出现心悸。心电图示:室上速,转复后心电图示:窦性心律,Ⅲ、avF、V1~V4T波倒置。2 a前行左侧隐匿旁道射频消融术,术后症状偶有发作,口服心律平治疗。2 h前患者再次发作上述症状就诊于我院,经静脉推注胺碘酮150 mg转复为窦性心律 A case of pulmonary embolism, the first manifestation of syncope, is analyzed as follows. 1 medical record summary female, 79 years old. The main cause of palpitations 5 a, increased 2 h admission. The patient experienced palpitations 5 days ago. ECG shows: supraventricular tachycardia, after reinstatement ECG: sinus rhythm, Ⅲ, avF, V1 ~ V4T wave inversion. 2 a before the left concealed bypass radio frequency ablation, postoperative symptoms occasionally attack, oral treatment of cardiac rhythm. 2 h before the patient again attack the above symptoms in our hospital, intravenous amiodarone 150 mg converted to sinus rhythm