经食管超声心动图在重度肺动脉高压中的应用价值

目的探讨经食管超声心动图(TEE)在重度肺动脉高压病因诊断和鉴别诊断中的应用价值.方法对47例原因不明的重度肺动脉高压患者进行了经胸超声心动图(TTE )和TEE检查.结果 47例肺动脉高压患者中,TEE诊断分流性先天性心脏病17例,其中房间隔缺损9例,主肺动脉间隔缺损1例,在降主动脉短轴切面检出动脉导管未闭7例;左肺动脉和右肺动脉远段附壁血栓形成4例(继发性肺动脉高压组).余26例原因不明(原发性肺动脉高压组).继发性肺动脉高压组和原发性肺动脉高压组比较,TTE测量指标和主要临床资料无显著性差异.结论 TEE技术在不明原因重度肺动脉高压的病因诊断和鉴别诊断中具有重要临床应用价值.

Clinical Value of Transesophageal Echocardiography Used in Severe Pulmonary Hypertension

Objective To discuss the value of transesophageal echocardiography(TEE)in the differential diagnosis of unexplained severe pulmonary hypertensionMethods Transthoracic echocardiography(TTE) and TEE were performed in 47 patients with unexplained severe pulmonary hypertensionResults Seventeen patients with congenital left-to-right shunts (8 cases of atrial septal defect,1 case of unroofed coronary sinus and atrial septal defect,7 cases of patent ductus arteriosus,and 1 case of aortopulmonary septal defect) were diagnosedFour patients were found to have thrombosis in the left or right pulmonary arteryThe remained twenty-six patients with pulmonary hypertension were unable to be identified and defined as primary pulmonary hypertensionThere were no significant differences about TTE parameters and main clinical data between patients with primary and those with secondary pulmonary hypertension.Conclusions TEE plays an important role in the diagnosis and differential diagnosis of unexplained pulmonary hypertension