超声心动图评价肺动脉血栓内膜剥脱术的近期疗效

目的 应用超声心动图观察慢性血栓栓塞性肺动脉高压患者右心功能改变情况,以评价肺动脉血栓内膜剥脱术(PTE)的近期疗效.方法 慢性血栓栓塞性肺动脉高压患者16例,于PTE术前及术后15d、30d分别测量左室舒张末期内径(LVDd)、右室舒张末期面积(RVEDA)、右室收缩末期面积(RVESA)、右室面积变化率(RVFAC)、肺动脉血流加速时间(Pact)、三尖瓣反流压差(PGT1)及三尖瓣反流面积(AT1).结果 16例患者PTE后15 d、30 d的LVDd、Pact较术前增加.RVEDA、RVESA、PGT1、AT1均减小,RVFAC增大(均P<0.01).结论 PTE可以有效缓解慢性血栓栓塞性肺动脉高压患者的肺动脉压力,改善右心功能.

Assessment of the right ventricular function after pulmonary thromboendarterectomy by Doppler echocardiography

Objective To evaluate the right ventricular function of chronic thromboembolic pulmonary hypertension (CTEPH) after pulmonary thromboendarterectomy (PTE) by Doppler echocardiography. Methods In 16 patients with CTEPH,end-diastolic left ventricular diameter(LVDd), end-diastolic right ventricular areas (RVEDA), end-systolic right ventricular areas (RVESA), right ventricular fractional area change (RVFAC), pulmonary accelerative time (Pact), pressure gradient of tricuspid valve regurgitation (PGT1), area of tricuspid valve regurgitation (AT1) were measured by echocardiography. Results Fifteen and thirty days after surgery,the LVDd and Pact had increased,RVEDA, RVESA,PGT1 and AT1 had decreased while RVFAC had increased in all cases. Conclusions PTE may effectively improve the right ventricular function of patients with CTEPH.