成人房间隔缺损封堵术后右室功能变化的超声研究

目的:观察成人房间隔缺损(ASD)封堵术后右心形态和功能的变化。方法:选择27例继发孔型ASD成功进行封堵的患者,分别于术前、术后3 d、1个月、3个月测量左右室舒张末期内径(LVED、RVED)、右房收缩末期内径(RAD)和右心室射血分数(RVEF);脉冲多普勒测量三尖瓣口舒张期早期峰值流速(E峰)、舒张晚期峰值流速(A峰)、三尖瓣口收缩期反流峰值流速(TR)和肺动脉收缩期峰值流速(PFVP)。结果:封堵术后RVED、RAD、RVEF、E峰、A峰、TR和PFVP减小,LVED增大。结论:房间隔缺损封堵术使右心系统的几何构型改善,右心舒缩功能明显增强。

The study of functional changes of the right ventricle after transcatheter closure of atrial septal defect with echocardiography

Objective: To study the changes of right ventricular structure and function after transcatheter closure of adult secondary type atrial septal defect(ASD).Methods: Twenty-seven patients with ASD were undergone transcatheter closure successfully.Right ventricular end-diastolic diameter(RVED),left ventricular end-diastolic diameter(LVED),right atrium end-systolic diameter(RAD),right ventricular eject fraction(RVEF),the doppler transtricuspid filling velocities,tricuspid regurgitation velocities and pulmonary artery filling velocities peak(PFVP) were measured respectively before the operation,3 days,1 month and 3 months of post-operation.Results: RVED,RAD,RVEF,TR and PFVP decreased significantly after operation while LVED increased.Conclusions: Right ventricular geometry structure were improved.The systolic and diastolic function of right ventricular strengthened after operations.