Objective: To evaluate left ventricular hemodynamics in rapid two-stage arterial switch operation (ASO) for patients with transposition of great arteries (D-TGA) by Doppler echocardiography.

• 摘要目的：观察完全性大动脉转位(D-TGA)患者快速二期大动脉调转术(ASO)中左心室血流动力学变化，评价肺动脉环缩对左心室的影响。