Diastolic Biventricular Impairment at Long-term Follow-up After Atrial Switch Operation for Complete Transposition of the Great Arteries: An Exercise Tissue Doppler Echocardiography Study

Objective The aim of this study was to investigate regional myocardial function after atrial switch operation for transposition of the great arteries (TGA) using tissue Doppler echocardiography with strain rate (SR) imaging. Methods In all, 24 patients with TGA aged 12 to 33 years and 10 control subjects underwent tissue Doppler echocardiography/SR imaging at rest and during bicycle exercise at 1 and 2 W/kg. Longitudinal function was quantified...