查看文章

The systemic load on the right ventricle (RV) after Senning atrial switch leads to ventricular dysfunction. Quantitative assessment of RV contractile reserve is mandatory to anticipate the need for anti‐fibrotic treatment. We aimed to quantitatively assess RV contractile reserve in Senning children by estimating speckle‐based global longitudinal strain (GLS) during dobutamine stress echocardiography (DSE).

This prospective study compared thirty‐one post‐Senning children (group I) and thirty controls (group II). In post‐Senning children, echocardiographic RV systolic function using one‐plane ejection fraction (RVEF), RV fractional area change (RVFAC), tricuspid annulus plane systolic excursion (TAPSE), its Z‐score, and RVGLS were recorded at rest and peak DSE. Contractile reserve was defined as improvement >5% in RVEF, >2% in GLS, and/or to near normal TAPSE.

RVEF …