Right ventricular hypertrophy and diastolic dysfunction in arterial switch patients without pulmonary artery stenosis

Abstract

Increased peak flow velocity in the pulmonary trunk was often observed late after ASO, even in the absence of significant pulmonary artery stenosis. Haemodynamic consequences were RV hypertrophy and RV relaxation abnormalities as early markers of disease, while systolic RV function was well preserved.