Right and left ventricular interaction in pulmonary hypertension: Insight from velocity vector imaging

Objective To evaluate whether global peak systolic strain ( PSS ) and peak systolic strain rate ( PSSR ) derived from velocity vector imaging ( VVI ) allow early recognition of regional and global right ventricular ( RV ) dysfunction and the impact of this on left ventricular ( LV ) function in patients with pulmonary hypertension ( PHT ). Background RV function is an important determinant of prognosis in patients with heart failure, pulmonary...