A new non-invasive index for prognosis evaluation in patients with aortic stenosis

The global left ventricular (LV) contractility index, dσ*/dt max measures the maximal rate of change in pressure-normalized LV wall stress. We aim to describe the trend of dσ*/dt max in differing severity of aortic stenosis (AS) with preserved left ventricular ejection fraction (LVEF) and the association of dσ*/dt max with clinical outcomes in moderate AS and severe AS. We retrospectively studied a total of 1738 patients with AS (550 mild AS,...