Abstract:Introduction
Aortic stenosis characterization in patients with low flow – low gradient stenosis (LF-LG) and reduced left ventricular (LV) ejection fraction (EF) is challenging. In this subgroup, pseudo- severe stenosis should be properly identified, as these patients are treated conservatively with heart failure therapy. Its identification relies mainly on preserved contractile reserve seen during dobutamine echocardiography. We present a patient with low contractile reserve and pseudo-severe… Show more
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