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Age-related decline in postextrasystolic potentiation in patients with aortic stenosis
David J D'Agate1, Craig A Snyder, Kevin P Marzo
1Department of Cardiology, Winthrop-University Hospital, Mineola, New York 11501, USA.
Abstract:
In aortic stenosis (AS), postextrasystolic potentiation (PESP), a measure of contractile reserve, has been demonstrated by an increased aortic valve gradient (AVG) after a ventricular extrasystole (VE). We studied age-related changes in PESP in 20 consecutive patients (age, 65-89 years) with significant AS (aortic area