Change in Aortic End-Systolic Pressure by Alterations in Loading Sequence and Its Relation to Left Ventricular Isovolumic Relaxation

Abstract

Descending intervention induced greater prolongation of T than ascending intervention. Prolongation of T was closely related to an increase in AoESP in the descending intervention but a decrease in AoESP in the ascending intervention. These data suggest that not only the loading sequence but also the pressure level at the onset of isovolumic relaxation determines LV relaxation.