Abstract
Hemodynamic effects of a newly devised EPABP were evaluated experimentally in normal and experimental animals with pulmonary regurgitation (PR) and resulted acute right heart failure. In normal group (n=9), the EPABP brought increase in CO by 3.9% with elevation of mean PAP and AoP and drop of mean RVP. On the other hand, in PR group (n=7), the EPABP elevated diastolic and mean PAP and mean AoP by 7.9mmHg, 2.3mmHg and 4.1mmHg respectively, producing increase in CO by 10.1%.
These effects might be based on (1) increase in pulmonary arterial forward flow in diastole, (2) early systolic unloading of RV, and, in case of PR, (3) prevention of pulmonary regurgitation.
