increased left ventricular (LV) diameter, end-diastolic pressure
and decreased LV fractional shortening and [+ or -] dP/dt, compared to sham animals (19).
In severe aortic stenosis, myocardial oxygen demand is high, but oxygen delivery is impaired by the effects of low aortic pressure, the high LV end-diastolic pressure
and the thick myocardial wall.
According to the arterial systemic graph during balloon pumping, there are two pressure responses that are influenced by the deflation timing, first, the aortic end-diastolic pressure
, following the balloon inflation/deflation cycle, should be lower than the preceding unassisted aortic end- diastolic pressure.
B-type natriuretic peptide (BNP) is a neurohormone produced mainly by ventricular myocytes in response to increased end-diastolic pressure
, or volume, of the ventricles (3-5).
A difference greater than 20 milliseconds between AR duration and the mitral A velocity duration suggests an increased LV end-diastolic pressure
Highly elevated right ventricular end-diastolic pressure
due to decreased right ventricular compliance by severe infarction resulted in shortening of ICT and the pseudonormalized right ventricular MPI.