The new method of non-invasive assessment of the left ventricular diastolic reserve during the exercise stress-echo

Purpose: In healthy men the exercise leads to increasing of the heart rate and decreasing of relaxation time right up to the maximal heart rate. Increasing of relaxation time during heart rate growth identifies the decompensation of the heart relaxation. Method: To assess the possibility of diastolic reserve evaluation we propose a new method. During the exercise with the help of continuous wave Doppler the blood flow in the left ventricular is registered. Isovolumic relaxation time (IVRT) is calculated on the heart rate 70, 80, 90, 100, 110, 120, 130, 140 bpm. To correct the influence of heart rate on relaxatio…