Houwelingen, M.J. van

pressure aortic perturbation blood contraction volume artery isovolumic contraction period aortic pressure perturbation heart waveform pressure perturbation isovolumic pulse period onset bw.indd 25-03-11 chapter valve isovolumic contraction analysis systolic patient variation figure stroke volume change carotid aortic pressure physiol pressure waveform effect increase pressure wave aorta stroke occlusion systole exercise study intensity ventilation fluid responsiveness fluid pre-systolic pressure perturbation shock velocity cycle value pre-ejection period pulse wave velocity pulse pressure distension timing measurement interval animal result aortic pressure waveform blood fl ow blood pressure waveform lv pressure perturbation heart rate preload aortic valve method aicstart aortic valve opening hemorrhagic shock origin amplitude hemorrhage pre-ejection signal responsiveness decrease panel reversal right