Linear end-systolic pressure-volume relationship during pulsatile left ventricular bypass represents native heart function Osamu Kawaguchi, MD, John.

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Presentation transcript:

Linear end-systolic pressure-volume relationship during pulsatile left ventricular bypass represents native heart function Osamu Kawaguchi, MD, John S. Sapirstein, MD, William B. Daily, MD*, Walter E. Pae, MD, FACS, William S. Pierce, MD, FACS The Journal of Thoracic and Cardiovascular Surgery Volume 109, Issue 4, Pages 780-786 (April 1995) DOI: 10.1016/S0022-5223(95)70361-6 Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 1 Schematic diagram of the heart preparation. Three pairs of piezoelectric crystals are implanted endocardially. AO, Aorta; Inlet, inlet cannula of LV assist device from left atrium; IVC, inferior vena cava; LA, left atrium; LVAD, left ventricular assist device; LVP-Millar, catheter-tipped electronic LV pressure monitor; LVP-Fluid, fluid-filled LV pressure monitor; Outlet, outlet cannula of LV assist device to ascending aorta; PA, pulmonary artery; RA, right atrium; SVC, superior vena cava. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 2 A, Representative time tracings of LV pressure and volume signals and electrocardiogram. B, Pressure-volume loops of the control (□) and left ventricular bypass (○). The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions

Fig. 3 ESPVRs in the control and during indicated pumping rates of LV bypass. % Rate, Percent pumping rate; E es , slope of end-systolic pressure-volume relationship; r, correlation coefficient. Linear regression lines are indicated in each panel. The Journal of Thoracic and Cardiovascular Surgery 1995 109, 780-786DOI: (10.1016/S0022-5223(95)70361-6) Copyright © 1995 Mosby, Inc. Terms and Conditions