Simultaneous ramp right heart catheterization and echocardiography in a ReliantHeart left ventricular assist device

Figure 1 This figure shows the effect of increasing pump speed on the pulmonary capillary wedge pressure tracing. In 8700 RPM (A), the PCWP is measured at 14 mmHg with a pronounced “v” wave. At 9100 RPM (B), the “V-wave” disappears, and the PCWP has decreased to 10 mmHg. Flow and Power refer to flow measured by the LVAD and power consumed by the LVAD, respectively. LVAD: Left ventricular assist devices.