HVAD Flow Waveform Estimates Left Ventricular Filling Pressure.

ABSTRACT:

Background

HVAD left ventricular assist device flow waveforms provides graphical real-time information linking device performance with invasive hemodynamics. Previous studies have demonstrated a good correlation between the slopes of the ventricular filling phase slope (VFPS) and directly measured pulmonary capillary wedge pressure (PCWP). We aimed to validate the utility of VFPS to estimate PCWP and predict clinical outcomes.

Methods

In this prospective blinded study, screenshots from the HVAD monitor and simultaneous invasive hemodynamic measurements were obtained. Each screenshot was digitized and the VFPS was calculated by 2 independent reviewers who were blinded to the hemodynamic results. The equation PCWP = 7.053 +1.365 × (VFPS) was derived from a previously published

SUBMITTER: Imamura T 

PROVIDER: S-EPMC7347084 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature