Parsimony of Hemodynamic Monitoring Data Sufficient for the Detection of Hemorrhage.

ABSTRACT:

Background

Individualized hemodynamic monitoring approaches are not well validated. Thus, we evaluated the discriminative performance improvement that might occur when moving from noninvasive monitoring (NIM) to invasive monitoring and with increasing levels of featurization associated with increasing sampling frequency and referencing to a stable baseline to identify bleeding during surgery in a porcine model.

Methods

We collected physiologic waveform (WF) data (250 Hz) from NIM, central venous (CVC), arterial (ART), and pulmonary arterial (PAC) catheters, plus mixed venous O2 saturation and cardiac output from 38 anesthetized Yorkshire pigs bled at 20 mL/min until a mean arterial pressure of 30 mm Hg following a 30-minute baseline period. Prebleed physiologic data defined

SUBMITTER: Pinsky MR 

PROVIDER: S-EPMC7769060 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature