Estimation of cardiac output variations induced by hemodynamic interventions using multi-beat analysis of arterial waveform: a comparative off-line study with transesophageal Doppler method during non-cardiac surgery.

ABSTRACT: Multi-beat analysis (MBA) of the radial arterial pressure (AP) waveform is a new method that may improve cardiac output (CO) estimation via modelling of the confounding arterial wave reflection. We evaluated the precision and accuracy using the trending ability of the MBA method to estimate absolute CO and variations (ΔCO) during hemodynamic challenges. We reviewed the hemodynamic challenges (fluid challenge or vasopressors) performed when intra-operative hypotension occurred during non-cardiac surgery. The CO was calculated offline using transesophageal Doppler (TED) waveform (CO_TED) or via application of the MBA algorithm onto the AP waveform (CO_MBA) before and after hemodynamic challenges. We evaluated the precision and the accuracy according to the Bland & Altman

SUBMITTER: Le Gall A 

PROVIDER: S-EPMC9123019 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature