Association Between Finger Plethysmographic Features and Impedance-Based Thoracic Fluid Content Measurement in a Lower Body Negative Pressure Model of Hemorrhagic Shock
While both PPG features and impedance-based TFC trend congruently in the perishock state following LBNP exposure, peripheral pulse wave signals lag redistribution of thoracic fluid volume. Photoplethysmography features of beat length and normalized AUC may serve as a surrogate for TFC when direct thoracic sensing is not available.
Authors
- Leonard Weiss (ORCID: https://orcid.org/0000-0001-6857-6573)
- Ronald K. Poropatich
- Francis Xavier Guyette (ORCID: https://orcid.org/0000-0002-9151-4896)
- Michael R. Pinsky (ORCID: https://orcid.org/0000-0001-6166-700X)
- Katharyn L. Flickinger (ORCID: https://orcid.org/0000-0002-7631-1687)
- David D. Salcido (ORCID: https://orcid.org/0000-0002-3735-8167)
- Nina Lane
- Ryann DeMaio
- Chase Zikmund
- Alexandra Weissman
Institutions
- University of Pittsburgh (US)
Publication Details
- Journal
- Military Medicine
- Published
- 2024-10-17
- DOI
- https://doi.org/10.1093/milmed/usae516
- Primary Topic
- Hemodynamic Monitoring and Therapy
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Army Medical Research and Development Command