Author: Marcela Rodriguez Jimenez
Date of first publication: 06.02.2024
Last change: 04.04.2024
Removal of linked article on assessing recruitability - no new revisionThe authors' point? The normalized maximum distance on a quasi-static PV curve and the recruitment-to-inflation ratio can be used at the bedside as potential indicators of lung recruitability.
In mechanically ventilated COVID-19 patients, what is the relationship between lung recruitability assessments based on the low-flow quasi-static pressure-volume (PV) curve and the recruitment-to-inflation (R/I) ratio?
Inclusion criteria | Exclusion criteria |
Aged 18 years or older | Under 18 years of age |
Diagnosis of COVID-19 confirmed by polymerase chain reaction or quantitative antigen testing of nasal swabs | No recording of respiratory data by Datalogger 5.00 |
Simultaneous evaluation of the quasi-static PV curve and the R/I ratio using Datalogger 5.00 | |
Interventions | ||
Quasi-static PV curve | R/I ratio (Recruitment-to-inflation ratio) | Recruitability assessment |
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Measurements and main results | ||
Enrollment and baseline characteristics | Correlation between NMD and R/I ratio | Relationship between compliance and recruitability items |
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There is a strong correlation between NMD of the quasi-static PV curve and the R/I ratio for recruitability assessment. In addition, NMD and the R/I ratio correlate with the Crs ratio (higher/lower). Therefore, NMD and the R/I ratio could be potential indicators of recruitability that can be performed at the bedside.
Hamilton Medical offers an extensive range of educational material on use of the P/V Tool for assessing recruitability, performing recruitment maneuvers, and setting PEEP. Follow the link below to access articles, videos, e-learning modules, and more.
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