Cardiothoracic & vascular anesthesia
Usefulness of the Recruitment-to-Inflation Ratio and Pulmonary Compliance for Assessing Pulmonary Recruitability in Cardiac Surgery Patients: A Prospective Study
Authors' conclusion
In this study, an R/I ratio >0.5 identified up to 60% of patients as potentially recruitable.
Study context
- Population
- Patients undergoing elective, nonurgent noncomplex cardiac surgery requiring cardiopulmonary bypass (CPB) (coronary artery bypass grafting (CABG), valve replacement, valve repair)
- Participants
- 41 patients
- Exposure
- Recruitable vs nonrecruitable patients at 3 perioperative time points
- Outcome
- Proportion of recruitable patients (R/I >0.5)
Methodological detailssingle-center, R/I ratio calculated retrospectively at 3 time points
- Single-center
- R/I ratio calculated retrospectively at 3 time points
Main finding
As reported in the abstract
Recruitable postintubation
61%
25 patients
Recruitable post-CPB
29%
12 patients
Recruitable in the intensive care unit (ICU)
17%
7 patients
Observational data: associations, not effects.
Further findings
| Outcome | P value |
|---|---|
| Lung compliance after recruitment · All 3 time pointsSignificantly higher in recruitable patients | P < 0.01 |
Compliance before lung recruitment maneuver (LRM) · All 3 time points
- Did not differ significantly between recruitable and nonrecruitable groups
Safety
LRMs interrupted for hemodynamic intolerance (>20% drop in MAP)
- Interrupted LRMs of 123 performed
- 11 (9%)
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Usefulness of the Recruitment-to-Inflation Ratio and Pulmonary Compliance for Assessing Pulmonary Recruitability in Cardiac Surgery Patients: A Prospective Study. J Cardiothorac Vasc Anesth. Published 10 August 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →