Cardiothoracic & vascular anesthesia
Influence of Non-Compressible Versus Compressible Underbody Forced-Air Warming Systems on Core Temperature in Off-Pump Cardiac Surgery
Authors' conclusion
In off-pump cardiac surgery, non-compressible and compressible underbody warming systems provided comparable intraoperative thermal performance.
Study context
- Population
- Adults undergoing off-pump coronary revascularization, tertiary university hospital, May 2021–July 2023
- Participants
- 100 adults
- Exposure
- Non-compressible vs compressible underbody forced-air warming
- Non-compressiblen = 51
- Compressiblen = 49reference
- Outcome
- Maximum negative deviation of core (bladder) temperature from baseline (ΔTneg)
- Follow-up
- From induction of anaesthesia until ICU transfer
Methodological detailssingle-centre, before-after comparison, propensity score overlap weighting
- Single-centre
- Before-after comparison
- Propensity score overlap weighting
Main finding
ΔTneg
Hodges-Lehmann median difference
−0.10 °C
95% CI −0.40 to 0.10
P = 0.23
Change by group
Non-compressible
−0.40
median · IQR −0.75–0.00 · °C
Compressible
−0.50
median · IQR −1.10–-0.10 · °C
Non-compressible vs Compressible
Hodges-Lehmann median difference −0.10 °C (95% CI −0.40 to 0.10); P = 0.23
As reported in the abstract
Observational data: associations, not effects.
Further findings
Predictors of ΔTneg (propensity score-weighted multivariable regression)
- Baseline temperature, β
- −0.36 (p = 0.002)
- Warming device, β (no significant effect)
- −0.07 (p = 0.62)
Original publication
Influence of Non-Compressible Versus Compressible Underbody Forced-Air Warming Systems on Core Temperature in Off-Pump Cardiac Surgery. J Cardiothorac Vasc Anesth. Published 14 December 2025. doi:10.
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