Respiratory failure & ventilation
Dynamic mechanical power at the bedside: A validation study in volume-controlled and pressure-controlled ventilation modes
Authors' conclusion
MPdyn demonstrates high agreement with MPgeo in both VCV and PCV modes, supporting its use as a simple, reliable, and bedside-applicable tool for calculating mechanical power in ARDS patients.
Study context
- Population
- Adults with ARDS in a tertiary ICU, measured in VCV and pressure-controlled ventilation (PCV) at I:E 1:2 and 1:1
- Participants
- 36 adults
- Comparison
- Dynamic mechanical power (MP) equation vs geometric gold standard
- Outcome
- Agreement of MPdyn with MPgeo (linear regression, Bland-Altman bias)
Methodological detailssingle tertiary ICU, Bland-Altman analysis
- Single tertiary ICU
- Bland-Altman analysis
Performance
As reported in the abstract
Agreement MPdyn vs MPgeo (bias MPdyn - MPgeo)
- Correlation, all modes and I:E ratios (R2)
- ≥ 0.97
- Bias, VCV 1:2
- 0.15 J/min (0.8 %)
- Bias, VCV 1:1
- 0.32 J/min (2.1 %)
- Bias, PCV 1:2
- 0.28 J/min (1.9 %)
- Bias, PCV 1:1
- 0.52 J/min (3.4 %)
- SD of bias across analyses
- <0.5 J/min
Original publication
Dynamic mechanical power at the bedside: A validation study in volume-controlled and pressure-controlled ventilation modes. J Crit Care. Published 30 October 2025. doi:10.
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