Table 2.
PVI measurements at baseline (pre- study) and after the end of the study in the same mode (post-study).
| Pre-study | Post-study | Pre-post study change [5−95 range] | |
|---|---|---|---|
| VT (ml/kg) | 6.7 ± 1.7 | 6.7 ± 1.7 | 0 [-0.9−0.9] |
| RR (br/min) | 27 ± 6 | 27 ± 6 | 0 [-6−6] |
| Pmuspeak (cmH2O) | 15 ± 10 | 15 ± 8 | 0 [-3−6] |
| ElastancePVI (cmH2O/L) | 26 ± 13 | 25 ± 13 | 0 [-5 – 7] |
| ResistancePVI (cm2O/L/sec) | 11 ± 6 | 12 ± 7 | 0 [-5 – 3] |
| PEEPi (cmH2O) | 2 ± 1 | 2 ± 1 | 0 [-2 – 2] |
VT: Tidal volume, RR: Respiratory rate, PmusPeak Inspiratory muscle pressure calculated by PVI, PEEPi Intrinsic positive end-expiratory pressure. A Paired-samples t-test was used to evaluate differences between the two conditions.