Table 2.
Median (IQR) values for all physiological variables estimated during baseline and plateau, with their respective ∆ correlations with ∆ICP and ∆ABP
| Variable | Baseline | Plateau |
|---|---|---|
| ICP | 22.81 (28.49–19.91) | 46.45 (55.22–40.64)* |
| ABP | 93.34 (98.30–86.14) | 93.55 (97.44–85.28) |
| HR | 75.72 (84.91–65.42) | 74.73 (80.45–66.14)* |
| CPP | 70.89 (78.22–60.38) | 45.91 (52.87–37.17)* |
| FVm | 57.31 (71.87–43.16) | 45.52 (63.96–33.15)* |
| FVs | 109.35 (132.35–92.78) | 113.55 (141.72–99.44)* |
| FVd | 31.04 (40.24–23.26) | 22.99 (36.60–10.97)* |
| PI | 1.39 (1.68–1.21) | 2.00 (2.83–1.68)* |
| CVR | 1.23 (1.47–1.00) | 0.99 (1.25–0.68)* |
| CBV Amp | 2.38 (3.73–1.82) | 3.36 (4.77–2.42)* |
| CrCP | 51.37 (56.88–41.89) | 65.33 (70.67–52.07)* |
| ICP Amp | 2.21 (2.58–1.70) | 6.16 (7.88–4.90)* |
| nICP_BB Amp | 1.97 (2.70–1.61) | 3.44 (4.07–2.67)* |
ABP arterial blood pressure (mmHg), CBV Amp cerebral blood volume amplitude (mmHg), CPP cerebral perfusion pressure (mmHg), CrCP critical closing pressure (mmHg), CVR cerebral vascular resistance (mmHg*s/cm), FV cerebral blood flow velocity (m, mean; s, systolic; d, diastolic) (cm/s), HR heart rate (beats/min), ICP Amp pulse amplitude of ICP (mmHg), nICP_BB Amp amplitude of non-invasive ICP based on the black box model, PI pulsatility index
* At the 0.05 level, distributions between baseline and plateau are significantly different