Table 1. Changes after modification of the systemic arterial pressure (SAP) including responses of superior cava vein blood flow (SCVBF), left ventricular ejection fraction (LVEF), heart rate (HR), and cerebral regional oxygen saturation (rSaO2).
| Baseline (previous hypotension) | Hypotensive event | Baseline (previous hypertension) | Hypertensive event | r2 | |
|---|---|---|---|---|---|
| SCVBF (m/s) | 0.7±0.2 | 0.7±0.3 | 0.7±0.2 | 0.9±0.3 | 0.00045 |
| LVEF (%) | 71±10 | 60±17 | 74±9 | 63±17 | 0.0052 |
| HR (bpm) | 153±24 | 163±33 | 162±27 | 164±37 | 0.073 |
| Cerebral rSaO2 (%) | 56±14 | 60±14 | 52±5 | 58±11 | 0.088 |
| MA BP (mmHg) | 58±8 | 33±12 | 51±11 | 85±20 |
The relationship between the mean systemic arterial pressure (MA BP) and each variable was analyzed by linear regression, and the resulting r2 is reported. Data are reported as means±SD.