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Table 2 Oxygenation, patient temperature and haemodynamics at the time of measurement

From: Non-pulsatile blood flow is associated with enhanced cerebrovascular carbon dioxide reactivity and an attenuated relationship between cerebral blood flow and regional brain oxygenation

Flow mode PaCO2 level rSO2 (%) SaO2 (%) PaO2 (mmHg) Temp (°C) MAP (mmHg) CI (L/min/m2)
Non-pulsatile
 30 mmHg 56 [51–60] 99 [98–100] 160 [140–177] 36.3 [35.9–36.7] 63 [57–68] 2.5 [2.4–2.7]
 40 mmHg 59 [57–63] 99 [98–100] 170 [154–197] 36.4 [35.8–36.7] 63 [57–69] 2.5 [2.4–2.7]
 50 mmHg 62 [57–66] 99 [98–100] 161 [133–190] 36.4 [35.9–36.7] 63 [54–68] 2.5 [2.3–2.7]
Pulsatile
 30 mmHg 58 [56–64] 100* [99–100] 137* [116–161] 36.5 [36.3–36.7] 71* [66–80] 2.7 [2.1–3.3]
 40 mmHg 61 [59–67] 100* [100–100] 140* [109–164] 36.4 [36.3–36.7] 72* [65–83] 2.6 [1.9–2.8]
 50 mmHg 64 [62–70] 100* [99–100] 120* [101–146] 36.5 [36.3–36.7] 68* [65–75] 2.6 [2.0–3.3]
  1. Values are medians [25th–75th percentile], rSO2 Regional brain saturation, SaO2 Arterial haemoglobin oxygen saturation, PaO2 Arterial partial pressure of oxygen, Temp patient temperature MAP mean arterial blood pressure, CI cardiac index (n = 8), * = p < 0.05 vs. corresponding value during non-pulsatile flow (ANOVA with post hoc Tukey test)