Table 3.
Relationship (p value) between cerebral and physiological measures, and clinical factors (univariate analysis) during chest-drain removal.
| Parameter | Δ[HbO2] | Δ[HbH] | ΔMAP | ΔHR | ΔSaO2 |
|---|---|---|---|---|---|
| T1–T0 | |||||
| ΔMAP | |||||
| ΔHR | 0.19 (.035)1 | ||||
| ΔSaO2 | |||||
| Morphine | −137.78 (.005)1 | ||||
| Midazolam | −114.87 (.017)1 | −71.27 (.012) | |||
| Age | |||||
| Weight | 4.6 (.032) | ||||
| T2–T0 | |||||
| ΔMAP | |||||
| ΔHR | |||||
| ΔSaO2 | |||||
| Morphine | |||||
| Midazolam | |||||
| Age | −1.94 (.044)1 | ||||
| Weight | 3.93 (.029) | −1.46 (.002) | |||
| T2–T1 | |||||
| ΔMAP | |||||
| ΔHR | |||||
| ΔSaO2 | |||||
| Morphine | −82.54 (.002)1 | −90.24 (.022) | |||
| Midazolam | 105.97 (.029)1 | −63.7 (.015)1 −137.49 (.008)2 |
−146.63 (.005) | ||
| Age | 2.9 (.044) | ||||
| Weight | −1.11 (.017) | ||||
1
Left hemisphere;
2
Right hemisphere;
[HbO2]: oxygenated hemoglobin concentration; [HbH]: deoxygenated hemoglobin concentration; MAP: mean arterial blood pressure; HR: heart rate; SaO2 arterial blood oxygen saturation.
T0 baseline; T1 tactile stimulus; T2 noxious stimulation (chest-drain removal).