Table 3.
Near infrared spectroscopy parameters
| Characteristics | Shock Patients (n = 20) |
Non- shock Patients (n = 20) |
P value |
|---|---|---|---|
| THI | 11.3 (9.6–14.1) | 13.7 (10.5–15.0) | 0.039a |
| StO2 (%) | 81 (76–83) | 86 (76–90) | 0.044a |
| StO2 min (%) | 50 (47–57) | 55 (53–65) | 0.038b |
| StO2 max (%) | 87 (80–92) | 93 (90–95) | 0.017a |
| Descending slope (%/min) | 7.9 (6.7–9.4) | 8.4 (6.0–9.8) | 0.965b |
| Ascending slope (%/s) | 2.1 (1.2–3.1) | 2.2 (1.6–3.4) | 0.559a |
| Recovery time (s) | 24.0 (16.0–32.0) | 16.5 (13.0–24.0) | 0.093b |
| StO2max–StO2min (%) | 7 (5–11) | 7 (4–12) | 0.926a |
| Hyperemia area | 8.6 (4.7–15.2) | 8.9 (4.0–13.3) | 1.000b |
Values represent median (IQR)
THI tissue hemoglobin index, StO2 tissue oxygen saturation, StO2min minimum StO2 after arterial occlusion test, StO2max maximum StO2 after arterial occlusion
P values were calculated with the use of (a) independent t test and (b) Mann–Whitney U test