Table 3.
Correlation coefficient (Spearman’s ρ) of microcirculatory and other measured variables during baseline, n = 18
| ABP | CBF | Lactate | HGB | Cerebral T | |
|---|---|---|---|---|---|
| Small vessels (≤20 µm) | |||||
| TVD (mm/mm2) | 0.07 | −0.46 | 0.29 | 0.15 | 0.11 |
| PVD (mm/mm2) | 0.06 | −0.40 | 0.24 | 0.16 | 0.09 |
| PPV (%) | −0.32 | 0.22 | −0.28 | −0.41 | −0.03 |
| MFI | 0.05 | 0.18 | −0.22 | −0.25 | −0.19 |
| HI | −0.09 | 0.20 | −0.29 | −0.15 | −0.32 |
| Other vessels (>20 µm) | |||||
| TVD (mm/mm2) | −0.33 | 0.24 | −0.05 | −0.30 | −0.03 |
| PVD (mm/mm2) | −0.34 | 0.27 | −0.05 | −0.30 | −0.07 |
| PPV (%) | 0.15 | 0.43 | 0.47 | 0.33 | 0.23 |
| MFI | 0.23 | 0.25 | −0.13 | −0.02 | −0.06 |
| HI | 0.10 | 0.26 | −0.39 | −0.13 | −0.18 |
After Bonferroni adjustment for multiple correlations all correlations are non-significant
TVD total vessel density, PVD perfused vessel density, PPV proportion of perfused vessels, MFI microvascular flow index, ABP mean arterial blood pressure, CBF carotid blood flow, HGB hemoglobin level, T temperature