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Table 3 Correlation coefficient (Spearman’s ρ) of microcirculatory and other measured variables during baseline, n = 18

From: Microcirculatory blood flow during cardiac arrest and cardiopulmonary resuscitation does not correlate with global hemodynamics: an experimental study

  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
  1. After Bonferroni adjustment for multiple correlations all correlations are non-significant
  2. 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