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Table 3 Sidestream dark field variables

From: A high mean arterial pressure target is associated with improved microcirculation in septic shock patients with previous hypertension: a prospective open label study

 

MAP = 65 mmHg

Usual MAP

P

Small vessel density (vessels/mm2)

11.29 ± 2.18

11.91 ± 2.14

0.129

Total vessel density (vessels/mm2)

12.35 ± 2.29

12.76 ± 2.09

0.227

Small perfused vessel density (vessels/mm2)

10.96 ± 2.98

11.99 ± 2.55*

0.009

Total perfused vessel density (vessels/mm2)

11.34 ± 3.03

12.24 ± 2.55*

0.021

Proportion of small perfused vessels (%)

85 ± 18

92 ± 14*

0.002

Proportion of total perfused vessels (%)

92 ± 18

96 ± 12*

0.029

Small microvascular flow index

2.45 ± 0.61

2.80 ± 0.68*

0.009

Total microvascular flow index

2.70 ± 0.52

3.05 ± 0.51*

0.002

Heterogeneity index of small diameter vessels

0.59 ± 0.32

0.47 ± 0.27

0.145

Heterogeneity index of total diameter vessels

0.36 ± 0.27

0.30 ± 0.19

0.330

  1. *P < 0.05 versus baseline of mean arterial pressure 65 mmHg. MAP, mean arterial pressure. Data presented as means ± SD.