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Table 3 Parameters of conjunctival microcirculation at baseline, in haemorrhagic shock, and after resuscitation

From: Feasibility of optical coherence tomography angiography to assess changes in retinal microcirculation in ovine haemorrhagic shock

 

Time point

Parameter (unit)

Baseline

Haemorrhagic shock

Resuscitation

TVD (mm∙mm−2)

15.4 (13.7; 17.3)

18.5 (15.1; 19.5)

16.3 (15.3; 18.6)

PVD (mm∙mm−2)

15.4 (13.4; 17.3)

12.1 (10.0; 13.8)

16.0 (15.2; 18.3)

PPV (%)

100.0 (98.0; 100.0)

72.0 (57.4; 76.3)*

98.7 (97.3; 99.1)

MFI

3.1 (3.0; 3.3)

1.9 (1.9; 2.1)*

3.0 (3.0; 3.3)

HI

0.10 (0.05; 0.16)

0.51 (0.24; 0.73)*

0.12 (0.33; 0.37)

  1. Values presented as median (interquartile range)
  2. HI heterogeneity index, MFI microvascular flow index, PPV proportion of perfused vessel, PVD perfused vessel density, TVD total vessel density
  3. *Significant difference vs baseline