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Table 3 Deoxygenation rate and reoxygenation rate when using different deflation thresholds

From: Characterization of tissue oxygen saturation and the vascular occlusion test: influence of measurement sites, probe sizes and deflation thresholds

 

Tissue oxygen saturation deflation threshold

 

Vascular occlusion test parameter

30%

40%

50%

P -value

DeO2 (%O2/minute)

-14.6 (-18.5, -11.6)

-12.8 (-16.2, -11.3)

-14.1 (-18.0, -11.9)

0.6

ReO2 (%O2/minute)

319.7 (258.2, 401.5)

297.2 (213.7, 328.6)a

242.5 (211.1, 296.2)a

0.01

Coefficient of variability for DeO2 (%)

34.4

26.1

39.3

 

Coefficient of variability for ReO2 (%)

30.1

21.5

21.0

 
  1. Data are presented as the median (interquartile range). DeO2, deoxygenation rate; ReO2, reoxygenation rate. aComparison of ReO2 obtained using deflation thresholds of 40% and 50% was not significant (P = 0.2).
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Critical Care

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