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Table 3 Effects of volume expansion in dynamic parameters of preload (n = 38)

From: Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients

  Pre VE Post VE
ΔPP rad , %   
   Responders 18.29 (15.66 to 24.42)†† 8.58 (4.59 to 12.05) † ***
   Nonresponders 4.74 (2.32 to 6.95) 3.15 (0.96 to 5.24)*
ΔVpeak brach , %   
   Responders 13.94 (9.88 to 18.83)†† 6.95 (5.29 to 9.38)***
   Nonresponders 7.76 (6.24 to 8.29) 5.52 (4.38 to 7.66)*
ΔSV Vigileo , %   
   Responders 13 (11.75 to 21.17)†† 9.33 (7.08 to 11.50) †† ***
   Nonresponders 7.67 (6.75 to 9.5) 5.67 (4.67 to 6.59)**
  1. Data are expressed as median with interquartile range (25th to 75th percentiles). * P < 0.05, ** P < 0.001, *** P < 0.0001 post VE vs pre VE. † P < 0.001, †† P = 0.0001 responders vs nonresponders.
  2. ΔPPrad :radial artery pulse pressure variation; ΔSVVigileo :stroke volume variation measured with FloTrac/Vigileo® monitoring system; ΔVpeakbrach :brachial artery peak velocity variation; VE: volume expansion.