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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.
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Critical Care

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