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Table 2 Effects of volume expansion in hemodynamic parameters on responder patients (mean arterial pressure increase ≥15%) and nonresponder patients (n = 25)a

From: Dynamic arterial elastance to predict arterial pressure response to volume loading in preload-dependent patients

Parameter

Preinfusion

Postinfusion

CO, L/min

  

   Responders

5.06 ± 1.64

6.26 ± 1.35d

   Nonresponders

5.38 ± 1.94

6.23 ± 2.40c

HR, beats/min

  

   Responders

107.12 ± 22.73

96.15 ± 23.97c

   Nonresponders

99.52 ± 23.65

93.56 ± 24.11c

SV, mL

  

   Responders

48.85 ± 18.04

67.56 ± 21.39e

   Nonresponders

56.68 ± 28.34

69.44 ± 33.96d

MAP, mmHg

  

   Responders

57.41 ± 5.66

75.41 ± 14.88e,f

   Nonresponders

58.65 ± 10.49

62.01 ± 12.46b

SAP, mmHg

  

   Responders

82.43 ± 11.36

112.28 ± 19.99e,g

   Nonresponders

83.9 ± 10.96

89.47 ± 14.82

DAP, mmHg

  

   Responders

45.68 ± 7.67

55.43 ± 14.01d

   Nonresponders

45.6 ± 10.09

46.14 ± 11.72

PP, mmHg

  

   Responders

36.76 ± 14.63

56.82 ± 17.8e

   Nonresponders

38.29 ± 11.51

43.22 ± 13.49

CVP, mmHg

  

   Responders

7.13 ± 4.73

10.35 ± 4.69e

   Nonresponders

7.33 ± 2.9

10.41 ± 2.23c

CPO, W

  

   Responders

0.64 ± 0.22

1.04 ± 0.27e

   Nonresponders

0.69 ± 0.25

0.84 ± 0.33c

PPV, %

  

   Responders

25.26 ± 9.89f

9.38 ± 4.45e

   Nonresponders

15.07 ± 6.56

6.81 ± 4.47c

SVV, %

  

   Responders

19.14 ± 6.25

10.87 ± 4.55e

   Nonresponders

19.78 ± 7.59

10.52 ± 5.39c

  1. aData are expressed as means ± standard deviations; CO, cardiac output; HR, heart rate; SV, stroke volume; MAP, mean arterial pressure; SAP, systolic arterial pressure; DAP, diastolic arterial pressure; PP, arterial pulse pressure (diastolic pressure minus systolic pressure); CVP, central venous pressure; CPO, cardiac power output (mean arterial pressure × cardiac output/451); PPV, pulse pressure variation; SVV, stroke volume variation; bP < 0.05; cP < 0.01; dP < 0.001; eP < 0.0001, postinfusion vs. preinfusion; fP < 0.05; gP < 0.01 responders (mean arterial pressure increase ≥15% after volume expansion) vs. nonresponders.