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Table 2 Effects of fluid administration on hemodynamic parameters in fluid responders and non-responders

From: Sigh maneuver to enhance assessment of fluid responsiveness during pressure support ventilation

Hemodynamic variables

Pre VE

Post VE

p values

R and NR baseline

p values

Pre and postVE

CI (L/min/m2)

 Responders

2.1 [2.0–2.2]

2.8 [2.5–3.4]

0.0006

0.0005

 Non-responders

2.8 [2.4–2.9]

2.7 [2.4–2.9]

0.24

SVI (mL/m2)

 Responders

24 [21–26]

38 [29–41]

0.001

0.0006

 Non-responders

34 [28–40]

35 [28–41]

0.08

MAP (mmHg)

 Responders

71 [64–76]

88 [80–94]

0.13

0.0005

 Non-responders

77 [69–86]

81 [72–89]

0.003

SAP (mmHg)

 Responders

106 [98–124]

132 [122–149]

0.23

<  0.0001

 Non-responders

115 [106–126]

128 [113–140]

<  0.0001

HR (beats/min)

 Responders

90 [83–92]

85 [79–88]

0.01

0.02

 Non-responders

73 [63–87]

71 [64–82]

0.14

PPV (%)

 Responders

8.2 [5.6–14.8]

7.0 [5.8–10.6]

0.94

0.04

 Non-responders

9.8 [7.0–17.4]

5.1 [4.3–7.7]

0.007

  1. Data presented as median (25th – 75th IQR) unless otherwise specified
  2. IQR interquartile, R responders, NR non-responders, VE volume expansion, CI cardiac index, SVI stroke volume index, MAP mean arterial pressure, SAP systolic arterial pressure, HR heart rate, PPV pulse pressure variation, VE volume expansion