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Table 2 Haemodynamic variables during the study period

From: Assessment of cardiac output changes using a modified FloTrac/Vigileo™ algorithm in cardiac surgery patients

Set

Variables

Supine 1

Head-up

Head-down

Supine 2

A

FCO (L/minute)

5.5 (0.8)

4.7 (0.7)a

6.4 (1.1)a, b

5.5 (0.8) b, c

 

PCO (L/minute)

5.4 (0.8)

4.9 (0.8)a

5.8 (0.9)a, b

5.4 (0.9) b, c

 

ICO (L/minute)

5.7 (1.1)

5.0 (0.9)a

6.1 (1.1)a, b

5.6 (1.1) b, c

 

HR (beats/minute)

86 (8)

87 (10)

88 (9)

89 (9)

 

MAP (mmHg)

75 (9)

68 (10)a

77 (10) b

74 (10)

 

CVP (mmHg)

10 (4)

6 (3)a

11 (4) a, b

8 (3)c

 

SVR (dyn sec/cm-5)

933 (170)

985 (207)

884 (235) b

953 (145)

B

FCO (L/minute)

5.6 (1.0)

4.7 (0.9)a

5.1 (0.9)a, b

5.4 (1.2) b, c

 

PCO (L/minute)

5.5 (1.2)

4.7 (1.2)a

5.3 (1.4)a, b

5.5 (1.4) b, c

 

ICO (L/minute)

5.8 (1.1)

4.3 (1.1)a

5.0 (1.3)a, b

5.3 (1.5) b, c

 

HR (beats/minute)

88 (7)

67 (16)

82 (12)

89 (7)

 

MAP (mmHg)

76 (5)

74 (11)

72 (7) b

72 (8)

 

CVP (mmHg)

9 (3)

7 (4)a

10 (3)a, b

8 (4)

 

SVR (dyn sec/cm-5)

969 (175)

1001 (186)

960 (196)

1008 (195)

  1. CVP = central venous pressure; FCO = cardiac output assessed by the FloTrac/Vigileo™ device; HR = heart rate; ICO = cardiac output determined by the intermittent thermodilution; MAP = mean arterial pressure; PCO = cardiac output assessed by the PiCCOplus™ system; SVR = systemic vascular resistance. Data are presented as mean (standard deviation).
  2. a P < 0.05 compared with supine 1 position; b P < 0.05 compared with head-up position; c P < 0.05 compared with head-down position.