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Table 2 Subgroup analysis of hemodynamic data

From: Observations on significant hemodynamic changes caused by a high concentration of epidurally administered ropivacaine: correlation and prediction study of stroke volume variation and central venous pressure in thoracic epidural anesthesia

 

0.75% ropivacaine

 

0.375% ropivacaine

 

0.2% ropivacaine

 
 

< 60 yrs

> 60 yrs

P value

< 60 yrs

> 60 yrs

P value

< 60 yrs

> 60 yrs

P value

 Age (yrs)

50.3 ± 10.5

68.0 ± 6.1

 

45.5 ± 14.8

69.1 ± 5.0

 

50.1 ± 9.7

70.3 ± 4.9

 

MAP (mmHg)

  

0.190

  

0.577

  

0.851

    Load

87.9 ± 13.2

94.1 ± 16.5

 

90.2 ± 14.8

90.1 ± 12.3

 

92.5 ± 17.9

94.7 ± 14.1

 

    10 min

76.1 ± 14.8

69.7 ± 18.9

 

71.2 ± 12.3

74.4 ± 15.9

 

75.8 ± 14.7

81.4 ± 16.0

 

    20 min

75.3 ± 16.7

65.7 ± 11.8

 

70.3 ± 15.5

72.7 ± 14.9

 

74.1 ± 15.3

82.7 ± 17.4

 

    30 min

76.0 ± 14.8

72.4 ± 16.3

 

81.0 ± 26.0

72.9 ± 14.3

 

73.8 ± 12.2

77.7 ± 15.9

 

CVP (mmHg)

  

0.011

  

0.225

  

0.300

    Load

4.7 ± 2.7

4.8 ± 2.4

 

4.1 ± 1.9

4.5 ± 2.7

 

5.8 ± 2.7

3.9 ± 1.8

 

10 min

4.7 ± 2.7

4.4 ± 2.9

 

3.4 ± 2.3

4.2 ± 3.1

 

5.3 ± 2.7

4.1 ± 2.3

 

    20 min

4.5 ± 2.9

3.9 ± 2.3

 

3.6 ± 2.0

4.6 ± 3.0

 

5.3 ± 2.4

5.1 ± 2.8

 

    30 min

5.0 ± 2.8

4.1 ± 2.2

 

4.1 ± 2.5

4.5 ± 3.0

 

5.5 ± 2.9

5.2 ± 2.6

 

SVV (%)

  

0.032

  

0.522

  

0.885

    Load

7.5 ± 2.9

9.2 ± 3.0

 

10.6 ± 6.7

7.9 ± 3.6

 

8.2 ± 2.2

9.3 ± 3.7

 

    10 min

10.4 ± 5.8

13.8 ± 7.3

 

8.5 ± 2.0

9.8 ± 5.2

 

9.5 ± 3.6

9.5 ± 4.2

 

    20 min

8.9 ± 3.9

14.1 ± 7.6

 

7.7 ± 2.2

8.5 ± 2.8

 

7.6 ± 2.0

9.8 ± 5.0

 

    30 min

11.0 ± 6.2

12.3 ± 5.8

 

7.8 ± 2.7

10.2 ± 3.6

 

8.6 ± 2.3

8.5 ± 2.9

 

SVRI (dynes-sec/cm–5/m2)

  

0.024

  

0.011

  

0.320

    Load

1847.7 ± 500.1

2300.0 ± 634.6

 

2098.3 ± 660.7

2536.0 ± 659.3

 

2124.8 ± 558.0

2604.2 ± 634.1

 

    10 min

1811.4 ± 453.0

2026.5 ± 553.4

 

1898.6 ± 696.8

2189.9 ± 512.9

 

1828.0 ± 458.9

2456.8 ± 703.5

 

    20 min

1978.6 ± 374.4

1941.4 ± 344.0

 

1977.8 ± 747.1

2173.1 ± 282.9

 

1809.1 ± 407.1

2392.5 ± 469.1

 

    30 min

1967.1 ± 414.2

2140.2 ± 525.1

 

1945.0 ± 674.9

2185.6 ± 360.2

 

1888.4 ± 497.2

2342.4 ± 512.6

 

SVI (mL/beat/m2)

  

0.011

  

0.002

  

0.342

    Load

39.6 ± 9.0

35.2 ± 10.0

 

38.9 ± 11.4

33.5 ± 6.5

 

37.7 ± 8.7

34.4 ± 7.2

 

    10 min

38.4 ± 7.6

34.7 ± 6.9

 

39.3 ± 13.9

35.1 ± 7.2

 

41.7 ± 11.1

36.5 ± 9.0

 

    20 min

38.6 ± 8.9

34.1 ± 8.2

 

37.4 ± 11.2

34.6 ± 7.8

 

42.8 ± 11.7

38.8 ± 13.7

 

    30 min

37.7 ± 9.6

33.8 ± 8.8

 

40.8 ± 10.8

35.2 ± 6.0

 

41.8 ± 10.4

37.5 ± 5.9

 

CI (L/min/m2)

  

0.901

  

0.082

  

0.512

    Load

3.8 ± 0.9

3.2 ± 0.9

 

3.5 ± 1.1

2.8 ± 0.6

 

3.4 ± 0.8

2.9 ± 0.9

 

    10 min

3.3 ± 0.8

2.6 ± 0.6

 

3.1 ± 0.8

2.6 ± 0.5

 

3.2 ± 0.8

2.6 ± 0.6

 

    20 min

2.9 ± 0.6

2.5 ± 0.4

 

3.0 ± 1.0

2.5 ± 0.5

 

3.2 ± 1.0

2.6 ± 0.5

 

    30 min

2.9 ± 0.7

2.6 ± 0.5

 

3.3 ± 1.1

2.5 ± 0.4

 

3.1 ± 1.0

2.5 ± 0.6

 

HR (beats/min)

  

0.025

  

0.776

  

0.119

    Load

93.0 ± 13.0

87.3 ± 15.3

 

86.9 ± 12.6

81.6 ± 18.1

 

85.0 ± 13.2

85.5 ± 19.7

 

    10 min

83.5 ± 14.9

79.4 ± 17.0

 

74.0 ± 12.0

77.9 ± 16.9

 

76.9 ± 13.3

77.7 ± 22.4

 

    20 min

80.3 ± 18.1

78.2 ± 13.4

 

75.1 ± 16.1

77.8 ± 17.0

 

72.8 ± 11.5

72.7 ± 15.1

 

    30 min

80.1 ± 17.1

80.1 ± 16.6

 

77.5 ± 11.2

72.8 ± 13.0

 

74.5 ± 16.3

70.8 ± 16.2

 

Total-ephedrine (mg)

10.0 ± 13.5

9.0 ± 14.4

0.833

0.4 ± 1.4

2.6 ± 6.1

0.238

0.5 ± 2.2

0.0 ± 0.0

0.337