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Table 5 Haemodynamic and respiratory gas modifications at the four time points of the study: subgroups B1 and B2

From: Pruritus: a useful sign for predicting the haemodynamic changes that occur following administration of vancomycin

  

Time point

Parameter

Group

1

2

3

4

HR (beats/min)

B1

62 ± 10

60 ± 12

62 ± 10

59 ± 9

 

B2

70 ± 10

67 ± 11

66 ± 12

66 ± 11

MSP (mmHg)

B1

90 ± 18

91 ± 20

91 ± 21

95 ± 20

 

B2

84 ± 18

83 ± 18

84 ± 20

86 ± 21

SVRI (dynes· s/cm5 per m2)

B1

2511 ± 562

2623 ± 519

2392 ± 380

2607 ± 415

 

B2

2884 ± 1200

3021 ± 1600

2842 ± 1253

2980 ± 1160

CI (l/min per m2)

B1

2.80 ± 0.5

2.69 ± 0.4

2.90 ± 0.5

2.70 ± 0.4

 

B2

2.46 ± 0.6

2.36 ± 0.6

2.49 ± 0.7

2.40 ± 0.6

SVI (ml/beat per m2)

B1

46 ± 10

46 ± 8

47 ± 7

46 ± 8

 

B2

36 ± 8

36 ± 9

38 ± 11

37 ± 10

PVRI (dynes·s/cm5 per m2)

B1

218 ± 64

227 ± 76

253 ± 77

242 ± 96

 

B2

296 ± 183

365 ± 228

320 ± 197

332 ± 207

PaO2 (mmHg)

B1

75.3 ± 12

74.4 ± 13

73 ± 13

73 ± 12

 

B2

73.6 ± 13

72 ± 13

73.4 ± 10

70 ± 9

SaO2 (%)

B1

95 ± 2

94.5 ± 2

94.4 ± 2

94.7 ± 2

 

B2

94.5 ± 2

94 ± 2

94.6 ± 2

94 ± 2

Qsp/Qt (%)

B1

16 ± 7

17 ± 8

17 ± 7

16 ± 7

 

B2

16 ± 5

17 ± 6

16 ± 6

17 ± 4

  1. No significant difference was observed within the two groups. See text for definitions of groups, subgroups and time points. CI, cardiac index; HR, heart rate; MSP, mean systemic pressure; PaO2, arterial oxygen tension; PVRI, pulmonary vascular resistance index; Qsp/Qt, shunt fraction; SaO2, arterial oxygen saturation; SVI, stroke volume index; SVRI, systemic vascular resistance index.
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Critical Care

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