Table 1 Physiological parameters during surgical preparation, before, and after SAH

Preparation

0 min

60 min

180 min

0 min

60 min

180 min

Ventilation rate (v/min)

chloral hydrate

36 ± 1

36 ± 2

46 ± 3*

47 ± 3*

37 ± 1

39 ± 2

42 ± 4*

isoflurane

35 ± 2

44 ± 4*

51 ± 2*

58 ± 2*

44 ± 2

43 ± 2

47 ± 3*

MMF

32 ± 2

30 ± 2

29 ± 2

27 ± 1

35 ± 3

35 ± 4

34 ± 3

Art. pCO₂ (mmHg)

chloral hydrate

36.9 ± 2.9

41.6 ± 2.8

41.8 ± 2.5

40.8 ± 3.4

40.5 ± 1.7

41.7 ± 2.2

43.2 ± 3.0

isoflurane

44.2 ± 1.9

45.1 ± 3.1

41.7 ± 4.0

42.9 ± 2.7

38.6 ± 0.8

44.1 ± 2.0

42.4 ± 2.9

MMF

40.3 ± 3.1

37.1 ± 1.2

34.5 ± 2.4

37.8 ± 3.3

41.7 ± 0.6

44.3 ± 2.3

43.3 ± 3.1

Art. pO₂ (mmHg)

chloral hydrate

136.6 ± 4.1

120.3 ± 3.4

116.0 ± 6.3#

113.1 ± 4.7#

125.1 ± 6.8#

116.5 ± 7.1#

109.6 ± 9.4

isoflurane

121.1 ± 4.2

105.1 ± 7.8

89.6 ± 2.8

86.4 ± 3.9

99.8 ± 5.3

92.3 ± 3.1

90.1 ± 5.6

MMF

125.6 ± 9.5

122.2 ± 9.7

135.6 ± 8.8#

135.4 ± 6.7#

105.2 ± 8.0

106.2 ± 6.9#

116.1 ± 9.5

pH

chloral hydrate

7.29 ± 0.03

7.30 ± 0.02

7.29 ± 0.02

7.28 ± 0.03

7,34 ± 0,02

7.33 ± 0.01

7,28 ± 0,02

isoflurane

7.29 ± 0.02

7.32 ± 0.05

7.33 ± 0.04

7.35 ± 0.03

7,33 ± 0,01

7.29 ± 0.01

7,31 ± 0,03

MMF

7.34 ± 0.07

7.37 ± 0.01

7.35 ± 0.02

7.35 ± 0.01

7,37 ± 0,02

7.34 ± 0.04

7,35 ± 0,01

Glucose (mg/dl)

chloral hydrate

196 ± 24

231 ± 20

169 ± 14

115 ± 16

186 ± 27

162 ± 23

138 ± 18

isoflurane

165 ± 20

158 ± 20

120 ± 10

114 ± 6

131 ± 15

121 ± 9

128 ± 8

MMF

196 ± 51

191 ± 37

156 ± 23

174 ± 26

208 ± 43

173 ± 17

181 ± 24

Lactate ( mmol/l)

chloral hydrate

1.0 ± 0.1

1.1 ± 0.1

0.8 ± 0.1

0.6 ± 0.1

1.2 ± 0.3

1.4 ± 0.3

0.7 ± 0.1

isoflurane

1.0 ± 0.1

1.3 ± 0.1

1.4 ± 0.2

1.5 ± 0.3

1.2 ± 0.3

0.8 ± 0.1

1.0 ± 0.0

MMF

0.5 ± 0.1

0.6 ± 0.0

0.7 ± 0.1

0.8 ± 0.2

0.6 ± 0.0

1.1 ± 0.1

0.8 ± 0.2