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Table 1 Isoflurane concentrations in the anesthetist's breathing zone

From: A scavenging double mask to reduce workplace contamination during mask induction of inhalation anesthesia in dogs

Group S

Group NS

Dog

Baseline

Induction mean

Induction max

Dog

Baseline

Induction mean

Induction max

1

0.5 ± 0.1

0.7 ± 0.1 (122)

1.0 (180)

7

2.9 ± 2.0

16.9 ± 14.3 (587)

39.4 (1365)

2

1.2 ± 0.1

1.5 ± 0.5 (127)

2.2 (191)

8

1.5 ± 0.1

10.4 ± 7.6 (692)

23.7 (1587)

3

1.7 ± 0.4

2.1 ± 0.3 (128)

2.7 (162)

6

2.3 ± 0.2

19.4 ± 16.1 (858)

43.7 (1936)

4

2.5 ± 0.4

2.6 ± 0.5 (107)

3.2 (130)

10

3.1 ± 0.7

8.8 ± 4.0 (289)

15.3 (503)

5

2.5 ± 0.2

2.8 ± 0.6 (115)

4.1 (165)

11

1.9 ± 0.1

8.5 ± 4.8 (461)

17.1 (925)

6

2.6 ± 0.2

2.5 ± 0.3 (96)

2.8 (108)

12

2.3 ± 0.3

3.2 ± 2.1 (141)

8.3 (366)

 

mean ± SD 1.8 ± 0.8

mean ± SD 2.0 ± 0.8

mean ± SD 2.7 ± 1.0

 

mean ± SD 2.3 ± 0.6

mean ± SD 11.2 ± 6.0a,b

mean ± SD 24.6 ± 14.1a,b

  1. Mean ± SD isoflurane values for Group S (scavenging activated) and Group NS (scavenging disabled) in parts per million (ppm) and percent of baseline value. Mean isoflurane concentration during five min before (baseline) and eight min of mask induction (Induction mean).Maximum isoflurane concentration recorded during mask induction (Induction max).
  2. a: significantly different from group S (p < 0.01)
  3. b: significantly different from the baseline (p < 0.01)
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Acta Veterinaria Scandinavica

ISSN: 1751-0147