Table 7.
Summarization of the degree of jaw tonea
| Jaw tone response | Observer | Method of induction, No. of dogs (%) | |||||
|---|---|---|---|---|---|---|---|
| Initial P | Initial M | Second P + S | Second P + D | Second M + S | Second M + D | ||
| 0 | DRD | 9 (47.3) | 14 (70) | 6 (66.7) | 4 (40) | 7 (70) | 7 (77.8) |
| MBB | 12 (60) | 15 (83.3) | 6 (60) | 5 (50) | 8 (88.9) | 7 (87.5) | |
| 1 | DRD | 9 (47.4) | 6 (30) | 3 (33.3) | 6 (60) | 3 (30) | 2 (22.2) |
| MBB | 7 (35) | 3 (16.7) | 2 (20) | 5 (50) | 1 (11.1) | 1 (12.5) | |
| 2 | DRD | 1 (5.3) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| MBB | 1 (5) | 0 (0) | 2 (2) | 0 (0) | 0 (0) | 0 (0) | |
| 3 | DRD | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| MBB | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
| Total responses | DRD | 19 | 20 | 9 | 10 | 10 | 9 |
| MBB | 20 | 18 | 10 | 10 | 9 | 8 | |
| P value | .23 | .469 | |||||
D, doxapram; M, methohexital; P, propofol; S, saline.
a
Identified between direct observers (DRD and MBB) in initial and second evaluations of groups P and M. Jaw tone was scored as 0 = no jaw tone, 1 = slight jaw tone, 2 = moderate jaw tone, and 3 = excessive jaw tone. The first observer (DRD) was not available for evaluation of 1 dog in the P group, yielding 39 dogs in total that were evaluated. The second observer (MBB) was absent for evaluation of 2 dogs in the M group, yielding 38 dogs in total that were evaluated. Both observers (DRD and MBB) did not record 1 second evaluation for a dog in the M + D group because this dog vomited and developed signs of seizure‐like activity.