Table 2 Respiratory and cardiovascular variables (mean ± standard deviation, median (min-max)) over time in rabbits under isoflurane anaesthesia
Baseline | Before incision | At incision | During surgery | End of surgery | ||
|---|---|---|---|---|---|---|
Respiratory rate (breath/minute) | ||||||
LMA | 136 ± 56 | 31 ± 11 | 21 ± 8 | 26 ± 4 | 30 ± 14 | |
ETT | 148 ± 43 | 24 ± 8 | 17 ± 9 | 29 ± 5 | 40 ± 12 | |
PE’CO2 (mmHg) | ||||||
LMA | – | 45 ± 7 | 48 ± 14 | 49 ± 9 | 46 ± 8 | |
ETT | – | 52 ± 9 | 60 ± 15 | 54 ± 14 | 50 ± 15 | |
FE’ISO (vol/vol%) | ||||||
LMA | – | 0.2 (0–1) | 0.5 (0-1.1) | 0.7 (0.1–1.1) | 0.2 (0-0.9) | |
ETT | – | 0.1 (0-1.4) | 0.8 (0.5–2.5) | 0.9 (0.1–1.5) | 0.7 (0.1–1.5) | |
Pulse rate (beats/minute) | ||||||
LMA | 187 ± 29 | 190 ± 12 | 196 ± 13 | 201 ± 13 | 198 ± 9 | |
ETT | 178 ± 33 | 171 ± 27 | 186 ± 24 | 190 ± 25 | 191 ± 22 | |
Systolic arterial pressure (mmHg) | ||||||
LMA | – | 85 ± 14 | 92 ± 20 | 85 ± 16 | 91 ± 17 | |
ETT | – | 95 ± 21 | 102 ± 22 | 92 ± 19 | 91 ± 14 | |
Diastolic arterial pressure (mmHg) | ||||||
LMA | – | 53 ± 18 | 60 ± 17 | 48 ± 12 | 53 ± 17 | |
ETT | – | 63 ± 17 | 66 ± 15 | 54 ± 20 | 50 ± 17 | |
Mean arterial pressure (mmHg) | ||||||
LMA | – | 63 ± 14 | 71 ± 17 | 60 ± 14 | 65 ± 17 | |
ETT | – | 74 ± 17 | 76 ± 18 | 66 ± 19 | 63 ± 15 | |