Table 3. Heart rate (HR), and systolic (SAP), diastolic (DAP) and mean (MAP) arterial blood pressure during the maintenance of anesthesia in 214 Thoroughbred racehorses of Group TG (n=91) and Group PK (n=123).
| Variable | Group | Time after connection to breathing circuit (min) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 15 | 30 | 45 | 60 | |||||||||||||
| HR | (beats/min) | TG | 29 | (23–36) | A | 28 | (17–41) | AB | 27 | (15–36) | B | 28 | (20–36) | AB | 28 | (22–37) | AC |
| PK | 28 | (18–33) | A | 27 | (15–40) | A | 27 | (15–45) | A | 27 | (17–46) | A | 28 | (20–37) | A | ||
| SAP | (mmHg) | TG | NR | 92 | (70–112) | A | 97 | (63–115) | B | 100 | (85–137) | C | 102 | (80–125) | C | ||
| PK | NR | 100 | (73–138) | A* | 100 | (72–125) | A* | 102 | (85–133) | AB | 103 | (84–137) | B | ||||
| DAP | (mmHg) | TG | NR | 50 | (33–78) | A | 53 | (26–77) | AB | 55 | (33–81) | B | 56 | (28–71) | B | ||
| PK | NR | 61 | (30–95) | A* | 59 | (39–78) | A* | 59 | (45–76) | A* | 59 | (47–76) | A* | ||||
| MAP | (mmHg) | TG | NR | 64 | (43–87) | A | 68 | (43–85) | AB | 70 | (50–86) | C | 71 | (51–88) | AB | ||
| PK | NR | 75 | (45–96) | A* | 73 | (49–96) | A* | 73 | (58–87) | A* | 75 | (56–85) | A* | ||||
Results are presented as median (range). Data indicated with the same uppercase letter are not significantly different from each other within the same row. *Significant difference from Group TG (P<0.05). NR: not recorded. For group definitions and doses of induction agents, see Table 1.