Table 2. Number of perioperative analgesic interventions provided in cats undergoing ovariohysterectomy treated with 0.33% levobupivacaine (0.3 mL/kg) administered into the sacrococcygeal epidural space (S-C group, n=12) or lumbosacral epidural space (L-S group, n=12), or 0.9% saline solution into one of the epidural approaches (Control group, n=12).
| Group | Intraoperative time points |
Postoperative time points |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T0 | T1 | T2 | T3 | T4 | T5 | 0.5 hr | 1 hr | 2 hr | 4 hr | 6 hr | 8 hr | |
| S-C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 0 | 0 |
| L-S | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 0 |
| Control | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 2 | 3 | 1 | 0 | 0 |
Intraoperative time points: T0 =before surgical stimulation, 10 min after epidural injection, with the cats maintained with 1.1% of end-tidal isoflurane concentration, T2 and T3 =after the clamping of first and second ovarian pedicles, respectively, T4 =after the clamping of the uterine cervix, and T5=after the last skin suture was placed. Postoperative time points: 0.5, 1, 2, 4, 6, and 8 hr post-extubation.