An 8-year-old, male, neutered Argentinian polo pony underwent two ocular surgeries due to a fungal abscess. The horse was on treatment with fluconazole before and during the time when the two anaesthetic procedures took place. The only difference between anaesthetic events was the induction agent. During the first anaesthetic procedure, ketamine was used. However, during the second anaesthetic procedure, due to ocular fragility sodium thiopental was preferred to avoid increase in intraocular pressure. The first anaesthetic duration was 130 minutes, and standing was achieved after 20 minutes of isoflurane discontinuation, with no complications. The second anaesthetic procedure lasted for 60 minutes, but standing was not achieved until 70 minutes after isoflurane discontinuation. The horse was ataxic with muscle weakness for 6 hours after standing. However, the horse recovered successfully and was discharged 2 months after the first surgical procedure.

A 12‐year‐old French Bulldog presented for a mandibulectomy due to a large ameloblastoma in the left rostral mandibular body. Preoperative pain management consisted of methadone 0.2 mg/kg and a mandibular nerve block with ropivacaine 0.5%. Intraoperatively, an indwelling perineural catheter was placed through the mandibular canal, with the tip placed in the mandibular foramen for postoperative ropivacaine administration. Ropivacaine 0.2% was administered every 6 hours for the first 36 hours without need of any systemic analgesic administration, providing adequate analgesia and allowing for a rapid recovery. The dog was completely alert and responsive in the immediate postoperative period and started eating 12 hours after surgery without any sign of pain or discomfort. No complications were observed during the postoperative period. The perineural catheter was removed after 40 hours and the dog was administered metamizole every 8 hours for analgesia and was discharged 48 hours after surgery.