Comparison between analgesic effects of buprenorphine, carprofen, and buprenorphine with carprofen for canine ovariohysterectomy.
OBJECTIVE
To compare the analgesic effects of buprenorphine, carprofen, and their combination in dogs undergoing ovariohysterectomy.


METHODS
Prospective, randomized blinded clinical study.


METHODS
60 dogs.


METHODS
Treatments were buprenorphine 0.02 mg kg(-1), intramuscularly (IM) (group B); carprofen 4 mg kg(-1), subcutaneously (SC) (group C); or a combination of both (group CB). Anesthesia was induced with propofol and maintained with isoflurane. A Dynamic Interactive Visual Analog Scale (DIVAS, 0-100 mm) and the Glasgow Composite Pain Scale (GCMPS, 0-24) were used to evaluate comfort and sedation at baseline, 2, 4, 6, and 24 hours after extubation. Rescue analgesia was provided with buprenorphine (0.02 mg kg(-1)). Wound swelling measurements (WM) and a visual inflammation score (VIS) of the incision were made after surgery and 2, 4, 6, and 24 hours later. p < 0.05 was considered significant.


RESULTS
Group C required more propofol (5.0 +/- 1.4 mg kg(-1)) compared with B (3.3 +/- 1.1 mg kg(-1)) and CB (3.2 +/- 0.7 mg kg(-1)); respectively, p = 0.0002 and 0.0001. Rescue analgesia was required in nine dogs. B had a higher GCMPS and DIVAS III score at 6 hours (2.6 +/- 2.5) and (23 +/- 22.5 mm) compared with C (1.0 +/- 1.3, 6 +/- 7.3 mm) and CB (1.5 +/- 1.4, 8 +/- 10.7 mm); respectively, p = 0.02 and 0.006. Group C had a lower sedation score at 2 hours (43 +/- 23.6 mm) compared with B (68 +/- 32.1 mm) and BC (69 +/- 22.1 mm); respectively, p = 0.03 and 0.004. Group B had a higher WM score at 2 hours (3 +/- 0.8 mm) compared with C (2 +/- 0.6 mm) p = 0.01 and at 6 hours (3 +/- 1 mm) compared with C (2 +/- 0.8 mm) and CB (2 +/- 0.8 mm); respectively, p = 0.01 and 0.008. VIS was not different between groups.


CONCLUSIONS
All treatments provided satisfactory analgesia for the first 6 hours and at 24 hours. C and CB pain score and WS were superior to B at 6 hours. No superior analgesic effect was noted when the drugs were combined.
Shih
Andre C
AC
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610-136, USA. shiha@mail.vetmed.ufl.edu
Robertson
Sheilah
S
Isaza
Natalie
N
Pablo
Luisito
L
Davies
Wendy
W
D000701:Analgesics, Opioid / Q000008:administration & dosage*; D000768:Anesthesia, General / Q000662:veterinary; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage*; D002047:Buprenorphine / Q000008:administration & dosage*; D002227:Carbazoles / Q000008:administration & dosage*; D004285:Dogs / Q000502:physiology* / Q000601:surgery; D004359:Drug Therapy, Combination; D005260:Female; D007044:Hysterectomy / Q000662:veterinary; D007273:Injections, Intramuscular / Q000662:veterinary; D007279:Injections, Subcutaneous / Q000662:veterinary; D010147:Pain Measurement / Q000662:veterinary; D010149:Postoperative Pain / Q000517:prevention & control / Q000662:veterinary; D011229:Preanesthetic Medication / Q000662:veterinary; D011446:Prospective Studies; D016896:Treatment Outcome
D000701:Analgesics, Opioid; D000894:Anti-Inflammatory Agents, Non-Steroidal; D002227:Carbazoles; D002047:Buprenorphine; C007005:carprofen