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Type: Journal article
Title: A randomized, blinded, controlled trial of the antiemetic effect of ondansetron on dexmedetomidine-induced emesis in cats
Author: Santos, L.
Ludders, J.
Erb, H.
Martin-Flores, M.
Basher, K.
Kirch, P.
Citation: Veterinary Anaesthesia and Analgesia, 2011; 38(4):320-327
Publisher: Wiley
Issue Date: 2011
ISSN: 1467-2987
Statement of
Luiz Cesar P Santos, John W Ludders, Hollis N Erb, Manuel Martin-Flores, Karen L Basher, and Pati Kirch
Abstract: Objective:  To determine the effect of ondansetron on the incidence of vomiting in cats pre-medicated with dexmedetomidine and buprenorphine. Study design:  Randomized, blinded, controlled trial. Animals:  Eighty-nine female domestic shorthair cats, aged 3–60 months (median, 12 months) and weighing 1.2–5.1 kg. Methods:  Each cat received dexmedetomidine (40 μg kg−1) plus buprenorphine (20 μg kg−1), intramuscularly as pre-anesthetic medication. Cats were assigned to three treatment groups: ondansetron (0.22 mg kg−1, intramuscular [IM]), either 30 minutes before the pre-anesthetic medication (ONDA group, n = 31) or with the pre-anesthetic medication (OPM group, n = 30) mixed with the pre-anesthetic medications in the same syringe, or not to receive the antiemetic (control group, n = 28). Emesis was recorded as an all-or-none response. The number of episodes of emesis and the time until onset of the first emetic episode were recorded for each cat. Clinical signs of nausea were recorded whenever they occurred, and a numerical rating scale was used to quantify these signs. Data were analyzed using Kruskal–Wallis and Chi-square test; a Bonferroni correction was made for six comparisons; thus, the two-sided p for significance was 0.05/6 = 0.008. Results:  There was a significant reduction in the number of cats vomiting, in the episodes of vomiting/cat, the time elapsed between the premedication and the first vomiting and the severity of nausea in the OPM group compared to the ONDA and control groups. Conclusions and clinical relevance:  In cats, the administration of ondansetron (0.22 mg kg−1) ameliorates and reduced the severity of dexmedetomidine-induced nausea and vomiting only when it was administered in association with this drug.
Keywords: cats; dexmedetomidine; emesis; ondansetron
Rights: © 2011 The Authors. Veterinary Anaesthesia and Analgesia. © 2011 Association of Veterinary Anaesthetists and the American College of Veterinary Anesthesiologists
DOI: 10.1111/j.1467-2995.2011.00619.x
Appears in Collections:Animal and Veterinary Sciences publications
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