A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Investigation of the effects of vatinoxan on somatic and visceral antinociceptive efficacy of medetomidine in dogs
Tekijät: Huuskonen V, Restitutti F, Honkavaara JM, Raekallio MR, Männikkö S, Scheinin M, Vainio OM
Kustantaja: AMER VETERINARY MEDICAL ASSOC
Julkaisuvuosi: 2020
Journal: American Journal of Veterinary Research
Tietokannassa oleva lehden nimi: AMERICAN JOURNAL OF VETERINARY RESEARCH
Lehden akronyymi: AM J VET RES
Vuosikerta: 81
Numero: 4
Aloitussivu: 299
Lopetussivu: 308
Sivujen määrä: 10
ISSN: 0002-9645
eISSN: 1943-5681
DOI: https://doi.org/10.2460/ajvr.81.4.299
Rinnakkaistallenteen osoite: http://hdl.handle.net/10138/326341
Tiivistelmä
OBJECTIVETo determine whether concurrent vatinoxan administration affects the antinociceptive efficacy of medetomidine in dogs at doses that provide circulating dexmedetomidine concentrations similar to those produced by medetomidine alone.ANIMALS8 healthy Beagles.PROCEDURESDogs received 3 IV treatments in a randomized crossover-design trial with a 2-week washout period between experiments (medetomidine [20 mu g/kg], medetomidine [20 mu g/kg] and vatinoxan [400 mu g/kg], and medetomidine [40 mu g/kg] and vatinoxan [800 mu g/kg]; M20, M20V400, and M40V800, respectively). Sedation, visceral and somatic nociception, and plasma drug concentrations were assessed. Somatic and visceral nociception measurements and sedation scores were compared among treatments and over time. Sedation, visceral antinociception, and somatic antinociception effects of M20V400 and M40V800 were analyzed for noninferiority to effects of M20, and plasma drug concentration data were assessed for equivalence between treatments.RESULTSPlasma dexmedetomidine concentrations after administration of M20 and M40V800 were equivalent. Sedation scores, visceral nociception measurements, and somatic nociception measurements did not differ significantly among treatments within time points. Overall sedative effects of M20V400 and M40V800 and visceral antinociceptive effects of M40V800 were non inferior to those produced by M20. Somatic antinociception effects of M20V400 at 10 minutes and M40V800 at 10 and 55 minutes after injection were noninferior to those produced by M20.CONCLUSIONS AND CLINICAL RELEVANCEResults suggested coadministration with vatinoxan did not substantially diminish visceral antinociceptive effects of medetomidine when plasma dexmedetomidine concentrations were equivalent to those produced by medetomidine alone. For somatic antinociception, noninferiority of treatments was detected at some time points.
OBJECTIVETo determine whether concurrent vatinoxan administration affects the antinociceptive efficacy of medetomidine in dogs at doses that provide circulating dexmedetomidine concentrations similar to those produced by medetomidine alone.ANIMALS8 healthy Beagles.PROCEDURESDogs received 3 IV treatments in a randomized crossover-design trial with a 2-week washout period between experiments (medetomidine [20 mu g/kg], medetomidine [20 mu g/kg] and vatinoxan [400 mu g/kg], and medetomidine [40 mu g/kg] and vatinoxan [800 mu g/kg]; M20, M20V400, and M40V800, respectively). Sedation, visceral and somatic nociception, and plasma drug concentrations were assessed. Somatic and visceral nociception measurements and sedation scores were compared among treatments and over time. Sedation, visceral antinociception, and somatic antinociception effects of M20V400 and M40V800 were analyzed for noninferiority to effects of M20, and plasma drug concentration data were assessed for equivalence between treatments.RESULTSPlasma dexmedetomidine concentrations after administration of M20 and M40V800 were equivalent. Sedation scores, visceral nociception measurements, and somatic nociception measurements did not differ significantly among treatments within time points. Overall sedative effects of M20V400 and M40V800 and visceral antinociceptive effects of M40V800 were non inferior to those produced by M20. Somatic antinociception effects of M20V400 at 10 minutes and M40V800 at 10 and 55 minutes after injection were noninferior to those produced by M20.CONCLUSIONS AND CLINICAL RELEVANCEResults suggested coadministration with vatinoxan did not substantially diminish visceral antinociceptive effects of medetomidine when plasma dexmedetomidine concentrations were equivalent to those produced by medetomidine alone. For somatic antinociception, noninferiority of treatments was detected at some time points.
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