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Can Vet J ; 60(1): 55-59, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30651651

RESUMO

This study assessed the effects of a combination of dexmedetomidine and butorphanol on the Schirmer tear test I (STT I) values in dogs. Ninety-eight dogs were sedated with an intramuscular injection of a combination of dexmedetomidine, 5 µg/kg body weight (BW), and butorphanol, 0.2 mg/kg BW. The effects of dexmedetomidine were reversed by administering atipamezole at the end of the procedure. The combination of dexmedetomidine and butorphanol significantly decreased tear production 15 minutes after sedation. The STT I values 15 minutes after reversal of dexmedetomidine with atipamezole were significantly higher than the STT I values 15 minutes after sedation but were significantly lower than the STT I values before sedation. Gender, weight, duration of sedation, right or left eye did not affect STT I values after sedation. It is recommended that dogs sedated with a combination of dexmedetomidine and butorphanol be treated with a tear substitute to combat decreased tear production.


Effet de l'association dexmédétomidin-butorphanol intramusculaire sur la production lacrymale chez le chien. L'étude vise à déterminer les effets de l'association dexmédétomidine-butorphanol sur les résultats du test de Schirmer I (STT I) chez le chien. Quatre-vingt-dix-huit chiens ont été sédatés avec l'association dexmédétomidine (5 µg/kg) butorphanol (0,2 mg/kg) intramusculaire. La dexmédétomidine a été antagonisée avec de l'atipamezole en fin de procédure. L'association dexmédétomidine-butorphanol diminue significativement la production lacrimale 15 minutes post-sédation. Les valeurs de STT I 15 minutes post-antagonisation de la dexmédétomidine étaient significativement plus élevées que celles de STT I 15 minutes post-sédation, mais significativement inférieures aux STT I pré-sédation. Les variables genre, poids, durée de la sédation, oeil droit/gauche, n'ont pas significativement influencé les valeurs de STT I post-sédation. L'association dexmédétomidine-butorphanol diminuant significativement leur production lacrimale il est recommandable de traiter les chiens avec des substituts lacrimaux pour éviter la sécheresse oculaire.(Traduit par les auteurs).


Assuntos
Anestésicos Combinados/uso terapêutico , Butorfanol/uso terapêutico , Sedação Consciente/veterinária , Dexmedetomidina/uso terapêutico , Cães/fisiologia , Hipnóticos e Sedativos/uso terapêutico , Lágrimas/fisiologia , Anestésicos Combinados/administração & dosagem , Anestésicos Combinados/farmacologia , Animais , Butorfanol/administração & dosagem , Butorfanol/farmacologia , Dexmedetomidina/administração & dosagem , Dexmedetomidina/farmacologia , Cães/cirurgia , Feminino , Hipnóticos e Sedativos/administração & dosagem , Hipnóticos e Sedativos/farmacologia , Injeções Intramusculares/veterinária , Masculino
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