Efeitos analgésicos e cardiovasculares da fluoxetina em cães submetidos a orquiectomia

Autores

  • Helder Anderson Lima Silva
  • Geisa Braga Amaro Vieira
  • Isabella de Carvalho Almeida
  • Iara Catarina Alves de Almeida
  • Anita Eugênia Alencar Santos Ribeiro
  • Ricardo Lola Pereira
  • Raimundo Campos Palheta Junior

DOI:

https://doi.org/10.34188/bjaerv9n3-176

Palavras-chave:

analgesia, antidepressivo, dor, serotonina

Resumo

O uso de anti-inflamatórios não esteroidais (AINES) em cães podem desencadear efeitos adversos como alterações gastrintestinais e renais. Assim, esse estudo investigou o eventual efeito analgésico da fluoxetina em cães submetidos à orquiectomia. Sessenta minutos antes da orquiectomia, doze cães foram tratados aleatoriamente com meloxicam (0,2 mg/kg, vo, grupo meloxicam, n= 6) e outros seis foram tratados com fluoxetina (2 mg/kg, vo, grupo fluoxetina). Para a avaliação da dor foram utilizadas três escalas multidimesionais de avaliação da dor em cães (Escala Composta de Glasgow [CG]; Escala da Universidade do Colorado [UC] e a Escala da Universidade de Melbourne (UM) no período pós-operatório. Os parâmetros cardiovasculares, respiratórios, temperatura corpórea e registros referentes a sedação/anestesia foram avaliados ao longo do período transcirúrgico. Considerando as escalas CG e UM não houve variações significativas ao longo de todos os períodos analisados. Já com o uso da UC, as 24 horas, houve aumento (p<0.05) na intensidade de dor referida dos animais do grupo fluoxetina em relação ao grupo meloxicam. Em relação ao grupo meloxicam, houve uma redução da pressão arterial sistólica, diastólica e média, bem como aumento da frequência cardíaca nos animais que receberam fluoxetina. Não Houve diferenças significativas entre os grupos quanto aos demais parâmetros mensurados. Considerando os métodos de avaliação de dor utilizados a fluoxetina 2 mg/kg apresentou efeitos analgésicos semelhantes ao meloxicam 0,2 mg/kg. Entretanto, e considerando os efeitos cardiovasculares observados, estudos adicionais devem ser realizados, para investigar a possibilidade deste fármaco vim a compor a terapia multimodal no manejo pós-operatório da dor aguda em cães.

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2026-08-23

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Silva, H. A. L., Vieira, G. B. A., Almeida, I. de C., Almeida, I. C. A. de, Ribeiro, A. E. A. S., Pereira, R. L., & Palheta Junior, R. C. (2026). Efeitos analgésicos e cardiovasculares da fluoxetina em cães submetidos a orquiectomia. Brazilian Journal of Animal and Environmental Research, 9(3), e88897. https://doi.org/10.34188/bjaerv9n3-176

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