Experimental comparative study of perineural injection of benzyl alcohol 0,75% and absolute ethyl alcohol in equine palmar nerves

Authors

  • José Luiz de Mello Nicoletti Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia e Anestesiologia Veterinária, Botucatu, SP
  • Pierre Barnabé Escodro Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia e Anestesiologia Veterinária, Botucatu, SP
  • Carlos Alberto Hussni Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia e Anestesiologia Veterinária, Botucatu, SP
  • Ana Liz Garcia Alves Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia e Anestesiologia Veterinária, Botucatu, SP
  • Armen Thomassian Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia e Anestesiologia Veterinária, Botucatu, SP
  • René Laufer Amorin Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Veterinária, Botucatu, SP

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2007.26604

Keywords:

Neurolysis, Alcohol, Palmar nerves, Horse

Abstract

The clinical and histopathological effects of two alcoholic neurolytics were studied in horses. Normal horses were shod with a designed shoe adaptted with 5 screws to produce solar pain. After gait and lameness score analysis, the palmar nerve of 5 horses was injected with 5 ml of 0,75% benzyl alcohol (Group A) and 5 horses were injected with 5 ml of absolute ethyl alcohol (Group B). The animals were submitted to regular lameness evaluation and solar sensibility tests during next six months. The solar sensitivity returned 5 months latter in the group injected with benzyl alcohol 0,75%, while in the group injected with absolute ethyl alcohol, the sole was still desensitized 6 months latter. The histopathological findings showed that the nerve injected with benzyl alcohol 0,75%, resulted in axonotmesis, characterized by axonal nerve degeneration, with possibilities for the nerve conduction recovery. The perineural injection of ethyl alcohol absolute, resulted in neurotmesis with difficult nerve regeneration. It was concluded that chemical neurolysis with alcohol is an option for temporary or permanent nerve blocks in horses.

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Published

2007-12-01

How to Cite

Nicoletti, J. L. de M., Escodro, P. B., Hussni, C. A., Alves, A. L. G., Thomassian, A., & Amorin, R. L. (2007). Experimental comparative study of perineural injection of benzyl alcohol 0,75% and absolute ethyl alcohol in equine palmar nerves. Brazilian Journal of Veterinary Research and Animal Science, 44(6), 401-407. https://doi.org/10.11606/issn.1678-4456.bjvras.2007.26604

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