PARTICULARITIES OF HORNER'S SYNDROME IN DOGS AND CATS: A LITERATURE REVIEW

Authors

  • Luís Alfredo Pinheiro da Costa Author
  • Julia Marques Costa Author
  • Lucas Paulino da Silva Author
  • Andressa Cardoso Raymundi Author
  • Bárbara Franco Bueno Fernandes Author
  • Lorrany Gonçalves da Silva Resende Author
  • Carlos Eduardo Fontoura da Silva Author
  • Pedro Augusto Fernandes de Paula Author
  • Arthur Queiroz Lopes França Author
  • Letícia Ferreira Sousa Author
  • Ana Laura de Sousa Author

DOI:

https://doi.org/10.56238/arev7n4-131

Keywords:

Phenylephrine, Sympathetic disorder, Ophthalmology

Abstract

Horner's syndrome (HS) is a neurological alteration resulting from the interruption of the sympathetic innervation of the eyeball, characterizing the ophthalmic clinical signs; miosis, enophthalmos, eyelid ptosis, and prolapse of the third eyelid. The sympathetic nervous tract of the eye is extensive, dividing into central, pre- and post-ganglionic neurons, or first, second, and third-order neurons, as mentioned in older literature. From this, HS should be classified according to the neurolocation of the lesion, there are other possibilities that are not well elucidated, such as hypothyroidism and idiopathic presentation. The gold standard definitive diagnosis is made through the instillation of 5 to 10% cocaine-based eye drops, however, due to the difficult access, the 1 to 10% phenylephrine solution can be a substitute, in both cases the animals positive for HS continued with miosis and the other signs already presented. Because it is a disease secondary to an injury during the nervous tract, a systematic investigation using imaging tests is necessary, since treating the underlying cause is the beginning of treatment. This, as already mentioned, will depend on the location of the lesion, for symptomatic treatment phenylephrine 1 to 10% is used, which temporarily relieves parasympathetic signs. Thus, this study aims to perform a literature review on the particularities of Horner's syndrome in dogs and cats.

Downloads

Download data is not yet available.

Published

2025-04-13

Issue

Section

Articles

How to Cite

DA COSTA, Luís Alfredo Pinheiro et al. PARTICULARITIES OF HORNER’S SYNDROME IN DOGS AND CATS: A LITERATURE REVIEW. ARACÊ , [S. l.], v. 7, n. 4, p. 17871–17881, 2025. DOI: 10.56238/arev7n4-131. Disponível em: https://periodicos.newsciencepubl.com/arace/article/view/4404. Acesso em: 21 may. 2025.