Uso de viscoelásticos na facoemulsificação em cães portadores de catarata: efeitos sobre a pressão intraocular, a morfologia das células endoteliais e a espessura corneana
Data
2010-06-01
Autores
Chiurciu, J. L. V. [UNESP]
Brandão, Claudia Valeria Seullner [UNESP]
Rodrigues, A. C. L. [UNESP]
Ranzani, José Joaquim Titton [UNESP]
Ferreira, T. H. [UNESP]
Padovani, C. R. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Minas Gerais (UFMG), Escola de Veterinária
Resumo
Avaliaram-se as células endoteliais, a espessura corneana e a pressão intraocular (PIO) de cães portadores de catarata madura, empregando-se viscoelástico à base de hialuronato de sódio 3% e sulfato de condroitina 4% e hidroxipropilmetilcelulose 2%, utilizando-se 20 cães, distribuídos entre os dois grupos dos viscoelásticos. A técnica cirúrgica adotada foi a da facoemulsificação bimanual. As avaliações tonométricas foram efetuadas antes e após o ato cirúrgico, aos 1, 7, 14, 21, 28 e 60 dias de pós-operatório, e a microscopia especular, antes e após 7, 28 e 60 dias. Não houve diferença estatística entre os grupos quanto à PIO, com exceção aos 14 dias, em que se observou maior PIO com o uso de hialuronato de sódio 3% e sulfato de condroitina 4%. Não houve diferença entre os grupos quanto aos parâmetros relacionados ao endotélio, com diminuição discreta da densidade celular endotelial e aumento da área celular com a utilização de hidroxipropilmetilcelulose 2%. A utilização de ambos os dispositivos viscoelásticos analisados é recomendada para o procedimento de facoemulsificação em cães.
The endothelial cells, the corneal thickness, and the intraocular pressure (IOP) were evaluated in dogs with cataract, using viscoelastic substances based on 3% sodium hyaluronate and 4% chondroitin sulfate and comparing them with 2% hydroxypropylmethylcellulose. Twenty dogs were distributed in two groups of ten, each using one viscoelastic material. The surgical technique was bimanual phacoemulsification. The tonometric evaluations were made before and at one, seven, 14, 21, 28, and 60 days after the surgery and the specular microscopy before and after seven, 28, and 60 days. No statistical difference between groups was found according to IOP, except at 14 days, which was significantly higher with the use of 3% sodium hyaluronate and 4% chondroitin sulfate. There was no statistical difference between the groups considering the parameters related to the endothelium, with slight decrease in endothelial cell density and increase of cell area with the use of 2% hydroxypropylmethylcellulose. The use of both viscoelastic devices is recommended for the phacoemulsification in dogs.
The endothelial cells, the corneal thickness, and the intraocular pressure (IOP) were evaluated in dogs with cataract, using viscoelastic substances based on 3% sodium hyaluronate and 4% chondroitin sulfate and comparing them with 2% hydroxypropylmethylcellulose. Twenty dogs were distributed in two groups of ten, each using one viscoelastic material. The surgical technique was bimanual phacoemulsification. The tonometric evaluations were made before and at one, seven, 14, 21, 28, and 60 days after the surgery and the specular microscopy before and after seven, 28, and 60 days. No statistical difference between groups was found according to IOP, except at 14 days, which was significantly higher with the use of 3% sodium hyaluronate and 4% chondroitin sulfate. There was no statistical difference between the groups considering the parameters related to the endothelium, with slight decrease in endothelial cell density and increase of cell area with the use of 2% hydroxypropylmethylcellulose. The use of both viscoelastic devices is recommended for the phacoemulsification in dogs.
Descrição
Palavras-chave
cão, catarata, facoemulsificação, viscoelástico, dog, cataract, phacoemulsification, viscoelastic substances
Como citar
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Universidade Federal de Minas Gerais, Escola de Veterinária, v. 62, n. 3, p. 570-577, 2010.