Hemodynamics of the pectinis oculi artery in American pekin ducks (Anas platyrhynchos domestica).
Vet Ophthalmol
; 19(5): 409-13, 2016 Sep.
Article
em En
| MEDLINE
| ID: mdl-26398920
OBJECTIVE: To measure blood velocity parameters of the main detectable branch of the pectinis oculi artery and compare with values found in other arteries in other species to form a hypothesis of the function of the pecten oculi in birds. METHODS: Eleven American pekin ducks (Anas platyrhynchos domestica) without ocular diseases were examined with ocular Doppler ultrasonography. The pectinate artery resistive index (RI) and pulsatility index (PI) were calculated. RESULTS: The mean of RI and PI values resulted, respectively, in: left eye (0.43 ± 0.07; 0.58 ± 0.13), right eye (0.37 ± 0.09; 0.47 ± 0.14), and both eyes (0.40 ± 0.08; 0.53 ± 0.14). DISCUSSION: The low RI and PI values found in the main branch of the pectinis oculi artery compared with other arteries in other tissues suggest a high metabolic activity in the pecten oculi, and it could indicate a nutritional function and/or intraocular pressure regulation.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artérias
/
Resistência Vascular
/
Patos
/
Olho
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Vet Ophthalmol
Assunto da revista:
MEDICINA VETERINARIA
/
OFTALMOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido