CEFYBO   02669
CENTRO DE ESTUDIOS FARMACOLOGICOS Y BOTANICOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Study About The Probability To Develope Retinal Degeneration In Canines With Cataract By Erg In Argentina
Autor/es:
SANDE PH; LAGIOIOSA J; ALVAREZ J; ROSENSTEIN RE
Lugar:
Fort Lauderdale
Reunión:
Congreso; Association For Research In Vision And Ophthalmology (Arvo); 2012
Institución organizadora:
ARVO
Resumen:
Invest Ophthalmol Vis Sci 2012;53: E-Abstract 2452.© 2012 ARVO
2452A606
Study About The
Probability To Develope Retinal Degeneration In Canines With Cataract By Erg In
Argentina
Pablo
Sande1A, Javier Lagioiosa2, Javier Alvarez2
and Ruth E. Rosenstein1B
AHuman
Biochemistry/Sch of Med, BDept Human Biochem-Sch Med, 1University
of Buenos Aires, Buenos Aires, Argentina2ophthalmology veterinary clinic, the station, Buenos Aires,
Argentina
Commercial
Relationships: Pablo
Sande, None; Javier Lagioiosa, None; Javier Alvarez, None; Ruth
E. Rosenstein, None
Support: None
Abstract
Purpose:Some dog breeds have a high
incidence of hereditary visual diseases, in particular, cataracts and retinal
degeneration (DHR). The electrorretinography (ERGs) is a reliable diagnostic
method for analyzing the retinal function. Because of the association between
these two diseases, it is necessary to assess the retinal function before
cataract surgery, in order to predict the possibility of post-surgical visual
recovery. The objective of this work was to characterize the population of dogs
with cataracts according to breed, age and the presence of DHR in Buenos Aires
(BA), as well as to determine the probability that dogs with cataracts have DHR
according to breed and age.
Methods:Dogs with bilateral cataracts (312
animals) were analyzed by ERGs. The animals showed not unilateral alterations
of the pupil reflex, or other apparent condition of the eyeball (uveitis,
glaucoma, or retinal detachment). Patients were categorized in: English Cocker
Spaniel, Poodle, Fox terrier, and others breeds; according to the age in: young
0-3; adult 4-7, and wearers > 8 years, and according to the ERGs in: null,
subnormal, and normal. Estimated percentages of patients with DHR according to
breed and age and the likelihood (odds) for the disease according to the breed,
and age of the patient with cataract procedure was calculated by PROC LOGISTIC,
SAS, version 9.1.3 (SAS Institute Inc., Cary, NC, USA).
Results:Forty percent of dogs (123) were DHR
positive, 59.8 % were Cocker, 41.5% poodles, 23.% Fox terriers and 18.4% of
other breeds presented anomalous ERGs. On the other hand, 46.7% of the wearers,
40.2 % of adults and 7.9 % of young dogs showed a pathological ERG. For the
Cockers the likelihood of DHR was 2.66 (confidence interval (CI): 1.71-4.14; p
< 0.001), for the Poodle 1.57 (IC: 1, 01-2, 45, p < 0,05), while for Fox
terrier the presence or absence of DHR was similar, with an estimated probability
of 0.59 (IC: 0, 26-1, 31). For other breeds, the likelihood of DHR was 0.41 (0,
24-0, 68, p < 0.001). The probabilities estimated for each age group were
2.55 (IC: 1, 57-4, 15, p < 0.001); 1.50 (IC: 0, 2-92, 45) and 0.26 (IC: 0,
11-0, 59, p < 0.01) for the wearers, adults and youths, respectively.
Conclusions:These results confirm a high
prevalence of DHR in patients (Poodles and Cockers) with cataract in BA, as
well as those over the age of 4 years of age. Through the analysis of
probability, it can be concluded that belonging to the Cocker and Poodle breed
in BA is a risk factor for the development of DHR in dogs with cataracts, while
to for Fox terrier this association was not evident. In other breeds, the
possibility of submitting a retinopathy (protection factor) is minimal. Also,
older suffering from cataract patient, there is an increased risk of DHR.
Keywords: retina cataract
electroretinography: non-clinical
©
2012, The Association for Research in Vision and Ophthalmology, Inc., all rights
reserved. Permission to republish any abstract or part of an abstract in any
form must be obtained in writing from the ARVO Office prior to publication.