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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Electroretinography in dogs using a fiber electrode prototype

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Author(s):
A.L. Pereira [1] ; F. Montiani-Ferreira [2] ; V.R. Santos [3] ; S.R. Salomão [4] ; C. Souza [5] ; A. Berezovsky [3]
Total Authors: 6
Affiliation:
[1] Clin Vet Arca Noe, Atibaia, SP - Brazil
[2] Univ Fed Parana, Dept Vet Med, BR-80060000 Curitiba, Parana - Brazil
[3] Univ Fed Sao Paulo, Escola Paulista Med, Dept Oftalmol, Sao Paulo - Brazil
[4] Universidade Federal de São Paulo. Escola Paulista de Medicina. Departamento de Oftalmologia - Brasil
[5] Washington State Univ, Dept Vet Clin Sci, Pullman, WA 99164 - USA
Total Affiliations: 5
Document type: Journal article
Source: Brazilian Journal of Medical and Biological Research; v. 46, n. 3, p. 257-262, 2013-03-19.
Abstract

We compared two electroretinography (ERG) electrodes in dogs using ERG standards of the International Society for Clinical Electrophysiology of Vision (ISCEV). Ten healthy Yorkshire terrier dogs (mean age, 2.80 ± 1.42 years; 6 females) weighing 5.20 ± 1.56 kg were evaluated using an ERG system for veterinary use. Dark- and light-adapted ERG responses were recorded using an ERG-Jet electrode and a fiber electrode prototype. The examinations were performed during 2 visits, 3 weeks apart. Both electrodes (ERG-Jet or fiber prototype) were used on each animal and the first eye to be recorded (OD × OS) was selected randomly. Three weeks later the examination was repeated on the same animal switching the type of electrode to be used that day and the first eye to be examined. The magnitude and waveform quality obtained with the two electrode types were similar for all ERG responses. ERG amplitudes and implicit times obtained from dogs using the fiber electrode prototype were comparable to those obtained with the ERG-Jet electrode for rod, maximal rod-cone summed, cone, and 30-Hz flicker responses. The fiber electrode prototype is a low-cost device, available as an alternative instrument for clinical veterinary ERG recording for retinal function assessment. (AU)

FAPESP's process: 04/02669-6 - Development and standardization of a national disposable electrode of conductive microfiber for use in clinical electroretinography
Grantee:Adriana Berezovsky
Support Opportunities: Regular Research Grants
FAPESP's process: 05/56459-5 - Request for patent application of a national disposable electrode prototype of conductive microfiber to be used in clinical electroretinography
Grantee:Adriana Berezovsky
Support Opportunities: Research Grants - Support for Intellectual Property Rights and Licensing (PAPI/Nuplitec)