Estudio Normativo del Electroretinograma a Patrón

Authors

  • Rafael Castells Ferras ICO Pando Ferrer
  • Yahumara Alberto Escobar ICO Pando Ferrer
  • Melissa Medina Pastrana ICO Pando Ferrer
  • Ingrid Machado Forzate ICO Pando Ferrer
  • Rene Llanes Rodríguez ICO Pando Ferrer

Keywords:

electroretinograma, latencia, amplitud

Abstract

El Electroretinograma a patrón (pERG) consiste en la medición de la respuesta retiniana central ante un estímulo estructurado, generalmente un damero de luminancia constante que alterna blanco y negro. Además permite la diferenciación electrofisiológica entre maculopatías y neuropatías y facilita la interpretación de los potenciales evocados visuales. En nuestra investigación hemos tomado una muestra inicial de 16 individuos sanos para realizarle el estudio y obtener los patrones de comparación de los componentes registrados en el examen para una correcta obtención de los valores clínicos que puedan arrojar un diagnostico. Se empleo el equipo de electrofisiología visual de la Roland Consult en el laboratorio del Instituto Cubano de Oftalmología Previo al estudio se le realizo a cada paciente un estudio psicofísico de la visión para descartar la presencia de patologías enmascaradas, además se procedió bajo el consentimiento informado del paciente. No se evidenciaron diferencias entre sexos, las latencias de N35 y N95 fueron las más variables mientras que la  P50  la más estable.

ABSTRACT

The Pattern Electroretinogram ( pERG ) is the retinal answer's measurement central retina  from a  structured stimulus, generally a damero of constant luminance that mixes in black and white. Besides permit electrophysiology differentiation among maculophatíes and neuropathies and make easy the visual evoked potentials interpretation. We have selected a sample initial of 16 healthy individuals In our investigation to accomplish study to him and to obtain the comparison patterns of the registered components in the exam in order to correct clinical values obtaining that they may obtain a diagnosis. Use the visual- electrophysiology team of her Roland Consult in the laboratory of Cuban Ophthalmology Institute. Before study, all  patients was  studies to discard the masked- pathologies presence, besides the consent once  the patient was  given information about proceeded  itself softly. Not differences among sexes, N35's and N95's latencies was a most variables, and P50 was stable always

KeyWords: Electroretinogram, latency, amplitude

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Published

2015-04-06

How to Cite

1.
Castells Ferras R, Escobar YA, Medina Pastrana M, Machado Forzate I, Llanes Rodríguez R. Estudio Normativo del Electroretinograma a Patrón. Rev. Cub. Tecnol. Salud. [Internet]. 2015 Apr. 6 [cited 2025 Apr. 24];6(1):pag 13-23. Available from: https://revtecnologia.sld.cu/index.php/tec/article/view/245

Issue

Vol. 6 No. 1 (2015): enero - abril

Section

Original Articles

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