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Archivos de la Sociedad Española de Oftalmología (English Edition) Biomarkers predictive of visual outcome in idiopathic epiretinal membrane
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Biomarkers predictive of visual outcome in idiopathic epiretinal membrane

Biomarcadores predictivos del resultado visual en membrana epirretiniana idiopática
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J.M. Carrillo Martineza,
Corresponding author
jmanuel5396@gmail.com

Corresponding author.
, O. Ramos Sotob, J.M. Carrillo Hernandezc, F. Hernández Núñeza, D.L. Serrano Ramireza, J.A. Blanco D’ Mendietaa, A. Ordaz Espinod, A.D. Vega Garcíaa
a División de Oftalmología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Cuauhtémoc, Mexico City, Mexico
b Departamento de Ingeniería Electro-Fotónica, CUCEI, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
c Profesor investigador, Instituto Tecnológico de Durango, Durango, Durango, Mexico
d Facultad de Medicina y Nutrición, Universidad Juárez del Estado de Durango, Durango, Durango, Mexico
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Abstract
Background and objectives

To assess the usefulness of clinical, and structural biomarkers obtained by Spectral-Domain Optical Coherence Tomography (SD-OCT), as predictors of visual outcome after idiopathic epiretinal membrane (iERM) surgery.

Materials and methods

This was a retrospective, observational, and analytical study of 50 eyes from 50 patients who underwent iERM surgery. We studied preoperative best-corrected visual acuity (BCVA) as a clinical biomarker, and the following structural SD-OCT biomarkers: preoperative (Pre) and postoperative (Post) central macular thickness (CMT); Pre Govetto stage; and the presence of Pre ectopic inner foveal layers (EIFL), disorganization of retinal inner layers (DRIL), outer layer disruption (OLD), and interdigitation zone disruption (IZD).

Results

Ten eyes were included in stage 2, 27 in stage 3, and 13 in stage 4. Pre BCVA was 0.96 ± 0.36 LogMAR, Post was 0.65 ± 0.43 LogMAR. Preoperative CMT was 425.4 ± 91.5 µm, Post was 338.5 ± 73.6 µm. Significant differences were found in Post BCVA between stages, with a trend toward worse BCVA in more advanced stages. A moderate-to-strong positive correlation was found between Pre BCVA and Post BCVA. Post BCVA did not correlate with Post CMT, but it did with Pre CMT. Patients with one or more of the EIFL, DRIL, DCE, and DZI biomarkers tended to have a worse visual outcome.

Conclusions

A worse initial BCVA, greater Pre CMT, and the presence of EIFL, DRIL, DCE, and/or DZI (associated with more advanced stages) translate to poorer postoperative vision. Early surgery could confer a higher probability of a better visual outcome.

Keywords:
Idiopathic epiretinal membrane
Biomarker
Optical coherence tomography
Visual acuity
Vitreoretinal surgery
Resumen
Antecedentes y objetivos

Valorar la utilidad de biomarcadores de tipo clínico y estructural obtenidos por Tomografía de Coherencia Óptica (SD-OCT), como predictores de resultado visual tras la cirugía de membrana epirretiniana idiopática (MERi).

Materiales y métodos

Estudio retrospectivo, observacional y analítico de 50 ojos de 50 pacientes, sometidos a cirugía de MERi. Se estudió la agudeza visual mejor corregida (AVMC) preoperatoria (Pre) como biomarcador clínico, y biomarcadores estructurales por SD-OCT: grosor macular central (GMC) Pre y postoperatorio (Post); Estadio de Govetto Pre; y la presencia de capas ectópicas internas (EIFL), disrupción de capas internas (DRIL), disrupción de capas externas (DCE), y disrupción de zona de interdigitación (DZI) Pre.

Resultados

Se incluyeron 10 ojos en estadio 2, 27 en estadio 3, y 13 en estadio 4. AVMC Pre: 0.96 ± 0.36 LogMAR, y Post: 0.65 ± 0.43 LogMAR. GMC Pre: 425.4 ± 91.5 µm, y Post: 338.5 ± 73.6 µm. Se encontraron diferencias significativas en la AVMC Post entre estadios, con tendencia a peor AVMC en estadios más avanzados. Se encontró una correlación positiva moderada-fuerte entre la AVMC Pre y AVMC Post. La AVMC Post no se correlacionó con el GMC Post, pero si con el GMC Pre. Aquellos pacientes con uno o más de los biomarcadores EIFL, DRIL, DCE, y DZI, tendieron a un peor resultado visual.

Conclusiones

Una peor AVMC inicial, mayor GMC Pre, y la presencia de EIFL, DRIL, DCE, y/o DZI (asociados a estadios más avanzados) se traducen en una peor visión postoperatoria. Una cirugía temprana pudiera conferir mayores probabilidades de un mejor resultado visual.

Palabras clave:
Membrana epirretiniana idiopática
Biomarcador
Tomografía de coherencia óptica
Agudeza visual
Cirugía vitreorretiniana

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