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Intraoperative Electroretinograms before and after Core Vitrectomy

PURPOSE: To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy. DESIGN: Retrospective consecutive case series. METHOD: Full-field photopic ERGs were recorded prior to the beginning and just after core vitrectomy using a sterilized contact lens elec...

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Autores principales: Yagura, Kazuma, Shinoda, Kei, Matsumoto, Soiti, Terauchi, Gaku, Watanabe, Emiko, Matsumoto, Harue, Akiyama, Goichi, Mizota, Atsushi, Miyake, Yozo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4806841/
https://www.ncbi.nlm.nih.gov/pubmed/27010332
http://dx.doi.org/10.1371/journal.pone.0152052
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author Yagura, Kazuma
Shinoda, Kei
Matsumoto, Soiti
Terauchi, Gaku
Watanabe, Emiko
Matsumoto, Harue
Akiyama, Goichi
Mizota, Atsushi
Miyake, Yozo
author_facet Yagura, Kazuma
Shinoda, Kei
Matsumoto, Soiti
Terauchi, Gaku
Watanabe, Emiko
Matsumoto, Harue
Akiyama, Goichi
Mizota, Atsushi
Miyake, Yozo
author_sort Yagura, Kazuma
collection PubMed
description PURPOSE: To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy. DESIGN: Retrospective consecutive case series. METHOD: Full-field photopic ERGs were recorded prior to the beginning and just after core vitrectomy using a sterilized contact lens electrode in 20 eyes that underwent non-complicated vitreous surgery. A light-emitted diode was embedded into the contact lens, and a stimulus of 150 ms on and 350 ms off at 2 Hz was delivered. The amplitudes and latencies of the a-, b-, and d-waves, photopic negative response (PhNR), and oscillatory potentials (OPs) were analyzed. The intraocular temperature at the mid-vitreous was measured at the beginning and just after the surgery with a thermoprobe. RESULTS: The intraocular temperature was 33.2 ± 1.3°C before and 29.4 ± 1.7°C after the vitrectomy. The amplitudes of the PhNR and OPs were significantly smaller after surgery, and the latencies of all components were prolonged after the surgery. These changes were not significantly correlated with the changes of the temperature. CONCLUSION: Retinal function is reduced just after core vitrectomy in conjunction with significant temperature reduction. The differences in the degree of alterations of each ERG component suggests different sensitivity of each type of retinal neuron.
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spelling pubmed-48068412016-03-25 Intraoperative Electroretinograms before and after Core Vitrectomy Yagura, Kazuma Shinoda, Kei Matsumoto, Soiti Terauchi, Gaku Watanabe, Emiko Matsumoto, Harue Akiyama, Goichi Mizota, Atsushi Miyake, Yozo PLoS One Research Article PURPOSE: To evaluate retinal function by intraoperative electroretinograms (ERGs) before and after core vitrectomy. DESIGN: Retrospective consecutive case series. METHOD: Full-field photopic ERGs were recorded prior to the beginning and just after core vitrectomy using a sterilized contact lens electrode in 20 eyes that underwent non-complicated vitreous surgery. A light-emitted diode was embedded into the contact lens, and a stimulus of 150 ms on and 350 ms off at 2 Hz was delivered. The amplitudes and latencies of the a-, b-, and d-waves, photopic negative response (PhNR), and oscillatory potentials (OPs) were analyzed. The intraocular temperature at the mid-vitreous was measured at the beginning and just after the surgery with a thermoprobe. RESULTS: The intraocular temperature was 33.2 ± 1.3°C before and 29.4 ± 1.7°C after the vitrectomy. The amplitudes of the PhNR and OPs were significantly smaller after surgery, and the latencies of all components were prolonged after the surgery. These changes were not significantly correlated with the changes of the temperature. CONCLUSION: Retinal function is reduced just after core vitrectomy in conjunction with significant temperature reduction. The differences in the degree of alterations of each ERG component suggests different sensitivity of each type of retinal neuron. Public Library of Science 2016-03-24 /pmc/articles/PMC4806841/ /pubmed/27010332 http://dx.doi.org/10.1371/journal.pone.0152052 Text en © 2016 Yagura et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Yagura, Kazuma
Shinoda, Kei
Matsumoto, Soiti
Terauchi, Gaku
Watanabe, Emiko
Matsumoto, Harue
Akiyama, Goichi
Mizota, Atsushi
Miyake, Yozo
Intraoperative Electroretinograms before and after Core Vitrectomy
title Intraoperative Electroretinograms before and after Core Vitrectomy
title_full Intraoperative Electroretinograms before and after Core Vitrectomy
title_fullStr Intraoperative Electroretinograms before and after Core Vitrectomy
title_full_unstemmed Intraoperative Electroretinograms before and after Core Vitrectomy
title_short Intraoperative Electroretinograms before and after Core Vitrectomy
title_sort intraoperative electroretinograms before and after core vitrectomy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4806841/
https://www.ncbi.nlm.nih.gov/pubmed/27010332
http://dx.doi.org/10.1371/journal.pone.0152052
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