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玻璃体切除术前后的术中视网膜电图

Intraoperative Electroretinograms before and after Core Vitrectomy.

作者信息

Yagura Kazuma, Shinoda Kei, Matsumoto Soiti, Terauchi Gaku, Watanabe Emiko, Matsumoto Harue, Akiyama Goichi, Mizota Atsushi, Miyake Yozo

机构信息

Department of Ophthalmology, Teikyo University School of Medicine, Itabashi-ku, Tokyo, Japan.

Matsumoto Eye Clinic, Takagaki, Awa-cho, Awa-shi, Tokushima, Japan.

出版信息

PLoS One. 2016 Mar 24;11(3):e0152052. doi: 10.1371/journal.pone.0152052. eCollection 2016.

DOI:10.1371/journal.pone.0152052
PMID:27010332
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4806841/
Abstract

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.

摘要

目的

通过术中视网膜电图（ERG）评估核心玻璃体切割术前和术后的视网膜功能。

设计

回顾性连续病例系列。

方法

使用消毒的接触镜电极，对20例行非复杂性玻璃体手术的患眼在核心玻璃体切割术前及术后即刻记录全视野明视ERG。接触镜中嵌入发光二极管，以2Hz的频率给予150ms开和350ms关的刺激。分析a波、b波、d波、明视负反应（PhNR）和振荡电位（OPs）的振幅和潜伏期。在手术开始时及术后即刻用温度探头测量玻璃体中部的眼内温度。

结果

玻璃体切割术前眼内温度为33.2±1.3°C，术后为29.4±1.7°C。术后PhNR和OPs的振幅显著减小，所有成分的潜伏期均延长。这些变化与温度变化无显著相关性。

结论

核心玻璃体切割术后视网膜功能降低，同时伴有明显的温度降低。各ERG成分改变程度的差异提示不同类型视网膜神经元的敏感性不同。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/e80f1433735d/pone.0152052.g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/d0aae36f0e9f/pone.0152052.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/3f5d3c8e6073/pone.0152052.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/74e7fea1d944/pone.0152052.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/ad5522b57414/pone.0152052.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/010916f85163/pone.0152052.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/7c2a500d74c1/pone.0152052.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/4d9eddd62c07/pone.0152052.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/0c5059c8d0fc/pone.0152052.g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/e80f1433735d/pone.0152052.g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/d0aae36f0e9f/pone.0152052.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/3f5d3c8e6073/pone.0152052.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/74e7fea1d944/pone.0152052.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/ad5522b57414/pone.0152052.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/010916f85163/pone.0152052.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/7c2a500d74c1/pone.0152052.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/4d9eddd62c07/pone.0152052.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/0c5059c8d0fc/pone.0152052.g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50c7/4806841/e80f1433735d/pone.0152052.g009.jpg

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