Case of convulsive seizure developing during electroretinographic recordings: a case report

Abstract Background To present our findings in a case of convulsive seizures and loss of consciousness that developed during recording electroretinograms (ERG). Case presentation A 34-year-old man had reduced vision in his left eye for about 15 years, and night blindness for about two years. His vis...

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Main Authors: Yuko Hayashi, Gen Miura, Akiyuki Uzawa, Takayuki Baba, Shuichi Yamamoto
Format: Article
Language:English
Published: BMC 2018-04-01
Series:BMC Neurology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12883-018-1051-2
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author Yuko Hayashi
Gen Miura
Akiyuki Uzawa
Takayuki Baba
Shuichi Yamamoto
author_facet Yuko Hayashi
Gen Miura
Akiyuki Uzawa
Takayuki Baba
Shuichi Yamamoto
author_sort Yuko Hayashi
collection DOAJ
description Abstract Background To present our findings in a case of convulsive seizures and loss of consciousness that developed during recording electroretinograms (ERG). Case presentation A 34-year-old man had reduced vision in his left eye for about 15 years, and night blindness for about two years. His visual acuity was 20/15 in the right eye and 20/50 in the left eye. The fundus was normal but the sensitivity in the macular region of the left eye was decreased. Optical coherence tomography (OCT) showed partial loss of the interdigitation zone. Upon completion of the flicker ERG recording, a paralysis developed in both upper limbs, then convulsions of the lower limbs followed by a loss of consciousness. The convulsions disappeared after an intravenous injection of diazepam. After that incident, he reported that he had had previous conscious-loss seizures. Conclusions Photosensitive epileptic seizures can occur with the light stimuli used for conventional ERG recordings. We recommended that clinicians request information on any prior seizure episodes of the patients and their family members before ERG recordings.
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spelling doaj.art-9dc0b2286e924d8b9329ef37f54c0f622022-12-22T03:54:58ZengBMCBMC Neurology1471-23772018-04-011811410.1186/s12883-018-1051-2Case of convulsive seizure developing during electroretinographic recordings: a case reportYuko Hayashi0Gen Miura1Akiyuki Uzawa2Takayuki Baba3Shuichi Yamamoto4Department of Ophthalmology and Visual Science, Chiba University Graduate School of MedicineDepartment of Ophthalmology and Visual Science, Chiba University Graduate School of MedicineDepartment of Neurology, Graduate School of Medicine, Chiba UniversityDepartment of Ophthalmology and Visual Science, Chiba University Graduate School of MedicineDepartment of Ophthalmology and Visual Science, Chiba University Graduate School of MedicineAbstract Background To present our findings in a case of convulsive seizures and loss of consciousness that developed during recording electroretinograms (ERG). Case presentation A 34-year-old man had reduced vision in his left eye for about 15 years, and night blindness for about two years. His visual acuity was 20/15 in the right eye and 20/50 in the left eye. The fundus was normal but the sensitivity in the macular region of the left eye was decreased. Optical coherence tomography (OCT) showed partial loss of the interdigitation zone. Upon completion of the flicker ERG recording, a paralysis developed in both upper limbs, then convulsions of the lower limbs followed by a loss of consciousness. The convulsions disappeared after an intravenous injection of diazepam. After that incident, he reported that he had had previous conscious-loss seizures. Conclusions Photosensitive epileptic seizures can occur with the light stimuli used for conventional ERG recordings. We recommended that clinicians request information on any prior seizure episodes of the patients and their family members before ERG recordings.http://link.springer.com/article/10.1186/s12883-018-1051-2Electroretinogram (ERG)SeizureEpilepsyPhotosensitivity
spellingShingle Yuko Hayashi
Gen Miura
Akiyuki Uzawa
Takayuki Baba
Shuichi Yamamoto
Case of convulsive seizure developing during electroretinographic recordings: a case report
BMC Neurology
Electroretinogram (ERG)
Seizure
Epilepsy
Photosensitivity
title Case of convulsive seizure developing during electroretinographic recordings: a case report
title_full Case of convulsive seizure developing during electroretinographic recordings: a case report
title_fullStr Case of convulsive seizure developing during electroretinographic recordings: a case report
title_full_unstemmed Case of convulsive seizure developing during electroretinographic recordings: a case report
title_short Case of convulsive seizure developing during electroretinographic recordings: a case report
title_sort case of convulsive seizure developing during electroretinographic recordings a case report
topic Electroretinogram (ERG)
Seizure
Epilepsy
Photosensitivity
url http://link.springer.com/article/10.1186/s12883-018-1051-2
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