Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report
Phenytoin is a widely prescribed antiepileptic agent for both focal and generalized seizure. We report a case of a 20-year-old man with focal epilepsy presented with acute bilateral visual loss, and delirium. His random phenytoin serum concentration on admission was 43.6 mg/L, well above the recomme...
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my.um.eprints.222262019-09-04T07:31:13Z http://eprints.um.edu.my/22226/ Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report Chew, Sin Hong Looi, Irene Lo, Yoke Lin Lim, Kheng Seang R Medicine Phenytoin is a widely prescribed antiepileptic agent for both focal and generalized seizure. We report a case of a 20-year-old man with focal epilepsy presented with acute bilateral visual loss, and delirium. His random phenytoin serum concentration on admission was 43.6 mg/L, well above the recommended therapeutic range of 10-20 mg/L. Extensive investigations have ruled out other vascular or demyelinating causes. His visual symptoms completely resolved after discontinuing phenytoin for 84 hours. This case shows that acute phenytoin toxicity can result in reversible visual failure. ASEAN Neurological Association 2018 Article PeerReviewed Chew, Sin Hong and Looi, Irene and Lo, Yoke Lin and Lim, Kheng Seang (2018) Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report. Neurology Asia, 23 (4). pp. 363-365. ISSN 1823-6138 https://www.neurology-asia.org/articles/neuroasia-2018-23(4)-363.pdf |
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R Medicine Chew, Sin Hong Looi, Irene Lo, Yoke Lin Lim, Kheng Seang Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
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Phenytoin is a widely prescribed antiepileptic agent for both focal and generalized seizure. We report a case of a 20-year-old man with focal epilepsy presented with acute bilateral visual loss, and delirium. His random phenytoin serum concentration on admission was 43.6 mg/L, well above the recommended therapeutic range of 10-20 mg/L. Extensive investigations have ruled out other vascular or demyelinating causes. His visual symptoms completely resolved after discontinuing phenytoin for 84 hours. This case shows that acute phenytoin toxicity can result in reversible visual failure. |
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Article |
author |
Chew, Sin Hong Looi, Irene Lo, Yoke Lin Lim, Kheng Seang |
author_facet |
Chew, Sin Hong Looi, Irene Lo, Yoke Lin Lim, Kheng Seang |
author_sort |
Chew, Sin Hong |
title |
Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
title_short |
Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
title_full |
Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
title_fullStr |
Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
title_full_unstemmed |
Phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
title_sort |
phenytoin toxicity presenting with acute visual loss and acute delirium, a case report |
publisher |
ASEAN Neurological Association |
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2018 |
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http://eprints.um.edu.my/22226/ https://www.neurology-asia.org/articles/neuroasia-2018-23(4)-363.pdf |
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