A Case Report of Transient Cortical Blindness after Angiography

研究成果: 雜誌貢獻文章

2 引文 (Scopus)

摘要

Introduction:Transient cortical blindness (TCB) is a rare complication after angiography and is proposed to be related to contrast extravasation. We present the first case of TCB after angiography that was evaluated using serial arterial spin-labeling magnetic resonance perfusion (ASLMRP) and susceptibility-weighted imaging (SWI).Case Report:A 65-year-old woman with dyslipidemia who had been treated for left vertebral artery dissection 3 months previously presented with dizziness and right hemiparesis. Magnetic resonance imaging of the brain revealed suspected dissection of the V4 segment of the left vertebral artery. Cerebral angiography was performed using a total of 46 mL of nonionic contrast material. Approximately 3 hours after the procedure, the patient started complaining of a slight headache and nausea along with bilateral cortical blindness. The 6-hour ASLMRP and SWI of the brain, respectively, revealed hypoperfusion and increased oxygen extraction fraction in the bilateral occipital lobes. The patient gradually regained vision over the next 12 hours, and follow-up ASLMRP and SWI revealed normal perfusion and normal SWI findings, respectively.Conclusions:Hypoperfusion on ASLMRP and increased oxygen extraction fraction on SWI results derived for a patient presenting with TCB were demonstrated. Thus, we hypothesize that endothelin-related vasoconstriction is a pathophysiologic mechanism for TCB. To the best of our knowledge, this report is the first to describe ASLMRP and SWI findings in TCB after angiography.
原文英語
頁(從 - 到)82-84
頁數3
期刊Neurologist
22
發行號3
DOIs
出版狀態已發佈 - 2017

指紋

Cortical Blindness
Angiography
Perfusion
Magnetic Resonance Spectroscopy
Vertebral Artery Dissection
Oxygen
Occipital Lobe
Cerebral Angiography
Vertebral Artery
Endothelins
Dizziness
Paresis
Dyslipidemias
Vasoconstriction
Neuroimaging
Nausea
Contrast Media
Headache
Dissection
Magnetic Resonance Imaging

ASJC Scopus subject areas

  • Clinical Neurology

引用此文

A Case Report of Transient Cortical Blindness after Angiography. / Chen, Chih Yen; Chen, Chi Jen; Tseng, Ying Chi.

於: Neurologist, 卷 22, 編號 3, 2017, p. 82-84.

研究成果: 雜誌貢獻文章

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AB - Introduction:Transient cortical blindness (TCB) is a rare complication after angiography and is proposed to be related to contrast extravasation. We present the first case of TCB after angiography that was evaluated using serial arterial spin-labeling magnetic resonance perfusion (ASLMRP) and susceptibility-weighted imaging (SWI).Case Report:A 65-year-old woman with dyslipidemia who had been treated for left vertebral artery dissection 3 months previously presented with dizziness and right hemiparesis. Magnetic resonance imaging of the brain revealed suspected dissection of the V4 segment of the left vertebral artery. Cerebral angiography was performed using a total of 46 mL of nonionic contrast material. Approximately 3 hours after the procedure, the patient started complaining of a slight headache and nausea along with bilateral cortical blindness. The 6-hour ASLMRP and SWI of the brain, respectively, revealed hypoperfusion and increased oxygen extraction fraction in the bilateral occipital lobes. The patient gradually regained vision over the next 12 hours, and follow-up ASLMRP and SWI revealed normal perfusion and normal SWI findings, respectively.Conclusions:Hypoperfusion on ASLMRP and increased oxygen extraction fraction on SWI results derived for a patient presenting with TCB were demonstrated. Thus, we hypothesize that endothelin-related vasoconstriction is a pathophysiologic mechanism for TCB. To the best of our knowledge, this report is the first to describe ASLMRP and SWI findings in TCB after angiography.

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