Consciousness Impairment and Left Hemiparesis due to Contrast Medium in the Coil Embolization of Unruptured Large Right Middle Cerebral Artery Aneurysm: A Case Report

Neurological deficits following coil embolization of anterior circulation aneurysms due to the toxicity of contrast medium are rare. Here, we describe a patient with mild consciousness impairment and left hemiparesis following coil embolization of a large right middle cerebral artery aneurysm withou...

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Bibliographic Details
Published inNō shinkei geka Vol. 44; no. 5; p. 377
Main Authors Nakajima, Nobuhiko, Koyanagi, Masaomi, Kobayashi, Tamaki, Enatsu, Rei, Oda, Masashi, Saiki, Masaaki
Format Journal Article
LanguageJapanese
Published Japan 01.05.2016
Subjects
Aged
Cerebral Angiography
Cerebral Arterial Diseases - therapy
Consciousness Disorders - chemically induced
Contrast Media - adverse effects
Embolization, Therapeutic
Humans
Imaging, Three-Dimensional
Intracranial Aneurysm - therapy
Magnetic Resonance Imaging
Male
Multimodal Imaging
Paresis - chemically induced
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Summary:Neurological deficits following coil embolization of anterior circulation aneurysms due to the toxicity of contrast medium are rare. Here, we describe a patient with mild consciousness impairment and left hemiparesis following coil embolization of a large right middle cerebral artery aneurysm without evidence of ischemia or hemorrhage, who recovered completely with conservative treatment. The patient's clinical course and radiological findings led us to conclude that the neurological deficits were due to the toxic effect of contrast medium used during the coil embolization.
ISSN:0301-2603
DOI:10.11477/mf.1436203294