title: [Consciousness Impairment and Left Hemiparesis due to Contrast Medium in the Coil Embolization of Unruptured Large Right Middle Cerebral Artery Aneurysm: A Case Report].
abstract: 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.
authors.affiliation: Department of Neurosurgery, Himeji Medical Center.
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Nakajima
authors.forename: Masaomi
authors.initials: M
authors.lastname: Koyanagi
authors.forename: Tamaki
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Rei
authors.initials: R
authors.lastname: Enatsu
authors.forename: Masashi
authors.initials: M
authors.lastname: Oda
authors.forename: Masaaki
authors.initials: M
authors.lastname: Saiki
mesh_terms: D000368:Aged; D002533:Cerebral Angiography; D002539:Cerebral Arterial Diseases / Q000628:therapy*; D003244:Consciousness Disorders / Q000139:chemically induced*; D003287:Contrast Media / Q000009:adverse effects*; D004621:Embolization, Therapeutic; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000628:therapy*; D008279:Magnetic Resonance Imaging; D008297:Male; D064847:Multimodal Imaging; D010291:Paresis / Q000139:chemically induced*
chemical_list: D003287:Contrast Media