Journal
INTERVENTIONAL NEURORADIOLOGY
Volume 18, Issue 1, Pages 33-41Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/159101991201800105
Keywords
contrast; neurotoxicity; interventional neuroradiology; coiling; deficit
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Neurotoxicity from iodinated contrast agents is a known but rare complication of angiography and neurovascular intervention. Neurotoxicity results from contrast penetrating the blood-brain barrier with resultant cerebral oedema and altered neuronal excitability. Clinical effects include encephalopathy, seizures, cortical blindness and focal neurological deficits. Contrast induced encephalopathy is extensively reported as a transient and reversible phenomenon. We describe a patient with a persistent motor deficit due to an encephalopathy from iodinated contrast media administered during cerebral aneurysm coiling. This observation, and a review of the literature highlights that contrast-induced encephalopathy may not always have a benign outcome and can cause permanent deficits. This potential harmful effect should be recognised by the angiographer and the interventionalist.
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