• A patient experienced a persistent movement disorder comprising asterixis and head bobbing after metrizamide lumbar myelography. Metabolic and structural etiologic factors were excluded. To our knowledge, persistent asterixis and head bobbing as a complication of metrizamide myelography have not been described.
Davis CE, Smith C, Harris R. Persistent Movement Disorder Following Metrizamide Myelography. Arch Neurol. 1982;39(2):128. doi:10.1001/archneur.1982.00510140062017