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EEG Changes 24 Hours after Myelography with Metrizamide
Author(s) -
Koshino Yoshifumi,
Isaki Kiminori,
Kihara Yoshiharu,
Yamaguchi Nariyoshi,
Yugami Hiroshi,
Yamamoto Sekitoshi,
Baba Hisatoshi,
Umeda Shinichiro,
Shima Iwao,
Nomura Susumu
Publication year - 1985
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1985.tb01944.x
Subject(s) - metrizamide , myelography , electroencephalography , medicine , anesthesia , audiology , spinal cord , psychiatry
A prospective study of EEG changes following metrizamide myelography was made on 34 patients aged 17–79 years. EEGs were recorded just before and 22–26 hours after myelography. Usually 8–10 ml of metrizamide was injected by either lumbar or lateral cervical puncture. The concentration of metrizamide was relatively high. EEGs were abnormal in 15 out of the 20 patients whose baseline EEGs were normal. EEGs deteriorated in 10 of the 14 patients whose control tracings were abnormal. High voltage delta activity and/or a great deal of theta activity were common abnormalities. Three patients showed triphasic waves. No relationships were found between the EEG changes and clinical variables. But central nervous system involvements by metrizamide tended to be accompanied by a severe EEG slowing.