[Electroencephalographic studies of 100 cases of migraine (control groups included)]

The investigations were done in a group of 100 patients with migraine, 50 patients with chronic diseases of various organs and 50 healthy subjects. EEG investigations in patients with migraine were carried out several times, in controls only once. The records were interpreted according to strictly defined criteria separating normal from pathological (slightly, moderately and severely) records. In 35% of migrainous patients slight or moderate changes were found. The frequency of these changes was significantly increased in relation to healthy subjects and approached the frequency found in non-neurological cases. EEG changes in migrainous patients failed to demonstrate any specific features and failed to correlate with clinical findings. The analysis of 330 EEG records in 100 cases of migraine demonstrated that some records changed in time and that the number of records showing deterioration was greater than that of records showing improvement.