Electroencephalograms (EEG) were studied after removal of craniopharyngioma in 75 children. Correlation of the character of ECG changes with the severity of the clinical condition was revealed. Maximally manifested pathological EEG activity of the central areas of the cortex and a phase character of the EEG changes with different duration of the phases determined by the patient's condition were common to all patients, irrespective of the severity of their condition which was determined by the degree of the pathological changes in the thalamo-hypothalamic structures. Prognostic signs of the EEG changes were identified, which characterized a favorable or a complicated course of the postoperative process.
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