SummaryTwo cases of hypoglycemic coma with neurological sequelæare reported : Wernicke’s aphasia in the first case and global intellectual deficiency associated with a schizoïd appearance in the second.Electroencephalograms of the first case has shown diminishedαactivity in the temporo-occipital regions, more on the left side, several weeks after the comaElectroencephalograms of the second patient was characterized by slowθwaves which disappeared after some weeks. However, four months later, very short hyperpnea was sufficient to elicit generalized slow waves activity.