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Exceptionally long absence status: multifactorial etiology, drug interactions and complications Volume 1, issue 4, Décembre 1999


   
  

Figure 1. A. Pre-status EEG, "Queen square-parasagittal" montage. Generalized spike and waves at 3 Hz with anterior head regions predominance. Background activity consists of a well-regulated 9 Hz alpha rhythm. B. EEG during status, referential montage to the ipsilateral ear. Generalized slow spike and wave complexes at 2-3 Hz, interspersed with rhythmic high amplitude 2-3 Hz delta waves.




   
  

Figure 2. MRI of the head, axial FLAIR sequence showing cortical and subcortical athrophy and hyperintense lesions scattered through the white matter of the centrum semiovale, compatible with ischemic leucoencephalopathy.