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Video-EEG illustration of transient episodes of loss of consciousness correlating with plateau-waves due to intracranial hypertension Volume 22, numéro 4, August 2020

Vidéo

  • Video-EEG illustration of transient episodes of loss of consciousness correlating with plateau-waves due to intracranial hypertension

Illustrations


  • Figure 1

A 54-year-old woman, with relapsing mantle B-cell lymphoma, was admitted due to recurrent unresponsive episodes. During video-EEG recording, the patient became transiently unresponsive for 12 minutes with starring and brachiofacial automatisms (see video sequence), with correlating diffuse EEG delta activity that resolved spontaneously, without epileptic discharge, cardiac arrhythmia, or hypotension (figure 1). No intracranial lesion was identified on neuroimaging. Lumbar puncture revealed increased CSF pressure and infiltrating lymphomatous cells, confirming a diagnosis of leptomeningeal metastases. Transient neurological events can be linked to increased intracranial pressure, generating a decrease in cerebral perfusion and EEG “plateau-waves” (Cooper and Hulme, 1969; Munari and Calbucci, 1981; Chen et al., 2012; Gold et al., 2016; Stretz et al., 2017). This entity may be differentiated from differential diagnoses based on EEG.

 

Disclosures

None of the authors have any conflict of interest to declare.