Systematic prolonged video-electroencephalograms identify electrographic seizures in 5% of acute stroke patients with aphasia

Rev Neurol (Paris). 2021 Oct;177(8):1001-1005. doi: 10.1016/j.neurol.2020.10.003. Epub 2021 Jan 20.

Abstract

In stroke units, diagnosing seizures may be difficult, especially in aphasic patients. We discuss herein our systematic 4-hour video EEG monitoring of 61 patients with aphasia within the first 72hours after the onset of ischaemic stroke. Five electrographic seizures were identified in 3 patients, with no clinical signs apparent on the video and no symptoms reported by patients. We did not record status epilepticus nor generalized seizure. Comparative analyses disclosed a higher risk of early seizures in patients with haemorrhagic transformation. Video EEG monitoring detected electrographic seizures in 5% of stroke patients with aphasia. This monitoring could be useful for selected patients, especially those with haemorrhagic transformation.

Keywords: Aphasia; EEG; Early seizure; Epilepsy; Ischemic stroke.

MeSH terms

  • Aphasia* / diagnosis
  • Aphasia* / etiology
  • Brain Ischemia*
  • Electroencephalography
  • Humans
  • Retrospective Studies
  • Seizures / diagnosis
  • Seizures / etiology
  • Stroke* / complications
  • Stroke* / diagnosis