Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
-
Multicenter Study Observational Study
Changes in electrocorticographic beta frequency components precede spreading depolarization in patients with acute brain injury.
Spreading depolarization (SD) occurs after traumatic brain injury, subarachnoid hemorrhage, malignant hemispheric stroke and intracranial hemorrhage. SD has been associated with secondary brain injury, which can be reduced by ketamine. In this present study frequency bands of electrocorticographic (ECoG) recordings were investigated with regards to SDs. ⋯ Alteration of beta frequency might help to predict occurrence of SDs in acutely brain injured patients.