Research progress of generalized electroencephalography suppression after epileptic seizure as an electroencephalography marker of sudden unexpected death in epilepsy

At present, there is a lack of reliable prediction index for sudden unexpected death in epilepsy (SUDEP), which poses a great threat to the lives of patients with epilepsy. With the deepening of research, it has been found that postictal generalized electroencephalography suppression (PGES) occurs in EEG monitoring after seizure, especially generalized tonic⁃clonic seizure (GTCS). Since then, PGES has attracted much attention as a possible EEG marker of SUDEP. Combined with the study of the pathophysiological mechanism, related factors of PGES phenomenon, and this paper further analyzes the relationship between the occurrence of PGES and SUDEP