Electroclinical Features of Sudden Unexpected Death in Epilepsy (SUDEP) : a Multi-center Observational Study

Three types of video EEG monitoring equipment produced by Nicolet, Bio-logic and Nihon Kohden were used to collect data in the multi-center. The 19-lead recording electrode was placed according to the international 10-20 system, and the average lead was used. The recording time was 24h. All patients underwent eyes open and closed test, intermittent photic stimulation and hyperventilation induction test.