Significance of Very‐High‐Frequency Oscillations (Over 1,000Hz) in Epilepsy

We previously reported ictal very‐high‐frequency oscillations (VHFO) of 1,000 to 2,500Hz recorded by subdural macroelectrodes using a 10‐kHz sampling rate. The purpose of this study was to clarify the clinical significance of ictal VHFO in neocortical epilepsy.

[1]  M. Avoli,et al.  Seizure‐like discharges recorded in human dysplastic neocortex maintained in vitro , 1995, Neurology.

[2]  Ayako Ochi,et al.  Focal resection of fast ripples on extraoperative intracranial EEG improves seizure outcome in pediatric epilepsy , 2011, Epilepsia.

[3]  Ayako Ochi,et al.  High-frequency oscillations of ictal muscle activity and epileptogenic discharges on intracranial EEG in a temporal lobe epilepsy patient , 2008, Clinical Neurophysiology.

[4]  J. Gotman,et al.  High frequency oscillations in intracranial EEGs mark epileptogenicity rather than lesion type. , 2009, Brain : a journal of neurology.

[5]  K. Baba,et al.  P6-4 Very high frequency oscillations (over 1000 Hz) in human epilepsy , 2010, Clinical Neurophysiology.

[6]  Ayako Ochi,et al.  Dynamic Changes of Ictal High‐Frequency Oscillations in Neocortical Epilepsy: Using Multiple Band Frequency Analysis , 2007, Epilepsia.

[7]  Frederick Andermann,et al.  Intrinsic epileptogenicity of human dysplastic cortex as suggested by corticography and surgical results , 1995, Annals of neurology.

[8]  J. Gotman,et al.  High‐frequency electroencephalographic oscillations correlate with outcome of epilepsy surgery , 2010, Annals of neurology.

[9]  Eishi Asano,et al.  Spontaneous and visually driven high‐frequency oscillations in the occipital cortex: Intracranial recording in epileptic patients , 2012, Human brain mapping.

[10]  M. Pineda,et al.  Abnormal local-circuit neurons in epilepsia partialis continua associated with focal cortical dysplasia , 2004, Acta Neuropathologica.

[11]  Horst Urbach,et al.  Focal Cortical Dysplasia of Taylor's Balloon Cell Type: A Clinicopathological Entity with Characteristic Neuroimaging and Histopathological Features, and Favorable Postsurgical Outcome , 2002, Epilepsia.