**8. Recent advance in epilepsy surgery**

Minimally invasive intracranial endovascular EEG monitoring by means of nanowire and catheter and stent-electrode recordings is evolving [61]. High frequency Oscillations (HFOs) are believed as a potential marker for detection of epileptogenicity and predictive factor for epilepsy surgery outcome. However, a meta-analysis was able to show the significant but small relation between removal of HFO-generating brain region and outcome [62–64].
