Implanting intracranial electrodes does not affect spikes or network connectivity in nearby or connected brain regions.

ABSTRACT: To determine the effect of implanting electrodes on electrographic features of nearby and connected brain regions in patients with drug-resistant epilepsy, we analyzed intracranial EEG recordings from 10 patients with drug-resistant epilepsy who underwent implant revision (placement of additional electrodes) during their hospitalization. We performed automated spike detection and measured EEG functional networks. We analyzed the original electrodes that remained in place throughout the full EEG recording, and we measured the change in spike rates and network connectivity in these original electrodes in response to implanting new electrodes. There was no change in overall spike rate pre- to post-implant revision (t(9) = 0.1, p = 0.95). The peri-revision change in the distribut

SUBMITTER: Conrad EC 

PROVIDER: S-EPMC9810371 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature