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http://hdl.handle.net/1843/57004| Type: | Artigo de Periódico |
| Title: | Deep brain stimulation probing performance is enhanced by pairing stimulus with epileptic seizure |
| Authors: | Danielde Castro Medeiros Laio Bastos Paiva Raspante Flávio Afonso Gonçalves Mourão Vinícius Rezende Carvalho Eduardo Mazoni Andrade Marçal Mendes Marcio Flavio Dutra Moraes |
| Abstract: | The unpredictability of spontaneous and recurrent seizures significantly impairs the quality of life of patients with epilepsy. Probing neural network excitability with deep brain electrical stimulation (DBS) has shown prom ising results predicting pathological shifts in brain states. This work presents a proof-of-principal that active elec troencephalographic (EEG) probing, as a seizure predictive tool, is enhanced by pairing DBS and the electrographic seizure itself. The ictogenic model used consisted of inducing seizures by continuous intravenous infusion of pentylenetetrazol (PTZ — 2.5 mg/ml/min) while a probing DBS was delivered to the thalamus (TH) or amygdaloid complex to detect changes prior to seizure onset. Cortical electrophysiological recordings were per formed before, during, and after PTZ infusion. Thalamic DBS probing, but not amygdaloid, was able to predict sei zure onset without any observable proconvulsant effects. However, previously pairing amygdaloid DBS and epileptic polyspike discharges (day-1) elicited distinct preictal cortically recorded evoked response (CRER) (day-2) when compared with control groups that received the same amount of electrical pulses at different mo ments of the ictogenic progress at day-1. In conclusion, our results have demonstrated that the pairing strategy potentiated the detection of an altered brain state prior to the seizure onset. The EEG probing enhancement method opens many possibilities for both diagnosis and treatment of epilepsy |
| Subject: | Cerebro Amigdala Sondagem |
| language: | por |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA ICB - DEPARTAMENTO DE FISIOLOGIA E BIOFÍSICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.1016/j.yebeh.2018.09.048 |
| URI: | http://hdl.handle.net/1843/57004 |
| Issue Date: | 2018 |
| metadata.dc.url.externa: | https://www.epilepsybehavior.com/article/S1525-5050(18)30512-2/fulltext |
| metadata.dc.relation.ispartof: | Epilepsy & Behavior |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Deep brain stimulation probing performance is enhanced by pairing stimulus with epileptic seizure.pdf | 2.01 MB | Adobe PDF | View/Open |
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