Vagus nerve stimulation outcome prediction: from simple parameters to advanced models

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Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Lékařskou fakultu. Oficiální stránka publikace je na webu muni.cz.
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CHRASTINA Jan NOVÁK Zdeněk ZEMAN Tomáš DOLEŽALOVÁ Irena ZATLOUKALOVÁ Eva BRÁZDIL Milan

Rok publikování 2022
Druh Článek v odborném periodiku
Časopis / Zdroj Bratislava Medical Journal - Bratislavské lekárske listy
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
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Doi http://dx.doi.org/10.4149/BLL_2022_103
Klíčová slova KEY WORDS; epilepsy; vagus nerve stimulation; response predictor; EEG
Popis Since its approval as an adjunct treatment for refractory partial epilepsy, the positive effects of vagus nerve stimulation (VNS) on seizure frequency and severity have been supported by many studies. Seizure reduction of more than 50 % can be expected in at least 50 % of patients. However, a complete post-VNS seizure freedom is rarely achieved and 25 % of patients do not benefit from VNS. Our study provides an overview of the potential predictors of VNS response, from the most simple and basic data to sophisticated EEG processing studies and functional imaging studying brain connectivity. The data support better outcomes in younger patients with early VNS implantation, in patients with posttraumatic epilepsy or tuberous sclerosis, and in patients without bilateral interictal epileptiform discharges. The variability of heart activity has also been studied with some promising results. Because the generally accepted hypothesis of the VNS mechanism is the modulation of synaptic activity in multiple cortical and subcortical regions of the brain, the studies of brain response to external stimulation and/or of brain connectivity were used for models predicting the effect of VNS in individual patients. Although the predictive value of these models is high, the required special equipment and sophisticated mathematical tools limit their routine use (Ref. 58).
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