Optimally targeting the centromedian nucleus of the thalamus for generalized epilepsy: A meta-analysis.
Centromedian nucleus
Deep brain stimulation
Epilepsy
Outcome
Review
Targeting
Thalamus
Journal
Epilepsy research
ISSN: 1872-6844
Titre abrégé: Epilepsy Res
Pays: Netherlands
ID NLM: 8703089
Informations de publication
Date de publication:
08 2022
08 2022
Historique:
received:
16
03
2022
revised:
13
05
2022
accepted:
25
05
2022
pubmed:
7
6
2022
medline:
14
7
2022
entrez:
6
6
2022
Statut:
ppublish
Résumé
Deep brain stimulation (DBS) of the centromedian nucleus (CM) is an effective therapeutic option for select patients with generalized epilepsy. However, several studies suggest that success varies with active contact location within the CM and the exact target remains undefined. To quantify the association between active contact location and outcomes across all published series of CM DBS. A literature search using PRISMA criteria was performed to identify all studies that reported active contact locations PLUS outcomes following DBS of the CM for epilepsy. Patient, disease, treatment, and outcome data were extracted for statistical analysis. Active contact locations were analyzed on a common reference frame and weighted by percent seizure reduction at last follow-up. From 184 studies that were screened for review, 3 studies comprising 47 patients met criteria for inclusion and were analyzed. At time of surgery, mean duration of epilepsy was 18 years. Pooled rates of atonic, atypical absence, generalized tonic-clonic, myoclonic, and tonic epilepsies were 38%, 74%, 68%, 14%, and 60%, respectively. Indirect targeting was used in all these studies. After a mean follow-up duration of 2.3 years, 87% of patients were deemed to be responders with mean seizure reduction of 73% (95% CI: [64%-81%]). Optimal location of the active contact was found to be at the dorsal border of the CM. Success following DBS of the CM for epilepsy varies by active contact location, even within the CM. Our findings suggest that stimulation within the dorsal region of the CM improves outcomes. Additional studies are needed to further refine these findings.
Sections du résumé
BACKGROUND
Deep brain stimulation (DBS) of the centromedian nucleus (CM) is an effective therapeutic option for select patients with generalized epilepsy. However, several studies suggest that success varies with active contact location within the CM and the exact target remains undefined.
OBJECTIVE
To quantify the association between active contact location and outcomes across all published series of CM DBS.
METHODS
A literature search using PRISMA criteria was performed to identify all studies that reported active contact locations PLUS outcomes following DBS of the CM for epilepsy. Patient, disease, treatment, and outcome data were extracted for statistical analysis. Active contact locations were analyzed on a common reference frame and weighted by percent seizure reduction at last follow-up.
RESULTS
From 184 studies that were screened for review, 3 studies comprising 47 patients met criteria for inclusion and were analyzed. At time of surgery, mean duration of epilepsy was 18 years. Pooled rates of atonic, atypical absence, generalized tonic-clonic, myoclonic, and tonic epilepsies were 38%, 74%, 68%, 14%, and 60%, respectively. Indirect targeting was used in all these studies. After a mean follow-up duration of 2.3 years, 87% of patients were deemed to be responders with mean seizure reduction of 73% (95% CI: [64%-81%]). Optimal location of the active contact was found to be at the dorsal border of the CM.
CONCLUSIONS
Success following DBS of the CM for epilepsy varies by active contact location, even within the CM. Our findings suggest that stimulation within the dorsal region of the CM improves outcomes. Additional studies are needed to further refine these findings.
Identifiants
pubmed: 35661572
pii: S0920-1211(22)00105-X
doi: 10.1016/j.eplepsyres.2022.106954
pii:
doi:
Types de publication
Journal Article
Meta-Analysis
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
106954Informations de copyright
Copyright © 2022 Elsevier B.V. All rights reserved.