PMID- 38178893 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240106 IS - 1664-2295 (Print) IS - 1664-2295 (Electronic) IS - 1664-2295 (Linking) VI - 14 DP - 2023 TI - A localized pallidal physiomarker in Meige syndrome. PG - 1286634 LID - 10.3389/fneur.2023.1286634 [doi] LID - 1286634 AB - OBJECTIVES: Oscillatory patterns in local field potentials (LFPs) have been recognized as disease-specific physiomarkers, particularly in the context of Parkinson's disease and cervical dystonia. This characteristic oscillatory feature is currently employed in adaptive deep brain stimulation (aDBS). However, for other types of dystonia, especially Meige syndrome, a distinct physiomarker of this nature is yet to be identified. METHODS: Local field potentials were recorded during microelectrode-guided deep brain stimulation surgery from 28 patients with primary Meige syndrome. Before surgery, the severity of patients' motor syndrome were assessed using the Burke-Fahn-Marsden Dystonia Rating Scale-Motor (BFMDRS-M). An instantaneous oscillation detection method was employed to identify true narrowband oscillations. Subsequently, a linear mixed effects model was utilized to examine the relationship between oscillatory activities (including power amplitude and burst duration) and symptom severity. RESULTS: The focal peaks of "oscillatory activities" detected were predominantly concentrated in the narrow theta band (4-8 Hz), constituting 81.5% of the total detected oscillations in all recording sites near active DBS contacts in the globus pallidus internus (GPi). The linear mixed effects model revealed a positive correlation between the theta burst duration and the severity of preoperative motor impairment, but no correlation with postoperative motor scores. Additionally, there was no significant lateralization effect observed between the left and right GPi. CONCLUSION: Our findings suggest that the exaggerated narrowband theta activity (mainly the burst duration) in the GPi is predictive of dystonia symptom severity and may be used as a physiomarker for optimized DBS target during surgery and adaptive DBS for the treatment of Meige syndrome. CI - Copyright (c) 2023 Zhang, Tian, Yu, Zhen, Zhang, Yuan and Wang. FAU - Zhang, Bo AU - Zhang B AD - Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China. AD - Guizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical University, Zunyi, China. FAU - Tian, Hong AU - Tian H AD - Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China. FAU - Yu, Yanbing AU - Yu Y AD - Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China. FAU - Zhen, Xueke AU - Zhen X AD - Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China. FAU - Zhang, Li AU - Zhang L AD - Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China. FAU - Yuan, Yue AU - Yuan Y AD - Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China. FAU - Wang, Liang AU - Wang L AD - CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China. AD - Department of Psychology, University of Chinese Academy of Sciences, Beijing, China. LA - eng PT - Journal Article DEP - 20231221 PL - Switzerland TA - Front Neurol JT - Frontiers in neurology JID - 101546899 PMC - PMC10764606 OTO - NOTNLM OT - Meige syndrome OT - deep brain stimulation OT - globus pallidus internus OT - local field potentials OT - theta oscillations COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2024/01/05 06:42 MHDA- 2024/01/05 06:43 PMCR- 2023/12/21 CRDT- 2024/01/05 03:46 PHST- 2023/08/31 00:00 [received] PHST- 2023/12/06 00:00 [accepted] PHST- 2024/01/05 06:43 [medline] PHST- 2024/01/05 06:42 [pubmed] PHST- 2024/01/05 03:46 [entrez] PHST- 2023/12/21 00:00 [pmc-release] AID - 10.3389/fneur.2023.1286634 [doi] PST - epublish SO - Front Neurol. 2023 Dec 21;14:1286634. doi: 10.3389/fneur.2023.1286634. eCollection 2023.