Genetic Etiology Influences the Low-Frequency Components of Globus Pallidus Internus Electrophysiology in Dystonia

  • Ahmet Kaymak
  • , Luigi M. Romito*
  • , Fabiana Colucci
  • , Nico Golfrè Andreasi
  • , Roberta Telese
  • , Sara Rinaldo
  • , Vincenzo Levi
  • , Giovanna Zorzi
  • , Zvi Israel
  • , David Arkadir
  • , Hagai Bergman
  • , Miryam Carecchio
  • , Holger Prokisch
  • , Michael Zech
  • , Barbara Garavaglia
  • , Alberto Mazzoni*
  • , Roberto Eleopra
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Elevated low-frequency activity (4–12 Hz) within the globus pallidus internus (GPi) has been consistently associated with dystonia. However, the impacts of the genetic etiology of dystonia on low-frequency GPi activity remain unclear; yet it holds importance for adaptive deep brain stimulation (DBS) treatment. Methods: We compared the properties of GPi electrophysiology acquired from 70 microelectrode recordings (MER) trajectories of DYT-GNAL, DYT-KMT2B, DYT-SGCE, DYT-THAP1, DYT-TOR1A, DYT-VPS16, and idiopathic dystonia (iDYT) patients who underwent GPi-DBS surgery across standard frequency bands. Results: DYT-SGCE patients exhibited significantly lower alpha band activity (2.97%) compared to iDYT (4.44%, p = 0.006) and DYT-THAP1 (4.51%, p = 0.011). Additionally, theta band power was also significantly reduced in DYT-SGCE (4.42%) compared to iDYT and DYT-THAP1 (7.91% and 7.00%, p < 0.05). Instead, the genetic etiology of dystonia did not affect the spatial characteristics of GPi electrophysiology along MER trajectories. Conclusion: Considering the genetic etiology of dystonia in closed-loop DBS treatments and utilizing theta and alpha activity for GPi stimulation may optimize clinical outcomes. MER-based DBS lead placement can proceed independently of the underlying genetic cause.

Original languageEnglish
Article numbere70098
JournalEuropean Journal of Neurology
Volume32
Issue number3
DOIs
StatePublished - Mar 2025

Bibliographical note

Publisher Copyright:
© 2025 The Author(s). European Journal of Neurology published by John Wiley & Sons Ltd on behalf of European Academy of Neurology.

Keywords

  • alpha oscillations
  • deep brain stimulation
  • dystonia
  • electrophysiology
  • genetics

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