Biomedicines (Sep 2022)

Freezing of Gait in Parkinson’s Disease Patients Treated with Bilateral Subthalamic Nucleus Deep Brain Stimulation: A Long-Term Overview

  • Giulia Di Rauso,
  • Francesco Cavallieri,
  • Isabella Campanini,
  • Annalisa Gessani,
  • Valentina Fioravanti,
  • Alberto Feletti,
  • Benedetta Damiano,
  • Sara Scaltriti,
  • Elisa Bardi,
  • Maria Giulia Corni,
  • Francesca Antonelli,
  • Vittorio Rispoli,
  • Francesca Cavalleri,
  • Maria Angela Molinari,
  • Sara Contardi,
  • Elisa Menozzi,
  • Annette Puzzolante,
  • Jessica Rossi,
  • Stefano Meletti,
  • Giuseppe Biagini,
  • Giacomo Pavesi,
  • Valerie Fraix,
  • Mirco Lusuardi,
  • Alessandro Fraternali,
  • Annibale Versari,
  • Carla Budriesi,
  • Elena Moro,
  • Andrea Merlo,
  • Franco Valzania

DOI
https://doi.org/10.3390/biomedicines10092214
Journal volume & issue
Vol. 10, no. 9
p. 2214

Abstract

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Bilateral subthalamic nucleus deep brain stimulation (STN-DBS) is an effective treatment in advanced Parkinson’s Disease (PD). However, the effects of STN-DBS on freezing of gait (FOG) are still debated, particularly in the long-term follow-up (≥5-years). The main aim of the current study is to evaluate the long-term effects of STN-DBS on FOG. Twenty STN-DBS treated PD patients were included. Each patient was assessed before surgery through a detailed neurological evaluation, including FOG score, and revaluated in the long-term (median follow-up: 5-years) in different stimulation and drug conditions. In the long term follow-up, FOG score significantly worsened in the off-stimulation/off-medication condition compared with the pre-operative off-medication assessment (z = −1.930; p = 0.05) but not in the on-stimulation/off-medication (z = −0.357; p = 0.721). There was also a significant improvement of FOG at long-term assessment by comparing on-stimulation/off-medication and off-stimulation/off-medication conditions (z = −2.944; p = 0.003). These results highlight the possible beneficial long-term effects of STN-DBS on FOG.

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