Comparing Cerebellar tDCS and Cerebellar tACS in Neurodegenerative Ataxias Using Wearable Sensors: A Randomized, Double-Blind, Sham-Controlled, Triple-Crossover Trial.
Transcranial alternating current stimulation
Transcranial direct current Stimulation
Wearable sensors
cerebellar Ataxia
Journal
Cerebellum (London, England)
ISSN: 1473-4230
Titre abrégé: Cerebellum
Pays: United States
ID NLM: 101089443
Informations de publication
Date de publication:
Apr 2024
Apr 2024
Historique:
accepted:
09
06
2023
pubmed:
23
6
2023
medline:
23
6
2023
entrez:
22
6
2023
Statut:
ppublish
Résumé
Cerebellar transcranial direct current stimulation (tDCS) represents a promising therapeutic approach for both motor and cognitive symptoms in neurodegenerative ataxias. Recently, transcranial alternating current stimulation (tACS) was also demonstrated to modulate cerebellar excitability by neuronal entrainment. To compare the effectiveness of cerebellar tDCS vs. cerebellar tACS in patients with neurodegenerative ataxia, we performed a double-blind, randomized, sham controlled, triple cross-over trial with cerebellar tDCS, cerebellar tACS or sham stimulation in twenty-six participants with neurodegenerative ataxia. Before entering the study, each participant underwent motor assessment with wearable sensors considering gait cadence (steps/minute), turn velocity (degrees/second) and turn duration (seconds), and a clinical evaluation with the scale for the Assessment and Rating of Ataxia (SARA) and the International Cooperative Ataxia Rating Scale (ICARS). After each intervention, participants underwent the same clinical assessment along with cerebellar inhibition (CBI) measurement, a marker of cerebellar activity. The gait cadence, turn velocity, SARA, and ICARS significantly improved after both tDCS and tACS, compared to sham stimulation (all p<0.010). Comparable effects were observed for CBI (p<0.001). Overall, tDCS significantly outperformed tACS on clinical scales and CBI (p<0.01). A significant correlation between changes of wearable sensors parameters from baseline and changes of clinical scales and CBI scores was detected. Cerebellar tDCS and cerebellar tACS are effective in ameliorating symptoms of neurodegenerative ataxias, with the former being more beneficial than the latter. Wearable sensors may serve as rater-unbiased outcome measures in future clinical trials. ClinicalTrial.gov Identifier: NCT05621200.
Identifiants
pubmed: 37349632
doi: 10.1007/s12311-023-01578-6
pii: 10.1007/s12311-023-01578-6
doi:
Banques de données
ClinicalTrials.gov
['NCT05621200']
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
570-578Informations de copyright
© 2023. The Author(s).
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