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024 7 _ |a 10.1016/j.parkreldis.2023.105478
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024 7 _ |a 1353-8020
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024 7 _ |a 10.34734/FZJ-2023-02378
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100 1 _ |a Strelow, Joshua N.
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245 _ _ |a Low beta-band suppression as a tool for DBS contact selection for akinetic-rigid symptoms in Parkinson's disease
260 _ _ |a Amsterdam [u.a.]
|c 2023
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520 _ _ |a AbstractBackground: Suppression of pathologically altered activity in the beta-band has previously been suggested as a biomarker for feedback-based neurostimulation in subthalamic deep brain stimulation (STN-DBS) for Parkinson's Disease (PD).Objective: To assess the utility of beta-band suppression as a tool for contact selection in STN-DBS for PD.Methods: A sample of seven PD patients (13 hemispheres) with newly implanted directional DBS leads of the STN were recorded during a standardized monopolar contact review (MPR). Recordings were received from contact pairs adjacent to the stimulation contact. The degree of beta-band suppression for each investigated contact was then correlated to the respective clinical results. Additionally, we have implemented a cumulative ROC analysis, to test the predictive value of beta-band suppression on the clinical efficacy of the respective contacts.Results: Stimulation ramping led to frequency-specific changes in the beta-band, while lower frequencies remained unaffected. Most importantly, our results showed that the degree of low beta-band suppression from baseline activity (stimulation off) served as a predictor for clinical efficacy of the respective stimulation contact. In contrast suppression of high beta-band activity yielded no predictive power.Conclusion: The degree of low beta-band suppression can serve as a time-saving, objective tool for contact selection in STN-DBS.Keywords: DBS programming; Deep brain stimulation (DBS); Local field potential (LFP); Nucleus subthalamicus (STN).
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536 _ _ |a DFG project 431549029 - SFB 1451: Schlüsselmechanismen normaler und krankheitsbedingt gestörter motorischer Kontrolle (431549029)
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700 1 _ |a Dembek, Till A.
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700 1 _ |a Baldermann, Juan C.
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700 1 _ |a Andrade, Pablo
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700 1 _ |a Fink, Gereon R.
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700 1 _ |a Visser-Vandewalle, Veerle
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700 1 _ |a Barbe, Michael T.
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773 _ _ |a 10.1016/j.parkreldis.2023.105478
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