Parkinson Hastalığında Subtalamik Derin Beyin Stimülasyonunun Motor Sonuçlara Akut Etkileri; 13 Yıl Takip.

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Objective: Deep brain stimulation of the Subthalamic nucleus (STN-DBS) is a safe and well-established therapy for the management of refractory motor symptoms in Parkinson's disease (PD). Marked improvement in axial symptoms has been reported in the short term with STN-DBS but questions remain regarding the long-term efficacy of this intervention. We assessed the acute ON and OFF effects of STN-DBS in PD patients who have been treated with STN-DBS for over a decade. Methods: We assessed 11 patients with early-onset PD (9 men, 2 women; mean age, 57.1 ± 7.2 y; mean age at illness onset, 38.9 ± 7.5 y) managed with long-term bilateral STN-DBS (mean treatment duration, 13.4 ± 1.3 y). Motor symptoms were assessed by means of the Unified Parkinson's Disease Rating Scale (UPDRS)-III, Timed Up and Go test (TUG), and Hoehn-Yahr scale. Motor assessments in the medication ON and OFF states with stimulation ON and OFF conditions were documented and video recorded. Results: Patients showed a significant improvement in motor symptoms both in the off-medication and on-medication state by a 54% reduction (off-medication/on-stimulation vs. off-medication/off-stimulation) and a 48% reduction (on-medication/on-stimulation vs. on-medication/off-stimulation) in the total UPDRS-III score. Specifically, improvement in axial symptoms (off-medication: 51% reduction; on-medication: 44% reduction), including gait but not posture. Similarly, STN-DBS reduced TUG scores (off-medication: 70% reduction; on-medication: 47% reduction). Conclusions: On stimulation long-term, bilateral STN-DBS can improve appendicular and axial symptoms of patients with early-onset PD in the acute setting.

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