Adaptive Deep Brain Stimulation Benefits: Younger Patients with Persistent Wearing-off Symptoms

Area of Science:

• Neurology
• Biomedical Engineering
• Neuroscience

Background:

• Parkinson's disease (PD) motor symptoms like fluctuations and dyskinesia are challenging to manage with medication alone.
• Conventional deep brain stimulation (cDBS) has limitations, including side effect management and battery life.
• Adaptive deep brain stimulation (aDBS) offers dynamic adjustment of stimulation parameters based on real-time physiological feedback.

Purpose of the Study:

• To assess the 1-year efficacy, tolerability, and safety of adaptive deep brain stimulation (aDBS) in advanced Parkinson's disease (PD) patients.
• To evaluate changes in motor function, motor fluctuations, quality of life, and activities of daily living.

Main Methods:

• A prospective, single-arm study involving 19 patients with advanced PD transitioning from cDBS to aDBS.
• Baseline assessments under cDBS, followed by re-evaluation 1 year after switching to aDBS.
• Utilized Movement Disorder Society-Sponsored Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) and Parkinson's Disease Questionnaire-39 (PDQ-39) for assessments.

Main Results:

• Sixteen patients completed the 1-year follow-up.
• Significant improvements in motor function (MDS-UPDRS Part III) were observed.
• Patients with severe baseline wearing-off showed greater reductions in motor fluctuation (MDS-UPDRS Part IV); younger patients reported better quality of life (PDQ-39) and activities of daily living (MDS-UPDRS Part II).

Conclusions:

• aDBS demonstrates potential in managing motor symptoms for advanced PD, especially in patients with significant wearing-off and younger individuals.
• Dynamic adjustment of stimulation parameters by aDBS may offer personalized treatment.
• Further long-term studies are warranted to optimize aDBS and confirm its long-term benefits.