Novel targets in deep brain stimulation for movement disorders

Area of Science:

• Neurosurgery
• Neurology
• Movement Disorders

Background:

• Deep brain stimulation (DBS) is a key neurosurgical treatment for movement disorders.
• Conventional targets like the subthalamic nucleus (STN) and globus pallidus (GPi) are effective for Parkinson's disease, while the ventral intermediate nucleus (VIM) is used for tremor.
• Exploration of novel targets aims to enhance clinical benefits and minimize adverse effects.

Purpose of the Study:

• To comprehensively review the existing literature on novel deep brain stimulation targets for movement disorders.
• To consolidate information on the rationale, techniques, outcomes, and adverse effects of these emerging targets.
• To provide a resource for researchers and clinicians in the field of neurosurgical movement disorder treatment.

Main Methods:

• Systematic literature review of studies investigating novel DBS targets.
• Analysis of neurosurgical techniques, clinical outcomes, and adverse effects reported for each target.
• Synthesis of scattered reports to create a cohesive overview.

Main Results:

• Novel targets include the rostral zona incerta (rZI), caudal zona incerta (cZI)/posterior subthalamic area (PSA), prelemniscal radiation (Raprl), pedunculopontine nucleus (PPN), substantia nigra pars reticulata (SNr), centromedian/parafascicular (CM/PF) nucleus, nucleus basalis of Meynert (NBM), dentato-rubro-thalamic tract (DRTT), dentate nucleus, external globus pallidus (GPe), and ventral oralis (VO) complex.
• Outcomes and adverse effects associated with stimulation of these novel targets are varied and require further investigation.
• The literature on these novel targets is currently disparate, highlighting the need for a consolidated resource.

Conclusions:

• Novel DBS targets offer potential for improved treatment of movement disorders, expanding therapeutic options beyond conventional sites.
• Further research is needed to fully elucidate the efficacy, safety, and optimal application of these emerging targets.
• This review serves as a foundational resource for guiding future research and clinical practice in advanced DBS therapies.