The present indication and future of deep brain stimulation.

Area of Science:

• Neuroscience
• Neurosurgery
• Medical Technology

Background:

• Deep brain stimulation (DBS) has a long history, initially for pain and later for movement disorders.
• DBS is now a recognized therapy for central nervous system (CNS) circuit disorders, with over 100,000 patients treated worldwide.
• Established indications include Parkinson's disease, tremor, and dystonia, with expanding use in neuropathic pain, epilepsy, tinnitus, and experimental psychiatric/cognitive disorders.

Purpose of the Study:

• To review the evolution and expanding applications of DBS in treating neurological and psychiatric conditions.
• To highlight the growing ethical considerations and regulatory debates surrounding novel DBS applications.
• To identify key future research directions for DBS technology and therapy.

Main Methods:

• Review of historical and current applications of DBS.
• Analysis of patient population and disease indications for DBS.
• Discussion of ethical implications and future research needs.

Main Results:

• DBS therapy has expanded significantly beyond movement disorders to include pain, epilepsy, and psychiatric conditions.
• Ethical debates are intensifying regarding new disease applications and potential human enhancement.
• Three critical areas for future development are mechanism elucidation, new method development, and system miniaturization.

Conclusions:

• DBS represents a significant advancement in functional neurosurgery, enabling brain circuit management for intractable disorders.
• Continued research into mechanisms, methods, and technology is crucial for optimizing DBS therapy.
• Addressing ethical considerations is paramount as DBS applications continue to broaden.