Expanding indications for deep brain stimulation

Area of Science:

• Neurology
• Neurosurgery
• Medical Devices

Background:

• Deep brain stimulation (DBS) has been utilized for three decades, initially for tremors.
• Over 150,000 patients worldwide have received DBS for various neurological and psychiatric disorders.
• DBS is valued for its reversibility and titratability, offering adjustable therapeutic effects.

Purpose of the Study:

• To review the expanding indications for DBS beyond approved uses.
• To discuss the regulatory landscape for DBS therapies in the US and Europe.
• To highlight the importance of evidence-based practice and expert support in DBS procedures.

Main Methods:

• Review of current literature and clinical applications of DBS.
• Analysis of regulatory approvals and exemptions for DBS indications.
• Discussion of evidence-based practice and the challenges in conducting clinical trials for DBS.

Main Results:

• DBS is approved for Parkinson's disease and tremors in the US; dystonia and OCD have humanitarian exemptions.
• European regulatory bodies have approved more DBS indications compared to the US.
• Class 1 or 2 evidence is lacking for many DBS indications due to procedural complexities and limited trial data.

Conclusions:

• Despite its broad application, DBS faces regulatory hurdles due to insufficient high-level evidence for many indications.
• Careful patient selection, target identification, and experienced multidisciplinary teams are essential for DBS.
• DBS therapies should be conducted within institutional settings with ethical and scientific oversight.