Patient Experience With Rechargeable Deep Brain Stimulation Generators for Obsessive-Compulsive Disorder.

Area of Science:

• Neuroscience
• Psychiatry
• Biomedical Engineering

Background:

• Rechargeable deep brain stimulation (DBS) systems offer extended device lifespan and reduced surgical replacement frequency.
• Obsessive-compulsive disorder (OCD) patients require higher stimulation settings, leading to more frequent recharging needs for these systems.

Purpose of the Study:

• To evaluate patient experiences with rechargeable implantable pulse generators (RC IPGs) for OCD treatment.
• To analyze charging routines, perceived vs. actual charge burden, and unique considerations of RC technology in psychiatric DBS therapy.

Main Methods:

• Interviews with OCD patients implanted with RC IPGs to assess recharging experiences.
• Gathering battery usage data directly from device downloads.
• Utilizing surveys and device data to compare self-reported vs. actual charging metrics and calculate weekly charge burden.

Main Results:

• OCD patients experienced significantly shorter recharge intervals (average 29.5 hours) compared to movement disorder patients.
• Despite daily integration, the weekly charge burden averaged 209.5 minutes, with discrepancies between perceived and actual charging times.
• Some patients reported anxiety or fixation related to battery levels, highlighting psychological impacts.

Conclusions:

• RC IPGs enhance DBS therapy for OCD by reducing surgical risks and costs associated with frequent replacements.
• OCD patients require recharging every 1-2 days, a substantial increase compared to the 1-2 week intervals typical for movement disorder patients.
• Personalized DBS therapy must consider individual patient needs, and primary cell systems may be more suitable for patients struggling with charging management.