Postoperative Weight Gain and Body Composition in DBS Patients: Associations with IPG Recharge Efficiency

Area of Science:

• Neurology
• Biomedical Engineering

Background:

• Deep Brain Stimulation (DBS) is a common treatment for movement disorders.
• Weight gain is a known side effect of DBS implantation.
• The impact of body mass on DBS battery charging efficiency is not well understood.

Purpose of the Study:

• To investigate the relationship between body mass and the rate of battery charge acquisition in patients with DBS.
• To determine if biometric parameters influence charging times for the implantable pulse generator (IPG).

Main Methods:

• An exploratory cross-sectional study involving 30 participants with DBS.
• A standardized charging protocol was used to measure battery charge acquisition rates.
• Biometric data (weight, BMI, body fat percentage) were collected.

Main Results:

• 75% of participants gained weight post-DBS, averaging 6.7 Kg.
• A significant negative correlation was found between body fat and IPG charge rate in male participants (r=-0.6, p=0.02).
• No significant correlation was observed in female participants, despite higher body fat percentages.

Conclusions:

• Increased body mass, specifically adipose tissue, may impede IPG charging efficiency in men.
• Maintaining a stable weight after DBS implantation is recommended to ensure optimal device performance.
• Further research is needed to understand the lack of correlation in females.