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Title: Modeling Energy Demands Of A DTM SCS Therapy Derivative On Rechargeable And Recharge-Free Systems
e-poster Number: INSIM24
Category: Pain
Author Name: Andrew Cleland
Institute:
Co-Author Name: David Provenzano, Kasra Amirdelfan, Prabhdeep Grewal, Francesco Riillo
Abstract :
Differential Target Multiplexed spinal cord stimulation (DTMâ„¢ SCS) coordinates multiple therapy signals with multiple targets and has been shown to provide superior back pain relief compared to traditional SCS.1 DTM SCS derivatives are being investigated to tailor therapy approaches for different patient profiles and equipment platforms.
This analysis uses programming data from an ongoing study to assess energy requirements of DTM endurance and model device longevity on the Vantaâ„¢ recharge-free system and recharge duration and interval on the Intellisâ„¢ rechargeable system.
Subject programming data were input into a rechargeable Intellisâ„¢ neurostimulator to determine recharge interval and input into a recharge-free Vantaâ„¢ neurostimulator to estimate battery longevity.
Current usage was calculated to be 47 ±3 µC/s (mean ±SE) for DTM endurance therapy from subject programming data 3-months. Energy modeling for DTM endurance therapy that was calculated from subject programming data at 3-months estimates an average recharge interval of 12.8 ±2.6 (mean ±SE) days for a 1-hour recharge on the Intellis™ SCS system and an average device longevity of 6.0 ±0.6 to 7.2 ±0.5 (mean ±SE) years on the Vanta™ SCS system.3 Results will be updated with 6-month data.
Reduced-energy DTM derivatives are currently being examined for therapeutic efficacy and energy requirements. These stimulation patterns have the potential to provide clinical benefit while enhancing patient experience through the reduction of recharge requirement and increased device longevity. Further research is needed to better understand therapeutic window, carryover effect, and washout to optimize cycling durations and ratios.
