The American Academy of Pain Medicine      Annual Meeting Home Page     
24th Annual Meeting
February 13-16, 2008
Orlando, FL

© 2006 American Academy of Pain Medicine
 


Thursday, February 14, 2008
136

Restart of a Rechargeable Implantable Pulse Generator After 10 Months

Billy K. Huh, MD, PhD1, Jennifer Arthur, BBA2, William A. Hautt, BBA2, and Dave Primm, MA, ELS2. (1) Duke University Pain and Palliative Care Clinic, Durham, NC, USA, (2) Advanced Neuromodulation Systems, Plano, TX, USA

Introduction Rechargeable implantable pulse generators (R-IPGs) experience low-level energy consumption (background drain) when not in use. Should too much of their battery capacity be consumed while inactive, R-IPGs may enter a reserve state or require reprogramming. Here we present the case of a patient whose R-IPG was switched off and then restarted after an extended time period. Methods The patient was a 32-year-old female with intractable pain who received effective pain relief from neurostimulation using a large-capacity R-IPG (Fig. 1). She later became pregnant but was concerned about exposure to radio-frequency energy used to recharge her device. After consulting her physician, the patient turned off her R-IPG for the term of her pregnancy. Results The patient's R-IPG was restarted after 10 months without its entering a reserve state or needing reprogramming. Paresthesia coverage and pain relief were reestablished at prior levels. The battery capacity of the R-IPG was estimated to have been reduced slightly during the inactive period (Fig. 2). Conclusion The patient's therapy was resumed without incident. The ability to easily restart R-IPGs after long periods of inactivity adds flexibility to neurostimulation therapy.


References: none
Funding: This research was supported by Advanced Neuromodulation Systems.

William A. Hautt, BBA
Conflict of Interest Disclosure: ANS, employee