RecoveryRx Postamputation Pain Study gets NIH Publ
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Posted On: 08/19/2022 11:08:01 AM
RecoveryRx Postamputation Pain Study gets NIH Publication
Brian M Ilfeld 1 2, Engy T Said 1, Baharin Abdullah 1, John J Finneran Iv 1 2
Affiliations
1Department of Anesthesiology, University of California San Diego (UCSD), San Diego, CA, USA.
2Outcomes Research Consortium, Cleveland, OH, USA.
PMID: 35976802 DOI: 10.12659/AJCR.937549
Abstract
BACKGROUND Postamputation phantom and residual limb pain are common and frequently intractable, with few reliably effective treatments. Pulsed nonthermal shortwave (radiofrequency) electromagnetic field therapy is a noninvasive treatment used previously as an adjunct analgesic and wound healing therapy. Its use for postamputation pain remains unexamined. CASE REPORT Twelve patients with an above or below knee amputation with persistent, intractable phantom and/or residual limb pain unresponsive to multiple previous invasive treatments were provided with a noninvasive, wearable, pulsed electromagnetic field device (RecoveryRx, BioElectronics Corporation, Frederick, MD, USA). Patients used the included dressings to self-apply the 12 cm-diameter ringed antenna to their residual limb and then activated the device, which delivered nonthermal radiofrequency energy continuously for up to 30 days. Of the 12 individuals, 4 (33%) experienced minimal/no change, 7 (58%) rated their phantom and/or residual limb pain as "very much improved" at the conclusion of treatment, and 1 (8%) patient reported "moderate" improvement, using the Patient Global Impression of Change scale. Of the 8 responders, worst and average phantom limb pain improved a mean (SD) of 4.0 (2.9) and 4.2 (1.
points on the 0 to 10 numeric rating scale, respectively. Worst and average residual limb pain improved 5.4 (3.7) and 3.5 (2.4) points, respectively. CONCLUSIONS These cases suggest that pulsed electromagnetic field therapy may be an effective treatment for intractable postamputation pain. Considering the low patient burden of noninvasive, wearable devices, combined with few contraindications and no significant side effects or adverse events, further study with a randomized, controlled trial is warranted.
https://pubmed.ncbi.nlm.nih.gov/35976802/
Brian M Ilfeld 1 2, Engy T Said 1, Baharin Abdullah 1, John J Finneran Iv 1 2
Affiliations
1Department of Anesthesiology, University of California San Diego (UCSD), San Diego, CA, USA.
2Outcomes Research Consortium, Cleveland, OH, USA.
PMID: 35976802 DOI: 10.12659/AJCR.937549
Abstract
BACKGROUND Postamputation phantom and residual limb pain are common and frequently intractable, with few reliably effective treatments. Pulsed nonthermal shortwave (radiofrequency) electromagnetic field therapy is a noninvasive treatment used previously as an adjunct analgesic and wound healing therapy. Its use for postamputation pain remains unexamined. CASE REPORT Twelve patients with an above or below knee amputation with persistent, intractable phantom and/or residual limb pain unresponsive to multiple previous invasive treatments were provided with a noninvasive, wearable, pulsed electromagnetic field device (RecoveryRx, BioElectronics Corporation, Frederick, MD, USA). Patients used the included dressings to self-apply the 12 cm-diameter ringed antenna to their residual limb and then activated the device, which delivered nonthermal radiofrequency energy continuously for up to 30 days. Of the 12 individuals, 4 (33%) experienced minimal/no change, 7 (58%) rated their phantom and/or residual limb pain as "very much improved" at the conclusion of treatment, and 1 (8%) patient reported "moderate" improvement, using the Patient Global Impression of Change scale. Of the 8 responders, worst and average phantom limb pain improved a mean (SD) of 4.0 (2.9) and 4.2 (1.
points on the 0 to 10 numeric rating scale, respectively. Worst and average residual limb pain improved 5.4 (3.7) and 3.5 (2.4) points, respectively. CONCLUSIONS These cases suggest that pulsed electromagnetic field therapy may be an effective treatment for intractable postamputation pain. Considering the low patient burden of noninvasive, wearable devices, combined with few contraindications and no significant side effects or adverse events, further study with a randomized, controlled trial is warranted. https://pubmed.ncbi.nlm.nih.gov/35976802/
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