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Improved Sensitivity in Patients with Peripheral Neuropathy

Effects of Monochromatic Infrared Photo Energy

Salvatore L. DeLellis, DPM ^*, Dale H. Carnegie, DPM  and Thomas J. Burke, PhD 

^* Gulf Coast Foot, Ankle and Wound Center, Tarpon Springs, FL.
Podiatric Service, Denver Health Medical Center, Denver, CO.
Research and Clinical Affairs, Anodyne Therapy LLC, Tampa, FL.

Corresponding author: Thomas J. Burke, PhD, Director of Research and Clinical Affairs, Anodyne Therapy LLC, 13570 Wright Cir, Tampa, FL 33626.

Abstract

The medical records of 1,047 patients (mean age, 73 years) with established peripheral neuropathy were examined to determine whether treatment with monochromatic infrared photo energy was associated with increased foot sensitivity to the 5.07 Semmes-Weinstein monofilament. The peripheral neuropathy in 790 of these patients (75%) was due to diabetes mellitus. Before treatment with monochromatic infrared photo energy, of the ten tested sites (five on each foot), a mean ± SD of 7.9 ± 2.4 sites were insensitive to the 5.07 Semmes-Weinstein monofilament, and 1,033 patients exhibited loss of protective sensation. After treatment, the mean ± SD number of insensate sites on both feet was 2.3 ± 2.4, an improvement of 71%. Only 453 of 1,033 patients (43.9%) continued to have loss of protective sensation after treatment. Therefore, monochromatic infrared photo energy treatment seems to be associated with significant clinical improvement in foot sensation in patients, primarily Medicare aged, with peripheral neuropathy. Because insensitivity to the 5.07 Semmes-Weinstein monofilament has been reported to be a major risk factor for diabetic foot wounds, the use of monochromatic infrared photo energy may be associated with a reduced incidence of diabetic foot wounds and amputations. (J Am Podiatr Med Assoc 95(2): 143–147, 2005)

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