Effect of Laser Irradiation at Different Wavelengths (940, 808, and 658nm) on Pressure Ulcer Healing: Results from a Clinical Study J. Taradaj, T. Halski, M. Kucharzewski, T. Urbanek, U. Halska, and C. Kucio Evidence-Based Complementary and Alternative Medicine Volume 2013 (2013), Article ID 960240, 8 pages dx.doi.org/10.1155/2013/960240 The aim of the study was to assess the efficacy of laser therapy (at different wavelengths: 940, 808, and 658nm) for treating pressure ulcers. The primary endpoint in this trial included both the percentage reduction of the ulcer surface area and the percentage of completely healed wounds after one month of therapy (ulcer healing rate). The secondary endpoint was the ulcer healing rate at the follow-up evaluation (3 months after the end of the study). In total, 72 patients with stage II and III pressure ulcers received laser therapy once daily, 5 times per week for 1 month using a (GaAlAs) diode laser with a maximum output power of 50mW and continuous radiation emission. Three separate wavelengths were used for the laser treatment: 940nm (group I), 808nm (group II), and 658nm (group III). An average dose of 4J/cm2 was applied. In group IV, a placebo was applied (laser device was turned off). The laser therapy at a wavelength of 658nm appeared to be effective at healing pressure ulcers. The wavelengths of 808 and 940nm did not have any effect in our study.
Posted on: Mon, 18 Nov 2013 14:48:29 +0000
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