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Evidence-Based Complementary and Alternative Medicine
Volume 2013, Article ID 960240, 8 pages
Research Article

Effect of Laser Irradiation at Different Wavelengths (940, 808, and 658 nm) on Pressure Ulcer Healing: Results from a Clinical Study

1Department of Physiotherapy Basics, Academy of Physical Education in Katowice, Mikolowska 72 Street, 40-065 Katowice, Poland
2Department of Medical Biophysics, Medical University of Silesia in Katowice, Medykow 18 Street, 40-752 Katowice, Poland
3Department of Physiotherapy, Public Higher Professional Medical School in Opole, Katowicka 68 Street, 40-060 Opole, Poland
4Department of Descriptive and Topographic Anatomy, Medical University of Silesia in Katowice, Jordana 19 Street, 41-808 Zabrze, Poland
5Department of General and Vascular Surgery, Medical University of Silesia in Katowice, Ziolowa 45 Street, 40-635 Katowice, Poland
6Department of Physiotherapy in Internal Medicine, Academy of Physical Education in Katowice, Mikolowska 72 Street, 40-065 Katowice, Poland

Received 20 June 2013; Accepted 12 August 2013

Academic Editor: Gerhard Litscher

Copyright © 2013 J. Taradaj et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of the study was to assess the efficacy of laser therapy (at different wavelengths: 940, 808, and 658 nm) 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 50 mW and continuous radiation emission. Three separate wavelengths were used for the laser treatment: 940 nm (group I), 808 nm (group II), and 658 nm (group III). An average dose of 4 J/cm2 was applied. In group IV, a placebo was applied (laser device was turned off). The laser therapy at a wavelength of 658 nm appeared to be effective at healing pressure ulcers. The wavelengths of 808 and 940 nm did not have any effect in our study.