Effects of linear polarized near infrared light irradiation in the treatment of pressure ulcer of stage II

Abstract

Objective To observe the effects of linear polarized near infrared light irradiation (Super- lizer, SL) in the treatment of patients with pressure ulcer of stage Ⅱ, and explore the proper treatment parame- ters. Methods Fifty patients with pressure ulcer of stage Ⅱ according to National Pressure Ulcer Advisory Panel (NPUAP) were randomly divided into 70% power group and 100% power group, 25 cases in each group. The cure rate, effective rate and average wound healing time were observed in the two groups. Results The ef- fective rate and cure rate were 78.4% (29/37 wound numbers) and 51.4% (19/37 wound numbers) respectively in 70% power group, which were obviously lower than 92.5% (37/40 wound numbers) and 65.0% (26/40 wound numbers) in 100% power group. The average healing time (17.5 ± 2.2) d in 70% power group was significantly longer than that of 100% power group (14.9±2.3) d. Conclusion The effects of linear polarized near infrared light irradiation with B probe 100% power are better than 70% power in the treatment of pressure ulcer of stage Ⅱ, and its average healing time is shorter. Key words: Superlizer; Radiation therapy; Pressure ulcer