THE THERMAL SAFETY OF HIGH POWERED CLASS IV LASER ON FEMALE LATERO-POSTERIOR THIGHS: ANALYSIS WITH INFRA-RED THERMOGRAPHY
Palavras-chave:
Phtobiomodulation, class IV laser, thermography, laser therapyResumo
Introduction: Photobiomodulation using Class 3B lasers has been used to treat esthetic and muscle-skeletal conditions for decades. Recently, High Powered Lasers (Class IV) have also been introduced to treat esthetic problems, it has raised reasonable criticism regarding safety and possible increases in skin temperature. The aim of the present study was to evaluate possible skin temperature changes after irradiatiation using Infra-red thermography. Methods: Twenty-five female and four male participants were enrolled in the study. After, skin temperature profiles of both side of the flanks were recorded using infra-red thermography before and 1,5 and 10 min after photobioodulation with a High Powered Class IV Laser with total energy of 1464 Joules (14.6 J/Cm2). Results: No significant changes in skin temperature were produced after laser irradiation with both probes in both groups of female and male participants. Conclusions: We conclude that Class IV Laser when applied in scanning mode to the male and female hip regions did not induce any temperature changes immediately after irradiation or after 1, 5 or 10 minutes. In the energy doses used in this protocol, the high-powered Class IV Laser was considered completely safe to use for treatment.
Referências
SOUSA, M.V.P., et al. Pain management using photobiomodulation: Mechanisms, location, and repeatability quantified by pain threshold and neural biomarkers in mice. Biophotonics, v. 11, n. 7, 2018.
HAMBLIN, M.R. Photobiomodulation for traumatic brain injury and stroke. J Neurosci Res, v. 96, n. 4, p. 731-743, 2018.
LOPES-MARTINS, R.A.B., et al. Photobiomodulation: Inhibition or Resolution of the Inflammatory Process? Photobiomodul Photomed Laser Surg, v. 38, n. 8, p. 453-454, 2020.
STAUSHOLM, M.B. Efficacy of low-level laser therapy on pain and disability in knee osteoarthritis: systematic review and meta-analysis of randomised placebo-controlled trials. BMJ Open, v. 9, n. 10, 2019.
SOHEILIFAR.; FATHI, H.; NAGHDI, N. Photobiomodulation therapy as a high potential treatment modality for COVID-19. Lasers Med Sci, v. 25, n.1, p. 1-4, 2020.
MORRIES, L.D.; CASSANO, P.; HENDERSON, T.A. Treatments for traumatic brain injury with emphasis on transcranial near-infrared laser phototherapy. Neuropsychiatr Dis Treat, v. 11, n. 1, p. 2159-2175, 2015.
ROBERTS, D.B.; KRUSE, R.J.; STOLL, S.F. The effectiveness of therapeutic class IV (10 W) laser treatment for epicondylitis. Lasers Surg Med, v. 45, n. 5, p.311-317, 2013.
EZZATI, K. The Beneficial Effects of High-Intensity Laser Therapy and Co-Interventions on Musculoskeletal Pain Management: A Systematic Review. J Lasers Med Sci, v. 11, n. 1, p. 81-90, 2020.
LIMA, A.M.C.T.; SILVA, S.L.P.; FONSECA, A.S. Photobiomodulation via multiple-wavelength radiations. Lasers Med Sci, v. 35, n. 2, p. 307-316, 2020.
NKENGNE, A.; PAPILLON, A.; BERTIN, C. Evaluation of the cellulite using a thermal infra-red camera. Skin Research and Technology, v. 19, n. 1, 2013.
HENDERSON, T.A.; MORRIES, L.D. Near-infrared photonic energy penetration: can infrared phototherapy effectively reach the human brain? Neuropsychiatric Disease and Treatment, v. 11, n. 1, p. 2191-2208, 2015.
JOENSEN, J., et al. The thermal effects of therapeutic lasers with 810 and 904 nm wavelengths on human skin. Photomed Laser Surg, v. 29, n. 3, p. 145-153, 2011.
CHOW, R.T.; HELLER, G.; BARNSLEY, L. The effect of 300 mW, 830 nm laser on chronic neck pain: a double-blind, randomized, placebo-controlled study. Pain, v. 124, n.1-2, p. 201-210, 2006.
CHOW, R.T.; DAVID, M.A; ARMATI, P.J. 830 nm laser irradiation induces varicosity formation, reduces mitochondrial membrane potential and blocks fast axonal flow in small and medium diameter rat dorsal root ganglion neurons: implications for the analgesic effects of 830 nm laser. J Peripher Nerv Syst, v. 12, n. 1, p. 28-39, 2007.
OHSHIRO, T. An introduction to LLLT. In: Progress in Laser Therapy. John Wiley & Sons, p 36–40, 1990.
CHOW, R.T.; ARMATI, P.J. Photobiomodulation: Implications for Anesthesia and Pain Relief. Photomed Laser Surg, v. 34, n. 12, p. 599-609, 2016.
