Low Level laser Therapy in pain management

Anesthesiology, Critical Care and Pain Management Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran. Laser, whose name in the singular represents the acronym Light Amplification by Stimulated Emission of Radiation , have become indispensable tools for a wide array of medical and surgical applications. Low level laser therapy (LLLT) is the application of light (usually a low power laser or LED in the range of (1mW – 500mW) to a pathology to promote tissue regeneration, reduce inflammation and relieve pain. It is typically applied to the injury for a minute or so, a few times a week for several weeks. Unlike other medical laser procedures, LLLT is not an ablative or thermal mechanism, but rather a photochemical effect comparable to photosynthesis in plants whereby the light is absorbed and exerts a chemical change. It has been suggested that laser-mediated relief of pain may be linked to autonomic changes that produce vasodilatation and slight increases in local temperature. It is also possible that laser treatment affects the synthesis, release and metabolism of a range of neurochemicals involved in nerve transmission and pain relief. There is now evidence that low-Level laser (LLL) treatment can also provide safe and cost-effective treatment for wound healing, neurologic recovery, and pain reduction. Investigations into the benefits of LLL are taking place in a wide array of human medical fields, including sports medicine, dermatology, physical medicine/manual therapy, acupuncture, neuroendocrinology, rehabilitation medicine, trauma medicine, surgery, and dentistry. This Literature review try to collect current information about Low Level Laser therapy and its role in management of acute and chronic pain in variety of pathologies.

کلیدواژه ها:

Low level Laser ، mechanism ، Pain management