Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain

In order to study the efficacy of linear-polarized near-infrared light irradiation (LPNIR) on relieving chronic pain in conjunction with nerve block (NB) or local block (LB), a 3-week prospective, randomized, double-blind, controlled study was conducted to evaluate the pre- and post-therapy pain int...

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Main Authors: Dong Huang, Yong-Hong Gu, Qin Liao, Xue-Bin Yan, Shai-Hong Zhu, Chang-Qing Gao
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/567496
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author Dong Huang
Yong-Hong Gu
Qin Liao
Xue-Bin Yan
Shai-Hong Zhu
Chang-Qing Gao
author_facet Dong Huang
Yong-Hong Gu
Qin Liao
Xue-Bin Yan
Shai-Hong Zhu
Chang-Qing Gao
author_sort Dong Huang
collection DOAJ
description In order to study the efficacy of linear-polarized near-infrared light irradiation (LPNIR) on relieving chronic pain in conjunction with nerve block (NB) or local block (LB), a 3-week prospective, randomized, double-blind, controlled study was conducted to evaluate the pre- and post-therapy pain intensity. Visual analogue scales (VASs) were measured in all patients before and 6 months after therapy visiting the pain clinic during the period of August 2007 to January 2008. A total of 52 patients with either shoulder periarthritis or myofascial pain syndrome or lateral epicondylitis were randomly assigned into two groups by drawing lots. Patients in Group I were treated with NB or LB plus LPNIR; Group II patients, for their part, were treated with the same procedures as in Group I, but not using LPNIR. In both groups, the pain intensity (VAS score) decreased significantly immediately after therapy as compared to therapy. There was a significant difference between the test and control groups immediately after therapy (P<0.05), while no effect 6 months later. No side effects were observed. It is concluded that LPNIR is an effective and safe modality to treat various chronic pains, which has synergic effects with NB or LB.
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series The Scientific World Journal
spelling doaj-art-032964a15a27404db692df65b3da1fdf2025-02-03T05:59:37ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/567496567496Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic PainDong Huang0Yong-Hong Gu1Qin Liao2Xue-Bin Yan3Shai-Hong Zhu4Chang-Qing Gao5Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, ChinaDepartment of Pathology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, ChinaDepartment of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, ChinaDepartment of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, ChinaResearch Center for Medical Sciences, The Third Xiangya Hospital of Central South University, TongZiPo Road 138, Changsha, Hunan 410013, ChinaResearch Center for Medical Sciences, The Third Xiangya Hospital of Central South University, TongZiPo Road 138, Changsha, Hunan 410013, ChinaIn order to study the efficacy of linear-polarized near-infrared light irradiation (LPNIR) on relieving chronic pain in conjunction with nerve block (NB) or local block (LB), a 3-week prospective, randomized, double-blind, controlled study was conducted to evaluate the pre- and post-therapy pain intensity. Visual analogue scales (VASs) were measured in all patients before and 6 months after therapy visiting the pain clinic during the period of August 2007 to January 2008. A total of 52 patients with either shoulder periarthritis or myofascial pain syndrome or lateral epicondylitis were randomly assigned into two groups by drawing lots. Patients in Group I were treated with NB or LB plus LPNIR; Group II patients, for their part, were treated with the same procedures as in Group I, but not using LPNIR. In both groups, the pain intensity (VAS score) decreased significantly immediately after therapy as compared to therapy. There was a significant difference between the test and control groups immediately after therapy (P<0.05), while no effect 6 months later. No side effects were observed. It is concluded that LPNIR is an effective and safe modality to treat various chronic pains, which has synergic effects with NB or LB.http://dx.doi.org/10.1100/2012/567496
spellingShingle Dong Huang
Yong-Hong Gu
Qin Liao
Xue-Bin Yan
Shai-Hong Zhu
Chang-Qing Gao
Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
The Scientific World Journal
title Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
title_full Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
title_fullStr Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
title_full_unstemmed Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
title_short Effects of Linear-Polarized Near-Infrared Light Irradiation on Chronic Pain
title_sort effects of linear polarized near infrared light irradiation on chronic pain
url http://dx.doi.org/10.1100/2012/567496
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