Low-power laser therapy for carpal tunnel syndrome: effective optical power.
Low-power laser therapy for carpal tunnel syndrome: effective optical power.
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DOI：
10.4103/1673-5374.187063
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发表时间：
2016-07
影响因子：
6.1
通讯作者：
Xu WD
中科院分区：
文献类型：
--
作者：
Chen Y;Zhao CQ;Ye G;Liu CD;Xu WD
低功率激光治疗已被用于轻、中度腕管综合征的非手术治疗，尽管其疗效一直存在争议。低功率激光治疗中的激光参数与激光对人体组织的作用密切相关。要评估低功率激光治疗的疗效，必须准确测量和控制激光参数，这在以往的临床试验中被忽视了。在这里，我们报告了低功率激光治疗腕管综合征的有效光功率的测量。通过监测人体皮肤在手腕处的背面反射和散射激光功率，可以推断出有效的激光功率。通过对30例患者的临床测量，发现不同病例的有效激光功率差异显著，测得的激光反射系数在1.8%~54%之间。36.7%的病例反射系数在10-20%之间，16.7%的病例反射系数大于40%。因此，监测激光照射过程中的有效光功率对于腕管综合征的激光治疗是必要的。
Low-power laser therapy has been used for the non-surgical treatment of mild to moderate carpal tunnel syndrome, although its efficacy has been a long-standing controversy. The laser parameters in low-power laser therapy are closely related to the laser effect on human tissue. To evaluate the efficacy of low-power laser therapy, laser parameters should be accurately measured and controlled, which has been ignored in previous clinical trials. Here, we report the measurement of the effective optical power of low-power laser therapy for carpal tunnel syndrome. By monitoring the backside reflection and scattering laser power from human skin at the wrist, the effective laser power can be inferred. Using clinical measurements from 30 cases, we found that the effective laser power differed significantly among cases, with the measured laser reflection coefficient ranging from 1.8% to 54%. The reflection coefficient for 36.7% of these 30 cases was in the range of 10–20%, but for 16.7% of cases, it was higher than 40%. Consequently, monitoring the effective optical power during laser irradiation is necessary for the laser therapy of carpal tunnel syndrome.