Ide Yasuo
Department of Anesthesia, Toho University Sakura Medical Center Sakura 285-8741.
Masui. 2009 Nov;58(11):1401-6.
Three types of machines are used in the field of phototherapy for chronic pain. One type is an instrument for low reactive level laser therapy (LLLT), one is an instrument for linear polarized infrared light irradiation (SUPER LIZER), and the last one is an instrument for Xenon light irradiation (beta EXCEL Xe10). The available machines for LLLT all project laser by semiconductor. The newest machine (MEDILASER SOFT PULSE10) has peak power of 10 W and mean power of 1 W. This machine is as safe as 1 W machine and is effective twice as deep as the 1 W machine. The irradiation by low reactive level laser induces hyperpolarization, decreased resistance of neuronal membrane, and increased intra-cellular ATP concentrations. The effects of low reactive level laser might be induced by the activation of ATP-dependent K channel. The significant analgesic effects of 1 W and 10 W LLLT were reported with double blind test. The significant analgesic effects of linear polarized near infrared light irradiation with double blind test were also reported. The effects of low reactive level laser upon the sympathetic nerve system were thought to result from its normalization of the overloaded sympathetic nerve system.
三种类型的机器用于慢性疼痛的光疗领域。一种类型是低反应水平激光疗法（LLLT）仪器，一种是线性偏振红外光照射仪器（超级理疗仪），最后一种是氙光照射仪器（β EXCEL Xe10）。现有的LLLT机器均通过半导体发射激光。最新的机器（MEDILASER SOFT PULSE10）峰值功率为10瓦，平均功率为1瓦。这台机器与1瓦的机器一样安全，其有效照射深度是1瓦机器的两倍。低反应水平激光照射会引起超极化、神经元膜电阻降低以及细胞内ATP浓度增加。低反应水平激光的作用可能是由ATP依赖性钾通道的激活所诱导。通过双盲试验报告了1瓦和10瓦LLLT具有显著的镇痛效果。双盲试验也报告了线性偏振近红外光照射具有显著的镇痛效果。低反应水平激光对交感神经系统的作用被认为是由于其使过载的交感神经系统恢复正常所致。
