Cervera Alvaro, Veciana Misericordia, Valls-Solé Josep
Unitat d'EMG, Servei de Neurologia, Hospital Cli;nic, Facultad de Medicina, Universitat de Barcelona, Institut d'Investigació Biomédica August Pi i Sunyer, Villarroel, 170, Barcelona, 08036, Spain.
Neurosci Lett. 2002 Dec 13;334(2):115-8. doi: 10.1016/s0304-3940(02)01117-5.
Laser stimuli (LS) were used to induce sudomotor skin responses (SSRs) in ten healthy human subjects. LS were applied to the dorsum of the hand by means of a CO(2) laser stimulator at an intensity of 120% pain perception threshold. SSRs induced by LS were of longer latency than those induced by electrical stimuli. However, response amplitude and duration were similar with either stimuli. The possibility to activate the sudomotor system by means of stimulation of pain afferents might be of clinical applicability for the functional assessment of pain pathways.
对10名健康受试者使用激光刺激（LS）来诱发皮肤交感反应（SSR）。通过二氧化碳激光刺激器将LS以120%疼痛感知阈值的强度施加于手背。与电刺激诱发的SSR相比，LS诱发的SSR潜伏期更长。然而，两种刺激诱发的反应幅度和持续时间相似。通过刺激痛觉传入纤维来激活皮肤交感神经系统的可能性可能在疼痛通路的功能评估中具有临床应用价值。
