Ozawa Maki, Tsuchiyama Kenichiro, Gomi Rumiko, Kurosaki Fumio, Kawamoto Yuji, Aiba Setsuya
Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
J Am Acad Dermatol. 2006 Dec;55(6):996-1002. doi: 10.1016/j.jaad.2006.08.032. Epub 2006 Oct 6.
Electrically evoked itch has been reported, although the electrodes, the frequency, and the pulse duration used were not standardized.
To examine whether a neuroselective transcutaneous electrical stimulator (NTES; Neurometer; Neurotron, Inc, Baltimore, Md) can evoke itch and whether it can provoke itch on any body area.
Twelve healthy subjects were stimulated on 30 body sites by 5 Hz alternating current produced by the NTES. We classified the evoked perceptions into two sensations (with and without itch) and divided the examined sites into 7 groups: G1, head and neck; G2, arm; G3, palm; G4, the dorsal surface of the hand; G5, knee and leg; G6, dorsal foot; and G7, ankle. The data were then statistically analyzed.
The NTES preferentially evoked itch at the G4 and G7 sites, and a sensation without itch at the G1 site.
Tests were performed on limited body areas.
The NTES can provoke itch, it was discovered that there are body area-specific differences in itch sensation.
尽管所使用的电极、频率和脉冲持续时间未标准化，但已有电诱发瘙痒的报道。
研究神经选择性经皮电刺激器（NTES；Neurometer；Neurotron公司，马里兰州巴尔的摩）是否能诱发瘙痒，以及是否能在身体任何部位引发瘙痒。
通过NTES产生的5Hz交流电对12名健康受试者的30个身体部位进行刺激。我们将诱发的感觉分为两种（有瘙痒和无瘙痒），并将检查部位分为7组：G1，头颈部；G2，手臂；G3，手掌；G4，手背；G5，膝盖和腿部；G6，足背；G7，脚踝。然后对数据进行统计分析。
NTES优先在G4和G7部位诱发瘙痒，在G1部位诱发无瘙痒的感觉。
在有限的身体部位进行了测试。
发现NTES可引发瘙痒，且瘙痒感觉存在身体部位特异性差异。
