Ebata T, Aizawa H, Kamide R
Department of Dermatology, Jikei University School of Medicine, Tokyo, Japan.
J Dermatol. 1996 Mar;23(3):153-5. doi: 10.1111/j.1346-8138.1996.tb03990.x.
We used an infrared video camera and video tape recorder system to record and analyze nocturnal scratching in seven patients with atopic dermatitis (AD) and three non-itchy healthy controls. The patterns and the locations of scratching were successfully observed. Scratching bouts lasting more than 5 sec were counted, and the summation of the duration of all the scratching bouts (total scratching time, TST) was used as an index of nocturnal scratching. TST in patients with AD turned out to be some hundreds to ten thousands of seconds; the TST in controls was between zero and a hundred seconds. The infrared video camera system measured nocturnal scratching simply and reliably without disturbing the patients' sleep.
我们使用红外摄像机和录像机系统记录并分析了7名特应性皮炎（AD）患者和3名无瘙痒的健康对照者的夜间搔抓情况。成功观察到了搔抓的模式和部位。对持续超过5秒的搔抓发作进行计数，并将所有搔抓发作的持续时间总和（总搔抓时间，TST）用作夜间搔抓的指标。AD患者的TST为数百秒至数万秒；对照者的TST在零至一百秒之间。红外摄像系统能简单可靠地测量夜间搔抓情况，且不会干扰患者睡眠。
