Use of a wrist activity monitor for the measurement of nocturnal scratching in patients with atopic dermatitis
| Autor: | Toshiya Ebata, S. Iwasaki, Ryoichi Kamide, Michihito Niimura |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Movement Dermatology Nocturnal Wrist Audiology Severity of Illness Index Dermatitis Atopic Severity of illness medicine Humans Circadian rhythm Monitoring Physiologic business.industry Pruritus Videotape Recording Signal Processing Computer-Assisted Atopic dermatitis Scratching medicine.disease Circadian Rhythm Activity monitor medicine.anatomical_structure Personal computer Female Sleep business |
| Zdroj: | British Journal of Dermatology. 144:305-309 |
| ISSN: | 1365-2133 0007-0963 |
| DOI: | 10.1046/j.1365-2133.2001.04019.x |
| Popis: | Background The amount of nocturnal scratching can be an indirect correlate of itch in pruritic dermatoses. We have previously used an infrared video camera to measure nocturnal scratching in atopic dermatitis (AD). Although this is a reliable method of measuring nocturnal scratching, it is not suitable for routine monitoring in clinical use. Objectives To find a simplified way of monitoring itch. Methods We tried using a wrist activity monitor (ActiTrac®) for the measurement of nocturnal scratching in patients with AD. ActiTrac® is a wristwatch-shaped device that contains a piezoceramic sensor to measure and record limb movement over a pre-set time interval. The acceleration signal produced by motion of the hands is stored and downloaded into a personal computer. The average value of acceleration (AVA, 10−3 g min−1) was calculated and compared with total scratching time as a percentage of total recording time (TST%) measured with the use of an infrared video camera in 63 recordings of 21 patients with AD. For 261 recordings in 29 patients with AD, the AVA was measured and correlated with disease severity, and compared with the AVA of five non-itchy controls. Results There was a significant correlation between the AVA and TST% (r = 0·91, P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text