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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/23684
Title: Assessment of dermographism at different anatomical regions by dermographometer
Authors: Vilaval Termklinchan
Kanokvalai Kulthanan
Sumanas Bunyaratavej
Vajira Hospital
Department of Dermatology
Mahidol University
Keywords: Medicine
Issue Date: 27-Jul-2006
Citation: Journal of the Medical Association of Thailand. Vol.89, No.7 (2006), 992-996
Abstract: Objective: Classic dermographism refers to the ability of the skin to produce a linear wheal with a scratch pressure of 4,900 gm/cm 2. The authors manufactured a dermographometer to have precise and consistent measurement and tested it on different body regions to find the best location. Material and Method: Twenty two patients with dermographism were enrolled. The pressure was applied to the volar aspect of the left forearm using the dermographometer and to the right forearm by the pen head. Then the pressure was applied to the upper back, abdomen, and shin using the dermographometer. The time onset and size of wheal, erythema and flare were recorded. Result: The positive yield at the left forearm by the dermographometer was 72.7% and the positive yield at the right forearm by the pen head was 68.2%. The positive yield of back, abdomen and shin were 68.2%, 68.2% and 13.6%, respectively. Conclusion: The dermographometer gave a comparable positive yield in diagnosing dermographism with the pen head and the dermographometer. The volar forearm, back and abdomen are the sensitive areas to produce dermographism while the shin is the least sensitive area. The site of the body that is most appropriate in testing is the forearm as it is easy to approach.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33746211261&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/23684
ISSN: 01252208
01252208
Appears in Collections:Scopus 2006-2010

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