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Proceedings Paper

Fiber optic LDF to monitor vascular dynamics of urticarial dermographism in pressure-tested patients before and after treatment with antihistamines
Author(s): Natalja Skrebova Eikje; Seiji Arase
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Paper Abstract

The local microcirculatory dynamics underlying phenomenon of urticarial dermographism (UD) are not yet sufficiently elucidated in dermatological patients. A fiber optic laser Doppler flowmeter (LDF) was used to monitor skin blood flow (SBF) changes on the back of the patients with UD before and after application of the series of pressure stimuli (9.8×104, 14.7×104, 19.6×104 and 24.5×104 Pa). All patients acted as self-controls to assess their disease activity by means of SBF values based on response to pressure stimuli before and after treatment with antihistamines, when compared to baseline SBF. Throughout 30 minutes evaluation inter-subject SBF values at pressure-tested sites were noticeably distinguished as high, moderate and low. By LDF we could differentiate the highest development of vascular dynamics after 5 minutes, coming back to normal within about 30 minutes in one group of patients, and the vascular dynamics reaching its maximum in 15 minutes, but with no fade after 30 minutes, in another group of patients. All treatment regimens in both groups of patients by LDF produced a measurable reduction already during 1-2 days of therapy, accompanied by a reduction in SBF baseline values in patients with severe and moderate symptoms of UD.

Paper Details

Date Published: 25 February 2008
PDF: 9 pages
Proc. SPIE 6842, Photonic Therapeutics and Diagnostics IV, 68420H (25 February 2008); doi: 10.1117/12.763013
Show Author Affiliations
Natalja Skrebova Eikje, Waseda Univ. (Japan)
Univ. of Tokushima School of Medicine (Japan)
Seiji Arase, Univ. of Tokushima School of Medicine (Japan)


Published in SPIE Proceedings Vol. 6842:
Photonic Therapeutics and Diagnostics IV
Kenton W. Gregory; Guillermo J. Tearney; Reza S. Malek; Nikiforos Kollias; Bernard Choi; Haishan Zeng; Brian Jet-Fei Wong; Justus F. R. Ilgner; Henry Hirschberg; Steen J. Madsen, Editor(s)

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