Multi-frequency bioelectrical impedance analysis of skin rubor with two-electrode technique

Abstract Background Skin rubor, or reddish discoloration on skin, is a sign of irritation. Physiologically it involves temporary vasodilation and hyperaemia in tissue, and is diagnosed by the visible characteristics. Purpose Bioelectrical impedance analysis (BIA) was tested to estimate skin rubor. M...

Full description

Saved in:
Bibliographic Details
Published in:Journal of tissue viability 2008-11, Vol.17 (4), p.110-114
Main Authors: Uchiyama, Tomoka, Ishigame, Shoko, Niitsuma, Junko, Aikawa, Yoshihiro, Ohta, Yuji
Format: Article
Language:English
Subjects:
Adult
Advanced Basic Science
Bioelectrical impedance analysis
Critical Care
Diagnosis, Differential
Electric Impedance
Electrodes
Erythema - chemically induced
Erythema - diagnosis
Ethanol - adverse effects
Female
Frequency property
Humans
Inflammation
Microcomputers
Nursing Assessment - methods
Nursing Assessment - standards
Photography
Quantitative assessment
Signal Processing, Computer-Assisted - instrumentation
Skin - blood supply
Skin rubor
Vasodilation - drug effects
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Background Skin rubor, or reddish discoloration on skin, is a sign of irritation. Physiologically it involves temporary vasodilation and hyperaemia in tissue, and is diagnosed by the visible characteristics. Purpose Bioelectrical impedance analysis (BIA) was tested to estimate skin rubor. Methods Five healthy women (22–25 years) participated in the experiments. Four were ethanol patch test (EPT)-positive; one was negative. A skin rubor was developed on the subjects' left forearm by temporary vasodilatation, which was caused by a dermal inflammation reaction due to application of ethanol to the skin. BIA was then conducted for the skin rubor and the intact skin using a lock-in amplifier with a frequency range of 0.1 Hz–10 kHz. The impedance changes due to vasodilatation of capillary were evaluated. Results The resistance of the skin rubor was found to decrease to almost 90% of the resistance and 87% of the reactance of the intact skin in the EPT-positive subjects. There was no impedance change in the EPT-negative subject. Through these experiments, skin rubor could be distinguished from intact skin based on the electrical impedance. Conclusion Skin rubor could be identified based on the bioelectrical impedance. This method would be used for various skin diagnoses due to simplicity and reliability of BIA.
ISSN:0965-206X
DOI:10.1016/j.jtv.2008.01.002