Skin blood flow dynamics and its role in pressure ulcers

Fuyuan Liao, Stephanie Burns, Yih Kuen Jan

Research output: Contribution to journalArticle

Abstract

Pressure ulcers are a significant healthcare problem affecting the quality of life in wheelchair bounded or bed-ridden people and are a major cost to the healthcare system. Various assessment tools such as the Braden scale have been developed to quantify the risk level of pressure ulcers. These tools have provided an initial guideline on preventing pressure ulcers while additional assessments are needed to improve the outcomes of pressure ulcer prevention. Skin blood flow function that determines the ability of the skin in response to ischemic stress has been proposed to be a good indicator for identifying people at risk of pressure ulcers. Wavelet spectral and nonlinear complexity analyses have been performed to investigate the influences of the metabolic, neurogenic and myogenic activities on microvascular regulation in people with various pathological conditions. These findings have contributed to the understanding of the role of ischemia and viability on the development of pressure ulcers. The purpose of the present review is to provide an introduction of the basic concepts and approaches for the analysis of skin blood flow oscillations, and present an overview of the research results obtained so far. We hope this information may contribute to the development of better clinical guidelines for the prevention of pressure ulcers.

Original languageEnglish (US)
Pages (from-to)25-36
Number of pages12
JournalJournal of Tissue Viability
Volume22
Issue number2
DOIs
StatePublished - May 2013

Keywords

  • Complexity
  • Nonlinear analysis
  • Pressure ulcers
  • Skin blood flow Wavelet

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dermatology

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