How are pressure injuries (pressure ulcers) defined?

Updated: Mar 26, 2020
  • Author: Christian N Kirman, MD; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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Currently, the NPUAP defines a pressure injury as localized damage to the skin and underlying soft tissue, usually over a bony prominence or related to a medical or other device. [1] Such injury can present either as intact skin or an open ulcer and may be painful. It results from intense or prolonged pressure or pressure combined with shear. The NPUAP also notes that the tolerance of soft tissue for pressure and shear may be affected by microclimate, nutrition, perfusion, comorbid conditions, and the condition of the soft tissue.

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