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Updated: May 30, 2026

Mouse Model of Pressure Ulcers After Spinal Cord Injury
Published on: March 9, 2019
Heel pressure ulcers: purple heel and deep tissue injury
Richard Salcido1, Augustine Lee, Chulhyun Ahn
1Department of Rehabilitation Medicine, Institute on Aging, University of Pennsylvania Health System, Philadelphia, USA.
Abstract:
The heel is a frequent site of pressure ulcer formation, in particular, the development of suspected deep tissue injury. This article reviews the epidemiology, pathophysiology and prevention of heel pressure ulcers. Also, the related concept of purple heel, a not-well-recognized entity, is introduced.
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Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above the...
