What is a primary cause of pressure injuries (PI)?

Pressure injuries (PIs), also known as pressure ulcers or bedsores, primarily occur due to sustained pressure on the skin, which can lead to ischemia. Ischemia refers to the inadequate blood supply to a tissue, and it is a critical factor in the development of pressure injuries. When there is prolonged pressure on an area, it can obstruct blood flow to that region, causing tissue hypoxia and leading to cell death. As the tissue becomes ischemic, it loses its structural integrity, making it more susceptible to injury.

This understanding highlights the importance of pressure relief for patients at risk, such as those with limited mobility. Regular repositioning and the use of pressure-relieving devices are essential strategies to prevent pressure injuries. Recognizing ischemia as a primary cause is crucial for effective assessment and intervention in wound care management.