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How can poor circulation from arteriosclerosis affect wound repair?
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wound
Injuries that break skin can be painfully memorable.
An adequate blood supply is essential for normal wound healing because it delivers the necessary oxygen and nutrients to the site of injury. Arteriosclerosis impairs this process by thickening and hardening arterial walls, which narrows the lumen and restricts blood flow to the body's tissues.12
When circulation is compromised by arteriosclerosis, the healing process is delayed or hindered in several ways:
- Reduced Oxygenation: The restricted blood flow limits the oxygen supply required for the metabolic demands of tissue repair.21
- Impaired Cellular Activity: During the inflammatory and proliferative phases of healing, the body relies on the dilation of local blood vessels to increase blood supply, which brings in the cells and materials needed for reconstruction. Poor circulation prevents this necessary increase in blood flow, stalling the migration of fibroblasts and the formation of new [capillaries].1
- Increased Risk of Complications: In severe cases, insufficient blood flow to the extremities can lead to gangrene, a serious condition where tissue dies due to a lack of oxygen and nutrients.2
Ultimately, because the body cannot effectively deliver the resources required for the inflammatory, migratory, and proliferative phases of repair, wounds in patients with arteriosclerosis are significantly more difficult to heal.1