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Debridement is the process of removing dead (necrotic) tissue or foreign material from and around a wound to expose healthy tissue.
An open wound or ulcer can not be properly evaluated until the dead tissue or foreign matter is removed. Wounds that contain necrotic and ischemic (low oxygen content) tissue take longer to close and heal. This is because necrotic tissue provides an ideal growth medium for bacteria, especially for Bacteroides spp. and Clostridium perfringens that causes the gas gangrene so feared in military medical practice. Though a wound may not necessarily be infected, the bacteria can cause inflammation and strain the body's ability to fight infection. Debridement is also used to treat pockets of pus called abscesses. Abscesses can develop into a general infection that may invade the bloodstream (sepsis) and lead to amputation and even death. Burned tissue or tissue exposed to corrosive substances tends to form a hard black crust, called an eschar, while deeper tissue remains moist and white, yellow and soft, or flimsy and inflamed. Eschars may also require debridement to promote healing.
Encyclopedia of Surgery: A Guide for Patients and Caregivers
Type: Reference Material
Author/Contact: Not available
Institution: Encyclopedia of Surgery: A Guide for Patients and Caregivers
Submitted by: admin
Added: Sat Nov 04 2006