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Definition
Gangrene is the death of tissue in part of the body.
Causes, incidence, and risk factors
Gangrene can occur when a body part loses its blood supply. This may happen from, for example, injury or infection. You have a higher risk for gangrene if you have:
Symptoms
The symptoms depend on the location and cause of the gangrene. If the affected area involves the skin or is close to the skin, the symptoms may include:
If the affected area is internal (such as gangrene of the gallbladder or gas gangrene), the symptoms may include:
Signs and tests
The doctor may diagnose gangrene from a physical examination. In addition, the following tests and procedures may be performed to diagnose gangrene:Treatment
Gangrene requires urgent evaluation and treatment. In general, dead tissue should be removed to allow healing and prevent further infection. Depending on the area affected, the condition of the patient, and the cause of the gangrene, treatment may include:
Expectations (prognosis)
The outlook depends on the body part affected, the extent of gangrene, its cause, and the condition of the patient. The patient may die if treatment is delayed, the affected area is extensive, or the patient has other significant medical conditions.
Complications
Complications depend on the body part affected, the extent of gangrene, its cause, and the condition of the patient. Complications may include:
Calling your health care provider
Call your doctor immediately if:
Prevention
Gangrene may be prevented if a harmful process is treated before the tissue damage is irreversible. Wounds should be treated properly and observed for signs of infection (such as spreading redness, swelling, or drainage) or failure to heal. Patients with diabetes or blood vessel disease should routinely examine their feet for any signs of injury, infection, or change in skin color and seek care as needed.
Update Date: 8/10/2004 Updated by: Updates to specific sections made by Jacqueline A. Hart, M.D., Senior Medical Editor, A.D.A.M., Inc. Previously reviewed by Grace Jeon, M.D., M.P.H., General Surgeon, Pasadena, CA. Review provided by VeriMed Healthcare Network (11-22-2003).
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Page last updated: 28 October 2004 |