(Angioneurotic Edema; Hereditary Angioedema)
Angioedema is a common condition that involves swelling beneath the surface of the skin with or without redness. Angioedema can occur around the eyelids and lips, or on the face, hands, feet, or genitalia. Since this condition can cause swelling of the airways, it is important that you seek medical care if you think you have angioedema.
Angioedema is often associated with urticaria (hives). It can be caused by:
A risk factor is something that increases your chance of getting a disease or condition. The following risk factors increase your chance of developing angioedema. If you have any of these risk factors, tell your doctor:
If you experience any of these symptoms do not assume it is due to angioedema. These symptoms may be caused by other health conditions. If you experience any one of them, see your physician.
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests may include the following:
Talk with your doctor about the best treatment plan for you. Minor episodes of angioedema may need no treatment. However, it is important to make sure the swelling does not spread to the airway, which can be life-threatening. Treatment options include the following:
If you are diagnosed with angioedema, follow your doctor's instructions.
To help reduce your chances of developing this condition, avoid substances or triggers that have caused hives or angioedema in the past.
American College of Allergy, Asthma & Immunology
Asthma and Allergy Foundation of America
Canadian Dermatology Association
Canadian Society of Allergy and Clinical Immunology
Angioedema. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed . Updated August 27, 2012. Accessed November 5, 2012.
Beltrani VS. Angioedema: some "new" thoughts regarding idiopathic angioedema. In: Greaves MW, Kaplan AP, eds. Marcel Dekker. New York, NY; 2004: 421.
Lin RY, Cannon AG, Teitel AD. Pattern of hospitalizations for angioedema in New York between 1990 and 2003. Ann Allergy Asthma Immunol. 2005;95:159
Urticaria. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed . Updated September 19, 2012. Accessed November 5, 2012.
Last reviewed November 2012 by Purvee S. Shah, MD