Angio-oedema in dentistry: management of two cases using C1 esterase inhibitor.

UNLABELLED: Angio-oedema is a rare condition; it may be a hereditary or acquired form. It results from biochemical defects which cause excessive activation of the complement cascade and result in deep swellings in the skin and alimentary tract, called angio-oedema. These swellings are painful rather than itchy and not associated with urticaria, which helps to differentiate angio-oedema from allergic reactions. Even mild trauma can give rise to swelling, which may be life-threatening in the oral region. Management of two cases, one hereditary and the other acquired angio-oedema, are reported to demonstrate the use of C1 esterase inhibitor prophylaxis. CLINICAL RELEVANCE: It is important that patients giving a history of angio-oedema are thoroughly investigated and, in discussion with the patient's medical team, appropriate prophylactic measures are taken to prevent swelling.