c1-esterase-lnhibitor

Fleeting but often pronounced episodes of swelling, predominantly in the face, but also in the hands, feet, or respiratory tract: such symptoms are indicative of angioedema. This usually occurs in the context of an allergic reaction; much more rarely, it is caused by a congenital disorder. In this case, however, additional gastrointestinal complaints usually occur. … Hereditary Angioedema: Symptoms, Diagnosis, Treatment

Clinical suspicion is confirmed by measuring C1 esterase inhibitor activity or C1 esterase inhibitor antigen in blood plasma. There is currently no cure for patients suffering from HAE attacks. Also, no therapy exists to date to completely prevent the attacks. Nevertheless, the symptoms can be relieved and the progression of the edema can be prevented. … Hereditary Angioedema: Diagnosis and Therapy