Introduction:

Hereditary angioedema is an autosomal dominant genetic disease, associated with increased levels of bradykinin. It is classified into 3 types according to the C1-INH enzyme. The diagnosis is clinical and laboratory. Its treatment is divided into short- and long-term and crisis prophylaxis.

Case report:

40-year-old female patient who came to the emergency service for labial edema without resolution with corticosteroids. The tests for IgE, C4 and C1 esterase inhibitors had a low result. She currently uses danazol prophylactically and fresh frozen plasma in crises.

Conclusion:

Since it is a disease that considerably affects the quality of life, hereditary angioedema must be diagnosed and an effective treatment plan made to prevent or reduce its complications.

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