Abstract

FERNANDEZ ROMERO, Diego S.; DI MARCO, Pamela  and  MALBRAN, Alejandro. Hereditary angioedema: Family history and clinical manifestations in 58 patients. Medicina (B. Aires) [online]. 2009, vol.69, n.6, pp.601-606. ISSN 0025-7680.

Hereditary angioedema (HAE) is a rare autosomal dominant disease, characterized by episodes of edema typically involving the skin, gastrointestinal tract and larynx. We here describe the epidemiologic and clinical characteristic of a series of 58 patients with diagnosis of HAE, 53 (91%) type I and 5 (9%) type II. The mean age at first symptom was 10.8 ± 9.5 years and the mean age at diagnosis was 25.8 ± 16.2 years old, with a diagnosis delay of 15.3 ± 14.3 years. The mean number of attacks in the previous 6 months was 7.4 ± 7.6 range 0 to 40. Fifty four (93%) had cutaneous attacks, 50 (86%) abdominal attacks, 24 (41%) laryngeal attacks and 24 (41%) combined cutaneous and abdominal attacks. Twenty seven (46.5%) patients never received preventive treatments and 17 (29%) received danazol in different doses for different periods of time. During the attacks, 15 (26%) patients were treated with C1 inhibitor at least once, 7 (12%) with fresh frozen plasma and 40 (69%) received only supportive treatment. Stress and trauma were identified as attacks triggers. Six (10%) patients were first mutation and 52 (90%) had HAE ancestors. We reconstructed 20 kindred, identifying 205 individuals at risk of inheriting the disease, 109 (53 %) of them had signs or laboratory diagnosis of HAE. The total number of identified HAE individuals was 145, 19 (13%) died with asphyxia. So, shortening of diagnosis delay and appropriate treatment of HAE are a challenge to be fulfilled.

Keywords : Hereditary angioedema; C1 inhibitor; Angioedema attacks.

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