Abstract:
BACKGROUND:Registration of trigger factors, prodromal symptoms, swelling localization, therapeutic behavior and gender-specific differences of the largest cohort of patients with hereditary angioedema due to C1-Inhibitor deficiency (C1-INH-HAE) in Switzerland. METHODS:Questionnaire survey within a cohort study: Consenting eligible patients with diagnosed HAE according to clinical history, physical examination and laboratory results, including plasma values for C1-INH and C4 were selected. To each participant we sent a questionnaire assessing patients' birthday, sex, date of first symptoms and diagnosis, trigger factors, prodromal symptoms, frequency and localization of angioedema, medication use and co-morbidities. Clinical information was collected in each center and then transmitted to the cohort database. Frequencies and distributions were summarized. Associations between gender and trigger factors or prodromal symptoms or localization of angioedema were assessed in multivariate analyses correcting for patients' age. RESULTS:Of 135 patients, data from 104 patients (77%) were available for analysis. Fifty- four percent were female, mean age at diagnosis was 19.5 years (SD 14.1), Mean age when completing the questionnaire was 44.0 (SD 19.8). More women than men were symptomatic (44/57 vs. 36/47; p = 0.005). This association remained when correcting for age at diagnosis (16.10. 95%CI (5.17 to 26.70); p = 0.004). Swelling episodes ranged between 1 and 136 episodes/year. Swelling was more common among female than among male (-13.15 (95% CI; -23.10 to -3.22), p = 0.010). Age at diagnosis was inversely associated with the total number of attacks 0.50 (-0.88 to -.011); p = 0.012). One third of patients were on danazol prophylaxis. CONCLUSION:We found large differences of HAE in male and female both in terms of symptom number and swelling episodes. Women are more affected by intensity and frequency of angioedema episodes than men. Danazol treatment remains widely used as effective prophylaxis despite its side effects. New therapies which selectively influence the hormonal estrogen balance could open new therapeutic options mainly for women and maybe also for men.
journal_name
Orphanet J Rare Disjournal_title
Orphanet journal of rare diseasesauthors
Steiner UC,Weber-Chrysochoou C,Helbling A,Scherer K,Grendelmeier PS,Wuillemin WAdoi
10.1186/s13023-016-0423-1subject
Has Abstractpub_date
2016-04-21 00:00:00pages
43issn
1750-1172pii
10.1186/s13023-016-0423-1journal_volume
11pub_type
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journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
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journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
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journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
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journal_title:Orphanet journal of rare diseases
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journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,meta分析
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journal_title:Orphanet journal of rare diseases
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