Journals / JAREM / 2017 / Cilt: 7 - Sayı: 2

Prevalence and Clinical Manifestations of Hereditary Angioedema in Untested Close and Distant Blood Relatives of Hereditary Angioedema Index Patients in a City, Turkey

Türkiye'de Bir Şehirde İndeks Herediter Anjioödem Hastalarının Uzak ve Yakın Test Edilmemiş Akrabalarında Herediter Anjioödem Prevalans ve Klinik Belirtileri

Journal
JAREM
Pages
51–57
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Methods: Overall, 4 index patients with HAE and 60/118 blood relatives enrolled in the study.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Hereditary angioedema (HAE) is a rare autosomal-dominant disease characterized by recurring attacks of nonpruritic, nonpitting edema caused by an inherited deficiency or dysfunction in the C1 esterase inhibitor (C1 INH).
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Key Findings & Data:Symptoms present years before an accurate diagnosis is made.
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Conclusion & Impact:Methods: Overall, 4 index patients with HAE and 60/118 blood relatives enrolled in the study.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Hereditary angioedema (HAE) is a rare autosomal-dominant disease characterized by recurring attacks of nonpruritic, nonpitting edema caused by an inherited deficiency or dysfunction in the C1 esterase inhibitor (C1 INH). Symptoms present years before an accurate diagnosis is made. Our aim was to determine the prevalence and clinical manifestations of HAE in untested blood relatives of HAE index patients in a city, Turkey. Methods: Overall, 4 index patients with HAE and 60/118 blood relatives enrolled in the study. The mean age of the enrolled untested subjects (29 female+31 male) was 41 years. The enrolled subjects underwent complement testing (C4, C1 INH antigen, and functional C1 INH). If the laboratory tests were abnormal, the enrolled subjects were questioned on clinical manifestations and scheduled for a follow-up visit. Results: Except for 4 index cases, 60 relatives enrolled in the study underwent complement testing, and 36.6% of them were diagnosed Type 1 and 1.6% Type 2. HAE could not be ruled out in 6.6% of the subjects. In 55% of the untested blood relatives, the HAE disorder was ruled out. Of 23 (22; type 1+ 1; type 2) newly diagnosed subjects, 9 (39%) reported having experienced symptoms that may have been related to HAE, such as swelling in the face, genitourinary region, extremities or abdominal pain. The median age of 9 symptomatic patients was 42 years, whereas newly diagnosed asymptomatic subjects had a median chronological age of 17 years. Conclusions: This study's findings reinforce the importance of screening family members and relatives of index patients with HAE to detect this hereditary condition.

Özet

Amaç: Herediter Anjioödem (HAÖ), C1 esteraz inhibitör eksikliği veya fonksiyon bozukluğu nedeniyle tekrarlayan kaşıntısız ve basmakla çukurlaşmayan ödem atakları ile seyreden otozomal dominant nadir bir hastalıktır. Şikâyetler kesin teşhis konulmadan çok önce belirebilir. Bu çalışmada, amacımız Türkiye'nin bir ilçesinde indeks HAÖ hastalarının tanı konulmamış akrabalarında HAÖ sıklık ve klinik bulgularını araştırmaktı. Yöntemler: HAÖ tanısı almış 4 indeks hastanın 118 akrabasından altmışı (29 kız, 31 erkek) çalışmaya katıldı. Katılanların ortalama yaşları 41 (475) yaş idi. Kompleman testleri (C1 esteraz inhibitör antijen, C1 esteraz inhibitör fonksiyon ve C4 düzeyleri) çalışılmak üzere kan örnekleri alındı. Anormal sonucu olanlar klinik bulgular açısından sorgulandı ve takibe alındı. Bulgular: Dört indeks HAÖ vakası dışında çalışmaya katılan 60 kişiden alınan kan örneklerinde; olguların %36,6'sında Tip 1 HAÖ ve %1,6'sında ise Tip 2 HAÖ hastalığı saptandı. Olguların %6,6'sında ise, HAÖ hastalığı dışlanamadı. Daha önce test edilemeyen akrabaların %55'inde HAÖ hastalığı dışlandı. Yeni tanı konulan 23 (22; tip 1+1; tip 2) HAÖ hastasından 9'unda (%39) yüz, ekstremite ve karında HAÖ ile ilişkili şişlik semptomlarının olduğu öğrenildi. Semptomatik 9 yeni hastanın yaş ortalaması 42 yaş, asemptomatik yeni hastaların yaş ortalaması ise 17 yaş idi. Sonuç: Bu çalışma; indeks HAÖ hastalarının tanı konulmamış aile üyeleri ve akrabalarında hastalık taramasının önemini vurgulamaktadır.

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Cite This Article

ÖZDEMİR, Ö., ELMAS, B. (2017). Prevalence and Clinical Manifestations of Hereditary Angioedema in Untested Close and Distant Blood Relatives of Hereditary Angioedema Index Patients in a City, Turkey. JAREM, Cilt: 7 - Sayı: 2, 51–57. https://ajindex.com/articles/199218

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