Background: Inborn errors of immunity (IEI) are rare diseases, which makes diagnosis a challenge. A better description of the initial presenting manifestations should improve awareness and avoid diagnostic delay. Although increased infection susceptibility is a well-known initial IEI manifestation, less is known about the frequency of other presenting manifestations. Objective: We sought to analyze age-related initial presenting manifestations of IEI including different IEI disease cohorts. Methods: We analyzed data on 16,486 patients of the European Society for Immunodeficiencies Registry. Patients with autoinflammatory diseases were excluded because of the limited number registered. Results: Overall, 68% of patients initially presented with infections only, 9% with immune dysregulation only, and 9% with a combination of both. Syndromic features were the presenting feature in 12%, 4% had laboratory abnormalities only, 1.5% were diagnosed because of family history only, and 0.8% presented with malignancy. Two-third of patients with IEI presented before the age of 6 years, but a quarter of patients developed initial symptoms only as adults. Immune dysregulation was most frequently recognized as an initial IEI manifestation between age 6 and 25 years, with male predominance until age 10 years, shifting to female predominance after age 40 years. Infections were most prevalent as a first manifestation in patients presenting after age 30 years. Conclusions: An exclusive focus on infection-centered warning signs would have missed around 25% of patients with IEI who initially present with other manifestations.

Initial presenting manifestations in 16,486 patients with inborn errors of immunity include infections and noninfectious manifestations / Thalhammer, J., Kindle, G., Nieters, A., Rusch, S., Seppanen, M.R.J., Fischer, A., Grimbacher, B., Edgar, D., Buckland, M., Mahlaoui, N., Ehl, S., Boztug, K., Brunner, J., Demel, U.F., Forster-Waldl, E., Gasteiger, L.M., Goschl, L., Kojic, M., Schroll, A., Seidel, M.G., et al.. - In: JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. - ISSN 0091-6749. - STAMPA. - 23:1(2021), p. 8. [10.1016/j.jaci.2021.04.015]

Initial presenting manifestations in 16,486 patients with inborn errors of immunity include infections and noninfectious manifestations

Amodio D.
Membro del Collaboration Group
;
Danieli M. G.
Membro del Collaboration Group
;
Quinti I.
Membro del Collaboration Group
;
2021-01-01

Abstract

Background: Inborn errors of immunity (IEI) are rare diseases, which makes diagnosis a challenge. A better description of the initial presenting manifestations should improve awareness and avoid diagnostic delay. Although increased infection susceptibility is a well-known initial IEI manifestation, less is known about the frequency of other presenting manifestations. Objective: We sought to analyze age-related initial presenting manifestations of IEI including different IEI disease cohorts. Methods: We analyzed data on 16,486 patients of the European Society for Immunodeficiencies Registry. Patients with autoinflammatory diseases were excluded because of the limited number registered. Results: Overall, 68% of patients initially presented with infections only, 9% with immune dysregulation only, and 9% with a combination of both. Syndromic features were the presenting feature in 12%, 4% had laboratory abnormalities only, 1.5% were diagnosed because of family history only, and 0.8% presented with malignancy. Two-third of patients with IEI presented before the age of 6 years, but a quarter of patients developed initial symptoms only as adults. Immune dysregulation was most frequently recognized as an initial IEI manifestation between age 6 and 25 years, with male predominance until age 10 years, shifting to female predominance after age 40 years. Infections were most prevalent as a first manifestation in patients presenting after age 30 years. Conclusions: An exclusive focus on infection-centered warning signs would have missed around 25% of patients with IEI who initially present with other manifestations.
2021
autoimmune; immune dysregulation; inborn error of immunity; inflammatory; presenting symptom; Primary immunodeficiency; registry; syndromic; warning signs
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/290861
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