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KMID : 1225720230150050562
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Allergy, Asthma & Immunology Research : AAIR
2023 Volume.15 No. 5 p.562 ~ p.579
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Current Issues in the Management of IgG Subclass Deficiencies in Adults With Chronic Respiratory Diseases
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Jang Jae-Hyuk
Kim Joo-Hee
Park Hae-Sim
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Abstract
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Primary immunodeficiency diseases (PIDs) are uncommon in adults; however, immunoglobulin G subclass deficiency (IGGSCD) is often found in a subset of adult patients with chronic respiratory diseases. As quantitative laboratory tests are used to diagnose IGGSCD, the clinical significance of IGGSCD remains controversial. However, respiratory infection is a common presenting feature of IGGSCD, and respiratory complications are responsible for subsequent morbidities, such as severe asthma, bronchiectasis, chronic obstructive airway diseases, and mortality. This review summarizes the current epidemiological data for PIDs, focusing on IGGSCD in the adult population. In addition, the investigation, treatment, and management strategies are detailed, including distinct issues faced by patients with chronic airway disease and their physicians in the proper diagnosis and treatment of IGGSCD.
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KEYWORD
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Adult, asthma, primary immunodeficiency diseases, IgG, IgG deficiency, infection
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