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Immunological Evaluation of Pediatric Patients with Polyautoimmunity.
Endocrine, Metabolic & Immune Disorders Drug Targets 2023 September 13
BACKGROUND: Autoimmunity can be the first or predominant manifestation in patients with primary immunodeficiency disorder, also referred to as inborn errors of immunity (IEI). This study aims to evaluate the immune status of pediatric patients with polyautoimmunity to identify those with underlying immune defects.
METHODS: In this cross-sectional study, pediatric patients with polyautoimmunity including at least one confirmed autoimmune endocrine disease were enrolled. Demographic and clinical data were collected using a questionnaire based on medical records and direct family interviews. For each patient, a basic immunologic evaluation was performed. The clinical diagnosis was established according to the criteria of the European Society for Immunodeficiencies (ESID). Based on the presence or absence of a history of severe and/or recurrent infections, patients were divided into two groups for comparison.
RESULTS: Thirty-nine patients, 18 males (46.2%) and 21 females (53.8%), were included. Fourteen patients (35.9%) had consanguineous parents. Fifteen patients (38.5%) had a history of severe and/or recurrent infections. The median (interquartile range: IQR) age of our patients at the time of evaluation was 11.1 (9-16) years. The median (IQR) age at the onset of infections and autoimmunities were 3 (1-10.8) and 5 (2.6-8) years, respectively. The most common infectious complications reported were pneumonia and candidiasis, each in 12.8% of the patients. The most prevalent autoimmune disorders were type 1 diabetes (74.3%) and autoimmune thyroiditis (58.9%). IEI was diagnosed in six patients (15.38%), five of which were from the group with severe or recurrent infections: three with selective IgA deficiency, two with common variable immunodeficiency (CVID), and one with immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX), but without a history of infections.
CONCLUSION: The occurrence of early onset polyautoimmunity in association with severe and/or recurrent infections or in patients with a positive family history should be a warning sign for physicians to initiate an evaluation for possible immunodeficiency disorders to prevent complications through early treatment.
METHODS: In this cross-sectional study, pediatric patients with polyautoimmunity including at least one confirmed autoimmune endocrine disease were enrolled. Demographic and clinical data were collected using a questionnaire based on medical records and direct family interviews. For each patient, a basic immunologic evaluation was performed. The clinical diagnosis was established according to the criteria of the European Society for Immunodeficiencies (ESID). Based on the presence or absence of a history of severe and/or recurrent infections, patients were divided into two groups for comparison.
RESULTS: Thirty-nine patients, 18 males (46.2%) and 21 females (53.8%), were included. Fourteen patients (35.9%) had consanguineous parents. Fifteen patients (38.5%) had a history of severe and/or recurrent infections. The median (interquartile range: IQR) age of our patients at the time of evaluation was 11.1 (9-16) years. The median (IQR) age at the onset of infections and autoimmunities were 3 (1-10.8) and 5 (2.6-8) years, respectively. The most common infectious complications reported were pneumonia and candidiasis, each in 12.8% of the patients. The most prevalent autoimmune disorders were type 1 diabetes (74.3%) and autoimmune thyroiditis (58.9%). IEI was diagnosed in six patients (15.38%), five of which were from the group with severe or recurrent infections: three with selective IgA deficiency, two with common variable immunodeficiency (CVID), and one with immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX), but without a history of infections.
CONCLUSION: The occurrence of early onset polyautoimmunity in association with severe and/or recurrent infections or in patients with a positive family history should be a warning sign for physicians to initiate an evaluation for possible immunodeficiency disorders to prevent complications through early treatment.
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