RESUMO
Background: Inborn errors of immunity (IEI) predispose patients to various infectious and non-infectious complications. Thanks to the development and expanding use of flow cytometry and increased awareness, the diagnostic rate of IEI has markedly increased in Algeria the last decade. Aim: This study aimed to describe a large cohort of Algerian patients with probable IEI and to determine their clinical characteristics and outcomes. Methods: We collected and analyzed retrospectively the demographic data, clinical manifestations, immunologic, genetic data, and outcome of Algerian IEI patients - diagnosed in the department of medical immunology of Beni Messous university hospital center, Algiers, from 2008 to 2021. Results: Eight hundred and seven patients with IEI (482 males and 325 females) were enrolled, 9.7% of whom were adults. Consanguinity was reported in 50.3% of the cases and a positive family history in 32.34%. The medium age at disease onset was 8 months and at diagnosis was 36 months. The median delay in diagnosis was 16 months. Combined immunodeficiencies were the most frequent (33.8%), followed by antibody deficiencies (24.5%) and well-defined syndromes with immunodeficiency (24%). Among 287 patients tested for genetic disorders, 129 patients carried pathogenic mutations; 102 having biallelic variants mostly in a homozygous state (autosomal recessive disorders). The highest mortality rate was observed in patients with combined immunodeficiency (70.1%), especially in patients with severe combined immunodeficiency (SCID), Omenn syndrome, or Major Histocompatibility Complex (MHC) class II deficiency. Conclusion: The spectrum of IEI in Algeria is similar to that seen in most countries of the Middle East and North Africa (MENA) region, notably regarding the frequency of autosomal recessive and/or combined immunodeficiencies.
Assuntos
Síndromes de Imunodeficiência , Doenças da Imunodeficiência Primária , Imunodeficiência Combinada Severa , Adulto , Argélia/epidemiologia , Criança , Feminino , Humanos , Síndromes de Imunodeficiência/genética , Masculino , Doenças da Imunodeficiência Primária/genética , Estudos RetrospectivosRESUMO
Introduction. Comme pour toutes les maladies rares ou maladies orphelines, l'étude des thrombopathies devrait être multicentrique pour recenser le maximum ou tous les patients dans une région ou dans le pays concerné. Notre étude a pour objectif d'évaluer la prévalence des thrombopathies constitutionnelles dans l'Ouest Algérien, et décrire ainsi les caractéristiques épidémiologiques de notre population. Patients et méthodes. Il s'agit d'une étude descriptive régionale du profil épidémiologique de 61 patients de l'Ouest Algérien présentant une thrombopathie constitutionnelle. Résultats. Dans notre étude a trouvé 34 thrombasthénies de Glanzmann (TG), 18thrombopathies de Jean Bernard Soulier (JBS), 08thrombopathies de May-Hegglin (MH) et un syndrome de Scott avec une prévalence globale de 1,8/1 million habitants. Conclusion. Notre travail nous a permis d'avoir un contexte global sur les thrombopathies constitutionnelles qui serait sans doute la base d'autres études de caractère clinique, biologique ou même moléculaire surtout en matière de recrutement de patients.
Introduction. As with all rare or orphan diseases, the study of inherited platelet disorders should be multicentric to identify as many or as few patients as possible in a given region or country. The aim of our study is to evaluate the prevalence of inherited platelet disorders in Western Algeria, and thus describe the epidemiological characteristics of our population. Patients and methods. This is a regional descriptive study of the epidemiological profile of 61 patients in Western Algeria with inherited platelet disorders. Results. In our study we found 34 Glanzmann thrombasthenias (TG), 18 Jean Bernard Soulier thrombopathies (JBS), 08 May-Hegglin thrombopathies (MH) and one Scott syndrome with an overall prevalence of 1.8/1 million inhabitants. Conclusion. Our work has allowed us to have a global context on inherited platelet disorders which would undoubtedly be the basis of other studies of clinical, biological or even molecular character especially in terms of patient recruitment.
