RESUMEN
OBJECTIVES: HbS/ß+ patients' presence in Italy increased due to immigration; these patients are clinically heterogeneous, and specific guidelines are lacking. Our aim is to describe a cohort of HbS/ß+ patients, with genotype-phenotype correlation, in order to offer guidance for clinical management of such patients. METHODS: Retrospective cohort study of HbS/ß+ patients among 15 AIEOP Centres. RESULTS: A total of 41 molecularly confirmed S/ß+ patients were enrolled (1-55 years, median 10.9) and classified on ß+ mutation: IVS-I-110, IVS-I-6, promoter, and "others." Prediagnostic events included VOC 16/41 (39%), ACS 6/41 (14.6%), sepsis 3/41 (3.7%), and avascular necrosis 3/41 (7,3%). Postdiagnostic events were VOC 22/41 (53.6% %), sepsis 4/41 (9.7%), ACS 4/41 (9.7%), avascular necrosis 3/41 (7.3%), aplastic crisis 2/41 (4.8%), stroke 1/41 (2.4%), ACS 1/41 (2.4%), and skin ulcerations 1/41 (2.4%). The IVS-I-110 group presented the lowest median age at first SCD-related event (P = .02 vs promoter group) and the higher median number of severe events/year (0.26 events/patient/year) (P = .01 vs IVS-I-6 and promoter groups). Promoter group presented a specific skeletal phenotype. Treatment regimen applied was variable among the centers. CONCLUSIONS: HbS/ß+ is not always a mild disease. Patients with IVS-I-110 mutation could benefit from a standard of care like SS and S/ß° patients. Standardization of treatment is needed.
Asunto(s)
Anemia de Células Falciformes/diagnóstico , Anemia de Células Falciformes/genética , Genotipo , Hemoglobina Falciforme/genética , Fenotipo , Globinas beta/genética , Talasemia beta/diagnóstico , Talasemia beta/genética , Adolescente , Adulto , Alelos , Anemia de Células Falciformes/epidemiología , Niño , Preescolar , Femenino , Estudios de Asociación Genética , Humanos , Lactante , Italia/epidemiología , Masculino , Persona de Mediana Edad , Vigilancia en Salud Pública , Estudios Retrospectivos , Adulto Joven , Talasemia beta/epidemiologíaRESUMEN
Objective: The association between celiac disease (CD) and immune thrombocytopenia (ITP) is still uncertain. The aim of this study was to characterize the coexistence of these two diseases in Italian children. Materials and Methods: This is a retrospective multicenter study investigating the occurrence of CD in 28 children with ITP diagnosed from January 1, 2000, to December 31, 2019. Results: The first diagnosis was ITP in 57.1% and CD in 32.1% of patients. In 3 patients (10.7%), the two diagnoses were simultaneous. All the potential and silent cases of CD in our cohort were diagnosed in the groups of "ITP first" and "simultaneous diagnosis". In all children ITP was mild, and in 2 out of 8 not recovered from ITP at the time of CD diagnosis a normalization of platelet counts (>100,000/µL) occurred 3 and 5 months after starting a gluten-free diet, respectively. Conclusion: We think that screening for CD should be considered in children with ITP regardless of the presence of gastrointestinal symptoms. Furthermore, some patients may recover from ITP after starting a gluten-free diet.