Observational studyHormones (Athens, Greece)2024
Thyroid complications after hemopoietic stem cell transplantation in children and adolescents.
Observational study in Hormones (Athens, Greece), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the prevalence of thyroid dysfunction and its association with possible contributing factors related to diagnosis and treatment in children who received hematopoietic stem cell transplantation (HSCT) in the only national transplant unit in Greece.
methodsThis is an observational, retrospective, single center cohort study that included 194 patients (58.6% boys) who survived for at least 1 year following allogeneic HSCT. Conditioning regimens depended upon diagnosis and protocols active at the time of transplantation. Some patients received irradiation, either central nervous system prophylaxis (n = 20), or total body irradiation (TBI) (n = 8). Thyroid gland evaluation included thyroid-stimulating hormone, free thyroxine, thyroid autoantibodies, and sonogram. Univariate and multivariate logistic models were used to examine the association of the above-mentioned factors with hypothyroidism.
resultsThe mean age at diagnosis and at bone marrow transplant (BMT) in years was 7.51 ± 0.46 and 7.58 ± 0.36, respectively. The median follow-up time was 4.83 years. Hypothyroidism was detected in 33 cases (17.7%), four of those patients having received TBI. Factors contributing to hypothyroidism as per the multivariate analysis were male sex, [OR: 3.005, 95% CI (1.145-7.890)], irradiation, [OR: 2.876, 95% CI (1.120-7.386)], and years after HSCT [OR: 1.148, 95% CI (1.042-1.266)], while malignancy was identified only in the univariate analysis. The multivariate model presents a good class separation capacity [AUC = 72%, 95% CI (61.4%-82.4%)], Two patients had papillary thyroid cancer, both among children who had received TBI.
conclusionThese data highlight the fact that male sex and radiotherapy are two independent factors that lead to increased risk for hypothyroidism. Furthermore, the prevalence of hypothyroidism increases with time post HSCT.
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