Background: Survival rates among childhood cancer survivors (CCS) have enormously increased in the last 40 years. However, this improvement has been achieved at the expense of serious late effects that frequently involve the endocrine system. Aim: To evaluate the cumulative incidence of endocrine diseases in a cohort of long-term CCS. Materials and methods: We analyzed the clinical data of 310 adults, followed for a median time of 16.0 years after the first cancer diagnosis. The monitoring protocols applied to each patient were personalized on the basis of cancer diagnosis and previous treatments, according to the Children's Oncology Group guidelines. Results: The cumulative incidence of endocrine late effects steadily increased over time. At the last follow-up visit available, 48.46% of females and 62.78% of males were affected by at least one endocrine disease. The most common disorders were gonadal dysfunction, primary hypothyroidism, and GH deficiency (GHD). The main risk factors for endocrine disease were male sex (hazard ratio (HR)Z1.45, 95% confidence interval (95% CI) 1.05-1.99), radiotherapy (HRZ1.91, 95% CI 1.28-2.84), hematopoietic stem cells transplantation (HRZ3.11, 95% CI 2.23-4.34), and older age at cancer diagnosis (HRZ1.89, 95% CI 1.25-2.85). Male sex was associated with a higher risk of gonadal disorders, whereas radiotherapy specifically increased the risk of GHD and thyroid dysfunction. Conclusions: Endocrine disorders among CCS have a high prevalence and increase over time. Thus, endocrinologists need to cope with an increasing demand for health care in a field that is still little developed and that, in perspective, could also be extended to some selected types of adult cancer survivors.
We evaluated bone mineral density (BMD) and bone turnover in 22 homozygous prepubertal beta-thalassemic patients treated with desferrioxamine. Ten patients underwent treatment with desferrioxamine for the whole study period, while 12 patients stopped desferrioxamine and were then treated with deferiprone (L1). Lumbar and femoral BMD and bone metabolism markers were examined at baseline and after 1 and 3 years of follow up. All patients were prepubertal at baseline and they all became pubertal over the 3 years of follow up. At baseline, the mean lumbar Z score value was -2.048 SD +/- 0.75; the Z score was less than -2 SD in 13 children, within -1 and -2 SD in 6, and within 0 and -1 SD in only 3 subjects. A significant BMD increase (P < 0.0001) was observed at both the lumbar (+8.466%/year) and the femoral level (average of +3.46%/year at neck and +5.83%/year at the intertrochanteric region) after 3 years, without any significant difference being shown between patients treated with desferrioxamine and those treated with L1. The mean Z score SD values increased to -1.957 +/- 0.975 at 1 year (not significantly different from baseline) and to -1.864 +/- 1.221 at 3 year follow up (P < 0.05 vs baseline); an increase in bone turnover was also observed. These findings show that low BMD, a hallmark of beta-thalassemia, improves significantly when puberty begins; this increase involves different skeletal sites, regardless of pharmacological treatment with different iron-chelating drugs.
We report on a 13 1/2-year-old patient with Kabuki make-up syndrome and complete idiopathic precocious puberty manifested at 7 1/2 years. In addition to the other specific clinical signs, she showed hypodontia and lower lip pits, as typically seen in the Van der Woude syndrome. The significance of lower lip pits in the Kabuki make-up syndrome is discussed.
When administered at the end of age 6 months, hormonal treatment can be considered an effective and timely substitution for gonadotropin and testosterone insufficiency in cryptorchid infants. Therefore, we recommend this therapeutic procedure combined with surgery in the first year of life.
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