Evaluation of Endocrine Late Complications in Childhood Acute Lymphoblastic Leukemia Survivors: A Report of a Single-Center Experience and Review of the Literature
Journal Title: Turkish Journal of Hematology - Year 2017, Vol 34, Issue 1
Abstract
Objective: Improvement in long-term survival in patients with acute lymphoblastic leukemia (ALL) in childhood has led to the need for monitorization of treatment-related morbidity and mortality. In the current study, we aimed to evaluate endocrine side effects of treatment in ALL survivors who were in remission for at least 2 years. Materials and Methods: Sixty patients diagnosed with ALL, who were in remission for at least 2 years, were cross-sectionally evaluated for long-term endocrine complications. Results: The median age of the patients at the time of diagnosis, at the time of chemotherapy completion, and at the time of the study was 5 years (minimum-maximum: 1.7-13), 8 years (minimummaximum: 4.25-16), and 11.7 years (minimum-maximum: 7-22), respectively, and median follow-up time was 4 years (minimummaximum: 2-10.1). At least one complication was observed in 81.6% of patients. Vitamin D insufficiency/deficiency (46.6%), overweight/ obesity (33.3%), and dyslipidemia (23.3%) were the three most frequent endocrine complications. Other complications seen in our patients were hyperparathyroidism secondary to vitamin D deficiency (15%), insulin resistance (11.7%), hypertension (8.3%), short stature (6.7%), thyroid function abnormality (5%), precocious puberty (3.3%), and decreased bone mineral density (1.7%). There were no statistically significant correlations between endocrine complications and age, sex, and radiotherapy, except vitamin D insufficiency/deficiency, which was significantly more frequent in pubertal ALL survivors compared to prepubertal ALL survivors (57.5% and 25%, respectively, p=0.011). Conclusion: A high frequency of endocrine complications was observed in the current study. The high frequency of late effects necessitates long-term surveillance of this population to better understand the incidence of late-occurring events and the defining of high-risk features that can facilitate developing intervention strategies for early detection and prevention.
Authors and Affiliations
Cengiz Bayram, Neşe Yaralı, Ali Fettah, Fatma Demirel, Betül Tavil, Abdurrahman Kara, Bahattin Tunç
Keywords
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