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Browsing by BUU Author "Akacı, Okan"

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    Thyroid functions in long-term survivors of pediatric Hodgkin's lymphoma treated with chemotherapy and radiotherapy
    (Galenos Yayıncılık, 2011-06) Demirkaya, Metin; Sevinir, Betül Berrin; Sağlam, Halil; Özkan, Lütfi; Akacı, Okan; Uludağ Üniversitesi/Tıp Fakültesi/Pediatri Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Radyasyon Onkolojisi Anabilim Dalı.; 0000-0003-0710-5422; 0000-0002-2148-1160; AAH-1570-2021; C-7392-2019; 24331130000; 6603199915; 35612700100; 55915679400; 36131105700
    Objective: Post-treatment endocrine disturbances are common in cancer patients who have received radiotherapy or chemotherapy. The objective of this study was to evaluate the thyroid functions of long-term survivors of pediatric Hodgkin's lymphoma treated with chemotherapy and radiotherapy. Methods: Thyroid functions of 55 Hodgkin's lymphoma patients (M/F:2.05/1) in complete remission were evaluated retrospectively. Results: The mean age of the patients at diagnosis was 10.35 +/- 4.09 (range: 2.83-17) years and the mean follow-up period was 5.54 +/- 3.68 (range: 0.92-13.92) years. All patients received chemotherapy; a total of 50 patients (90.9%) underwent radiotherapy, 42 (76.4%) of whom received neck/mantle radiotherapy. Thyroid function tests were abnormal in 14 (24.5%) patients and normal - in the remaining 41 (74.5%). A diagnosis of subclinical and overt hypothyroidism was made in 11 (78.6%) and 3 (21.4%) patients with abnormal thyroid function tests, respectively. Nearly one-fourth (21.4%) of all thyroid function disorders were detected in the first year of follow-up. A statistically significant correlation was found between the dose of mantle radiotherapy and thyroid function disorder (p=0.002). In addition, statistically significant correlations were established between thyroid examination or thyroid ultrasonography findings and thyroid functions (p <0.001 or p=0.006, respectively). Conclusions: Radiation-induced thyroid disorders may develop in pediatric Hodgkin's lymphoma patients in complete remission starting as early as the first year after treatment and are dose-dependent. Patients, particularly those who have been exposed to radiotherapy of the neck, must be followed up closely for occurrence of thyroid dysfunctions.