Subclinical Hypothyroidism in Childhood Cancer Survivors
Yonsei Medical Journal
; : 915-922, 2016.
Article
em En
| WPRIM
| ID: wpr-63332
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: In childhood cancer survivors, the most common late effect is thyroid dysfunction, most notably subclinical hypothyroidism (SCH). Our study evaluated the risk factors for persistent SCH in survivors. MATERIALS AND METHODS: Survivors (n=423) were defined as patients who survived at least 2 years after cancer treatment completion. Thyroid function was assessed at this time and several years thereafter. Two groups of survivors with SCH were compared: those who regained normal thyroid function during the follow-up period (normalized group) and those who did not (persistent group). RESULTS: Overall, 104 of the 423 survivors had SCH. SCH was observed in 26% of brain or nasopharyngeal cancer survivors (11 of 43) and 21.6% of leukemia survivors (35 of 162). Sixty-two survivors regained normal thyroid function, 30 remained as persistent SCH, and 12 were lost to follow-up. The follow-up duration was 4.03 (2.15-5.78) years. Brain or nasopharyngeal cancer and Hodgkin disease were more common in the persistent group than in the normalized group (p=0.002). More patients in the persistent group received radiation (p=0.008). Radiation to the head region was higher in this group (2394±2469 cGy) than in the normalized group (894±1591 cGy; p=0.003). On multivariable analysis, lymphoma (p=0.011), brain or nasopharyngeal cancer (p=0.039), and head radiation dose ≥1800 cGy (p=0.039) were significant risk factors for persistent SCH. CONCLUSION: SCH was common in childhood cancer survivors. Brain or nasopharyngeal cancer, lymphoma, and head radiation ≥1800 cGy were significant risk factors for persistent SCH.
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WPRIM
Assunto principal:
Estudos Retrospectivos
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Fatores de Risco
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Fatores Etários
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Sobreviventes
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Hipotireoidismo
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Neoplasias
Tipo de estudo:
Etiology_studies
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Observational_studies
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Risk_factors_studies
Limite:
Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Yonsei Medical Journal
Ano de publicação:
2016
Tipo de documento:
Article