[Endocrine sequelae after radiotherapy in childhood and adolescence]. / Seqüelas endócrinas da radioterapia no tratamento do câncer na infância e adolescência.
Arq Bras Endocrinol Metabol
; 49(5): 825-32, 2005 Oct.
Article
en Pt
| MEDLINE
| ID: mdl-16444367
ABSTRACT
Radiotherapy may result in endocrine abnormalities, osteoporosis, obesity and neurological sequelae in patients treated for cancer. In the hypothalamo-pituitary area, GH deficiency is the most frequent complication. The frequency, delay of appearance and severity of GH deficiency depend most on the dose delivered during cranial irradiation but variables as age at treatment and fractionation schedule may play an important role as well. Other hypothalamo-pituitary dysfunctions are also dose-dependent. Low dose cranial irradiation may induce precocious or early puberty, while high doses are related to gonadotropin deficiency. Endocrine complications due to extracranial irradiation such as gonadal or thyroid abnormalities are described. In spite of normal GH secretion, linear growth may be impaired by bone lesions secondary to craniospinal or total body irradiation. Results on final height have been optimized by better indicators of GH therapy associated with adequate treatment of early or precocious puberty. The purpose of this review is to explore the late endocrine sequelae of radiotherapy.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Hormona del Crecimiento
/
Enfermedades del Sistema Endocrino
/
Trastornos del Crecimiento
/
Sistema Hipotálamo-Hipofisario
/
Neoplasias
Límite:
Adolescent
/
Child
/
Humans
Idioma:
Pt
Revista:
Arq Bras Endocrinol Metabol
Año:
2005
Tipo del documento:
Article
País de afiliación:
Bosnia-Herzegovina