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Radioiodine therapy in elderly patients with subclinical hyperthyroidism due to non-voluminous nodular goiter and its effect on bone metabolism / Terapia com radioiodo em pacientes idosos com hipertireoidismo subclínico por bócio nodular não volumoso e efeito sobre o metabolismo ósseo
Rosario, Pedro Weslley.
  • Rosario, Pedro Weslley; s.af
Arq. bras. endocrinol. metab ; 57(2): 144-147, Mar. 2013. tab
Article in English | LILACS | ID: lil-668752
ABSTRACT

OBJECTIVE:

To evaluate 131I therapy in elderly patients with subclinical hyperthyroidism (SCH) due to nodular disease and who did not receive antithyroid drugs (ATDs), and the effect of the treatment on bone metabolism. SUBJECTS AND

METHODS:

Thirty-six patients with TSH ≤ 0.1 mIU/L and non-voluminous goiter (< 60 cm³) were studied. Bone mineral density (BMD) was assessed in 17 women with osteopenia.

RESULTS:

Mean 24-h 131I uptake was 17.5%. Symptoms of thyrotoxicosis were reported by two (5.5%) patients in the first week after therapy. One year after radioiodine treatment, SCH was resolved in 30 (83.3%) patients, and hypothyroidism was detected in one (2.7%). In the patients in whom TSH returned to normal, femoral and lumbar spine BMD increased by 1.9% and 1.6%, respectively, in average.

CONCLUSIONS:

In elderly patients with SCH and non-voluminous goiter, radioiodine not preceded by ATDs is a safe and effective therapeutic alternative. Resolution of SCH has beneficial effects on BMD in postmenopausal women with osteopenia.
RESUMO

OBJETIVO:

Avaliar a terapia com 131I em idosos com hipertireoidismo subclínico (HSC) por doença nodular que não receberam drogas antitireoidianas (DATs) e o efeito no metabolismo ósseo. SUJEITOS E

MÉTODOS:

Trinta e seis pacientes com TSH ≤ 0,1 mUI/L e bócio não volumoso (< 60 cm³) foram estudados. Dezessete mulheres com osteopenia foram submetidas à avaliação da densidade mineral óssea (DMO).

RESULTADOS:

Captação média de 131I em 24 h foi 17,5%. Sintomas de tireotoxicose foram reportados por dois pacientes (5,5%) na primeira semana após a terapia. Um ano após o radioiodo, HSC foi resolvido em 30 pacientes (83,3%) e hipotireoidismo ocorreu em 1 (2,7%). Nas pacientes que normalizaram o TSH, DMO em fêmur e coluna lombar incrementou em média 1,9% e 1,6%, respectivamente.

CONCLUSÕES:

Em idosos com HSC e bócio não volumoso, radioiodo, não precedido de DATs, é uma alternativa terapêutica segura e eficaz. Resolução do HSC tem benefício na DMO em mulheres menopausadas com osteopenia.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Bone Density / Goiter, Nodular / Hyperthyroidism / Iodine Radioisotopes Type of study: Etiology study Limits: Aged / Aged80 / Female / Humans Language: English Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2013 Type: Article

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Full text: Available Index: LILACS (Americas) Main subject: Bone Density / Goiter, Nodular / Hyperthyroidism / Iodine Radioisotopes Type of study: Etiology study Limits: Aged / Aged80 / Female / Humans Language: English Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2013 Type: Article