Terapia radiometabolica del nodulo tiroideo autonomo.

Translated title of the contribution: Radiometabolic therapy of the autonomous thyroid nodule

S. Mariotti, P. Caturegli, G. Barbesino, C. Ceccarelli, F. Lippi, M. Marinò, L. Manetti, E. Martino, A. Pinchera

Research output: Contribution to journalReview article

Abstract

The aim of this paper is to synthetically focus on current views on the use of radioiodine for the treatment of hyperthyroidism in single autonomously functioning thyroid nodules (AFN). Radioiodine administration represents a simple and effective alternative to surgical ablation of AFN, especially in elderly patients with small nodules (< 3 cm diameter). Radioiodine is very selectively accumulated in the thyroid, where it can deliver its energy without virtually affecting any other organ. Since its first use in 1942, 131I is (as Na131I) still the radioisotope of choice, due to easy availability and to its peculiar physical characteristics. These include a short half-life (8 days) and a spectrum of radiation (mainly of the beta type) with an optimal energy delivery in the nodule and with low penetration in the surrounding tissue. The effectiveness of radioiodine administration in permanently correcting hyperthyroidism in AFN has been demonstrated in many studies and may reach 80% with a single dose administration. The optimal dose has not been completely defined, but may be empirically calculated taking into account the weight of the nodule (evaluated by scintiscan or ultrasound) and the radioiodine uptake after 24 hours. In our and in many other institutions, indications to radioiodine treatment are currently the following: age > 35-40 years, diameter of the nodule < 3 cm and/or serious general diseases contraindicating surgical treatment. The only absolute contraindication to radioiodine treatment is pregnancy, due to the possible mutagenic effects on the foetus and to the extreme sensitivity of the foetal thyroid to radioiodine after the 10th week of gestation.(ABSTRACT TRUNCATED AT 250 WORDS)

Translated title of the contributionRadiometabolic therapy of the autonomous thyroid nodule
Original languageItalian
Pages (from-to)155-163
Number of pages9
JournalMinerva endocrinologica
Volume18
Issue number4
StatePublished - Dec 1993
Externally publishedYes

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

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  • Cite this

    Mariotti, S., Caturegli, P., Barbesino, G., Ceccarelli, C., Lippi, F., Marinò, M., Manetti, L., Martino, E., & Pinchera, A. (1993). Terapia radiometabolica del nodulo tiroideo autonomo. Minerva endocrinologica, 18(4), 155-163.