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Medicina (Buenos Aires)

versión On-line ISSN 1669-9106


PITOIA, Fabián; EL TAMER, Elías; SALVAI, María Eugenia  y  NIEPOMNISZCZE, Hugo. Protocol for thyroid remnant ablation after recombinant TSH in thyroid carcinoma. Medicina (B. Aires) [online]. 2009, vol.69, n.1, pp. 148-152. ISSN 1669-9106.

In some countries, in order to perform rhTSH-aided thyroid remnant ablation (TRA) after surgery, it is generally necessary to confirm that thyroidectomy has been almost complete. Otherwise, the nuclear medicine specialist will not administer a high radioiodine dose because it might be hazardous due to the possibility of thyroid remnant actinic thyroiditis. Considering this, it would be necessary to use two rhTSH kits (one for diagnostic purposes and the other one to administer the 131I dose). In this study, we used an alternative protocol for TRA with the use of one kit of rhTSH in twenty patients diagnosed with low risk papillary thyroid carcinoma. All patients had negative titers of anti-thyroglobulin antibodies. Successful thyroid remnant ablation was confirmed with an undetectable rhTSH stimulated thyroglobulin level (< 1 ng/ml) in all 20 patients between 8 to 12 months after radioiodine administration. The use of this protocol combining scintigraphy with the subsequent administration of a therapeutic dose following the administration of one kit of rhTSH would avoid the need of using 2 kits to perform the ablation and would decrease the costs associated with its use while significantly enhancing the quality of life of patients with thyroid cancer.

Palabras clave : Recombinant human TSH; Cancer; Thyroid; Ablation.

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