Thyroid Lobectomy With or Without Levothyroxine Treatment Postoperatively

Recurrent Goiter

Thyroid lobectomy,, prophylactic levothyroxine treatment,, recurrent nodular goiter,, iodine deficiency,, long-term follow-up,, completion thyroidectomy

The aim of this study was to compare the prevalence of recurrent nodular goiter in the contralateral thyroid lobe among patients after unilateral thyroid lobectomy for unilateral multinodular goiter receiving versus not receiving prophylactic levothyroxine treatment postoperatively in a five-year follow-up of a randomized study

It is commonly accepted that in patients with benign nodular thyroid disease who undergo operative therapy, surgical resection consists of lobectomy for patients with disease limited to one lobe. Contralateral disease is excluded in such cases by preoperative palpation, ultrasonography of the neck, and intraoperative palpation. On the other hand, the preferred operative procedure for bilateral nodular thyroid disease is total thyroidectomy. Such a treatment strategy minimizes the risk of development of recurrent disease and diminishes the risk of complications when reoperation for recurrent nodular thyroid disease becomes necessary. The recurrence rate for unilateral thyroidectomy of benign nodular goiter performed by expert surgeons has been reported to vary from 10% to 26%. Potential risk factors for recurrence of nodular goiter have been evaluated in many studies and include: young age at presentation, female gender, positive family history of goiter, long duration of symptoms, mutinodularity of thyroid disease, high volume of left thyroid tissue. However, most studies evaluating the incidence of recurrent nodular disease are retrospective, and it is difficult to determine whether the recurrence represents de novo nodule formation in a previously normal thyroid remnant or progression of residual disease left at initial operation. It is well known fact, that most patients after thyroid lobectomy are euthyroid (60%-90%) and do not require thyroid hormone replacement therapy. However, it is an important question whether thyroid hormone administration postoperatively can prevent recurrent nodular thyroid disease in euthyroid hemithyroidectomized patients? The aim of the present randomized study was to compare the prevalence of recurrent nodular goiter in the contralateral thyroid lobe among patients after unilateral thyroid lobectomy for unilateral multinodular goiter (MNG) receiving versus not receiving prophylactic levothyroxine (LT4) treatment postoperatively in a five-year follow-up.

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