[Treatment of benign thyroid nodules by radiofrequency thermal ablation].

Introduction: Benign thyroid nodules are frequent findings in imaging studies, most of the time not requiring any intervention. Treatment is usually started when nodules increase in size, the patient becomes symptomatic or clinically relevant hyperthyroidism develops. Thermoablation is an effective alternative modality. In Hungary, our team has pioneered these interventions using radiofrequency ablation for decreasing the size of the nodules.

Aim: We are presenting our results showing the effectiveness of this treatment after introducing the role, importance and technique of thermoablation in benign thyroid nodules.

Method: Between June of 2016 and September of 2019, 186 nodules of 140 patients were treated with radiofrequency ablation and had at least 6 months of follow up. The volume and diameter of all the ablated nodules were measured and calculated, then the decreases of these parameters were followed using ultrasonography. The mean follow-up time was 12.5 ± 5.9 months.

Results: The size measurements at the follow-up ultrasonography examinations showed a decrease in size and vascularity. The mean volume reduction was 44.7 ± 17.6% at one-month post-treatment and 72.9 ± 17.9% at 6 months. There were 3 minor complications.

Conclusions: Radiofrequency ablation represents a feasible, effective, well tolerated method for outpatient treatment of benign thyroid nodules. This method is a valuable alternative to surgical treatments in selected cases. Orv Hetil. 2020; 161(27): 1131-1136.