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Radiofrequency Ablation for the Treatment of Benign Thyroid Nodules: 10-Year Experience

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dc.contributor.authorPark, SI-
dc.contributor.authorBaek, JH-
dc.contributor.authorLee, DH-
dc.contributor.authorChung, SR-
dc.contributor.authorSong, DE-
dc.contributor.authorKim, WG-
dc.contributor.authorKim, TY-
dc.contributor.authorSung, TY-
dc.contributor.authorChung, KW-
dc.contributor.authorLee, JH-
dc.date.accessioned2024-09-27T00:19:39Z-
dc.date.available2024-09-27T00:19:39Z-
dc.date.issued2024-
dc.identifier.issn1050-7256-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/32788-
dc.description.abstractBackground: Longer follow-up after radiofrequency ablation (RFA) of benign thyroid nodules is needed to understand regrowth and other causes of delayed surgery and long-term complications. Methods: This retrospective study included consecutive patients treated with RFA for symptomatic benign nonfunctioning thyroid nodules between March 2007 and December 2010. RFA was performed according to the standard protocol. We followed up patients at 1, 6, and 12 months, then yearly, until August 2022, and calculated the volume reduction ratio (VRR) at each follow-up. We assessed the incidence of regrowth according to three published criteria, delayed surgery, and complications. The Kaplan–Meier method was used to evaluate the cumulative incidence of regrowth, and univariable and multivariable Cox regression analyses were performed to identify risk factors for regrowth. Results: This study included 421 patients (mean age, 47 – 13 years; 372 women) with 456 nodules (mean volume, 21 – 23 mL). The median follow-up period was 90 months (interquartile range, 24–143 months). The mean VRR was 81% at 2 years, 90% at 5 years, and 94% at ‡10 years. Overall regrowth was noted in 12% (53/456) of nodules and was treated with repeat RFA (n = 33) or surgery (n = 4) or left under observation (n = 16). Thyroid nodules with ‡20 mL initial volume had significantly higher risk of regrowth compared with nodules with <10 mL initial volume (hazard ratio, 2.315 [95% confidence interval, 1.183–4.530]; p = 0.014 on multivariable Cox regression analysis). Delayed surgery was performed in 6% (26/421) of patients because of regrowth and/or persistent symptoms (n = 4) or newly detected thyroid tumors (n = 22), one benign and 21 malignant. The overall complication rate was 2.4% (10/421), with no procedure-related deaths or long-term complications. Conclusion: RFA is safe and effective for treating benign thyroid nodules, with a high VRR at long-term followup. Regular follow-up after initial success is warranted because of the possibility of regrowth of ablated nodules and the need for delayed surgery in some patients.-
dc.language.isoen-
dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHFemale-
dc.subject.MESHFollow-Up Studies-
dc.subject.MESHHumans-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHRadiofrequency Ablation-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHRisk Factors-
dc.subject.MESHThyroid Nodule-
dc.subject.MESHTreatment Outcome-
dc.titleRadiofrequency Ablation for the Treatment of Benign Thyroid Nodules: 10-Year Experience-
dc.typeArticle-
dc.identifier.pmid39041607-
dc.subject.keywordradiofrequency ablation-
dc.subject.keywordthyroid nodule-
dc.contributor.affiliatedAuthorLee, DH-
dc.type.localJournal Papers-
dc.identifier.doi10.1089/thy.2024.0082-
dc.citation.titleThyroid-
dc.citation.volume34-
dc.citation.number8-
dc.citation.date2024-
dc.citation.startPage990-
dc.citation.endPage998-
dc.identifier.bibliographicCitationThyroid, 34(8). : 990-998, 2024-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.eissn1557-9077-
dc.relation.journalidJ010507256-
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Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
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