Clinical practice guidelines for radiofrequency ablation of benign thyroid nodules: a systematic review
Minkyoung Lee1,2 , Jung Hwan Baek1 , Chong Hyun Suh1 , Sae Rom Chung1 , Young Jun Choi1 , Jeong Hyung Lee1 , Eun Ju Ha3 , Dong Gyu Na4,5
1Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
2Department of Radiology, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
3Department of Radiology, Ajou University School of Medicine, Suwon, Korea
4Department of Radiology, GangNeung Asan Hospital, Gangneung, Korea
5Department of Radiology, Human Medical Imaging and Intervention Center, Seoul, Korea
Corresponding Author: Jung Hwan Baek ,Tel: 82-2-3010-4348, Fax: 82-2-476-0090, Email:
Received: January 30, 2020;  Accepted: June 8, 2020.  Published online: June 8, 2020.
Thermal ablation is a novel treatment alternative for benign thyroid nodules, and one of the most promising thermal ablation techniques is radiofrequency ablation (RFA). Considering the increasing use of thyroid RFA, some scientific societies have proposed clinical practice guidelines. We systemically reviewed and compared these guidelines for thyroid RFA to identify a standard treatment strategy that represents the positions of most societies.
We searched the MEDLINE and EMBASE databases for studies with human participants that were published in English between January 1, 2000 and August 2, 2019. Studies containing clinical practice guidelines for the RFA of benign thyroid nodules were included. We extracted data regarding indications, pre- and post-procedural evaluations, treatment techniques, and the need to obtain informed consent.
Of the 83 studies found, four studies were included, and one study was added after searching the bibliographies of those articles. The five included studies were guidelines developed by the Korean Society of Thyroid Radiology, a group of experts from Italian scientific societies, the Italian Working Group on Minimally Invasive Treatments of the Thyroid, the United Kingdom’s National Institute for Health and Clinical Excellence, and a group of four professional Austrian thyroid associations. Indications, pre- and post-procedural evaluations, and techniques were similar across studies; however, differences in each of these categories were found.
While the reviewed guidelines are similar with regard to major categories, international guidelines for the RFA of benign thyroid nodules should be established in the future.
Keywords: Thyroid; Ultrasound; Radiofrequency ablation; Benign thyroid nodules; Recurrent thyroid cancers
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