One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan

Background: The incidence of papillary thyroid microcarcinoma (PTMC) has increased rapidly in recent decades, with a favorable overall prognosis. We aimed to evaluate the efficacy and safety of ultrasound (US)-guided radiofrequency ablation (RFA) for treating low-risk PTMC in Taiwan. Methods: This p...

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Main Authors: Lay San Lim, Wei-Che Lin, Pi-Ling Chiang, Shun Chen Huang, Yueh-Sheng Chen, Yen-Hsiang Chang, Wen-Chieh Chen, Shun-Yu Chi, Chen-Kai Chou
Format: Article
Language:English
Published: Elsevier 2022-08-01
Series:Journal of the Formosan Medical Association
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0929664621004721
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author Lay San Lim
Wei-Che Lin
Pi-Ling Chiang
Shun Chen Huang
Yueh-Sheng Chen
Yen-Hsiang Chang
Wen-Chieh Chen
Shun-Yu Chi
Chen-Kai Chou
author_facet Lay San Lim
Wei-Che Lin
Pi-Ling Chiang
Shun Chen Huang
Yueh-Sheng Chen
Yen-Hsiang Chang
Wen-Chieh Chen
Shun-Yu Chi
Chen-Kai Chou
author_sort Lay San Lim
collection DOAJ
description Background: The incidence of papillary thyroid microcarcinoma (PTMC) has increased rapidly in recent decades, with a favorable overall prognosis. We aimed to evaluate the efficacy and safety of ultrasound (US)-guided radiofrequency ablation (RFA) for treating low-risk PTMC in Taiwan. Methods: This prospective study included patients with PTMC who were ineligible or refused surgery and underwent US-guided RFA between October 2018 and June 2020. US and computed tomography (CT) were performed before RFA to assess tumor lesions and exclude cervical lymph node metastasis. Sequential US follow-up following RFA was performed after 1, 3, 6, and 12 months, and yearly thereafter. Volume reduction ratio (VRR) and complete disappearance rate of tumor at one year were evaluated. Results: 13 PTMCs in 12 patients were enrolled with a mean follow-up of 16.2 ± 8.1 months (range, 1–24 months). The median largest tumor diameter and tumor volume before RFA were 0.76 cm and 0.15 ml (range, 0.02–0.37 ml). The median (interquartile range, IQR) volume and VRR at 12 months post-RFA were 0 (0, 0.03) ml (p = 0.033) and 100% (84.26%, 100%) (p = 0.008). Eight tumors (61.54%) were completely disappeared at 12 months post-RFA and no tumor recurrence, lymph nodes, or distant metastasis were noted. All tumors were successfully treated without complications. Conclusion: Minimally invasive US-guided RFA is an effective and safe alternative for low-risk PTMC, resulting a satisfied VRR.
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spelling doaj.art-97fd68201e3949c0821bfa71eb99fd8e2022-12-22T01:52:41ZengElsevierJournal of the Formosan Medical Association0929-66462022-08-01121814061413One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in TaiwanLay San Lim0Wei-Che Lin1Pi-Ling Chiang2Shun Chen Huang3Yueh-Sheng Chen4Yen-Hsiang Chang5Wen-Chieh Chen6Shun-Yu Chi7Chen-Kai Chou8Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Corresponding author. Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123 Ta-Pei Road, Niao-Sung, Kaohsiung, Taiwan. Fax: +886 7 731 7123 EXT 2523.Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartments of Pathology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartment of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartment of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDivision of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDepartments of Surgery, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, TaiwanDivision of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Corresponding author. Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 123 Ta-Pei Road, Niao-Sung, Kaohsiung, Taiwan. Fax: + 886 7 732 2402.Background: The incidence of papillary thyroid microcarcinoma (PTMC) has increased rapidly in recent decades, with a favorable overall prognosis. We aimed to evaluate the efficacy and safety of ultrasound (US)-guided radiofrequency ablation (RFA) for treating low-risk PTMC in Taiwan. Methods: This prospective study included patients with PTMC who were ineligible or refused surgery and underwent US-guided RFA between October 2018 and June 2020. US and computed tomography (CT) were performed before RFA to assess tumor lesions and exclude cervical lymph node metastasis. Sequential US follow-up following RFA was performed after 1, 3, 6, and 12 months, and yearly thereafter. Volume reduction ratio (VRR) and complete disappearance rate of tumor at one year were evaluated. Results: 13 PTMCs in 12 patients were enrolled with a mean follow-up of 16.2 ± 8.1 months (range, 1–24 months). The median largest tumor diameter and tumor volume before RFA were 0.76 cm and 0.15 ml (range, 0.02–0.37 ml). The median (interquartile range, IQR) volume and VRR at 12 months post-RFA were 0 (0, 0.03) ml (p = 0.033) and 100% (84.26%, 100%) (p = 0.008). Eight tumors (61.54%) were completely disappeared at 12 months post-RFA and no tumor recurrence, lymph nodes, or distant metastasis were noted. All tumors were successfully treated without complications. Conclusion: Minimally invasive US-guided RFA is an effective and safe alternative for low-risk PTMC, resulting a satisfied VRR.http://www.sciencedirect.com/science/article/pii/S0929664621004721Papillary thyroid microcarcinomaRadiofrequency ablationUltrasound
spellingShingle Lay San Lim
Wei-Che Lin
Pi-Ling Chiang
Shun Chen Huang
Yueh-Sheng Chen
Yen-Hsiang Chang
Wen-Chieh Chen
Shun-Yu Chi
Chen-Kai Chou
One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
Journal of the Formosan Medical Association
Papillary thyroid microcarcinoma
Radiofrequency ablation
Ultrasound
title One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
title_full One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
title_fullStr One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
title_full_unstemmed One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
title_short One year follow-up of US-Guided radiofrequency ablation for low-risk papillary thyroid microcarcinoma: The first experience in Taiwan
title_sort one year follow up of us guided radiofrequency ablation for low risk papillary thyroid microcarcinoma the first experience in taiwan
topic Papillary thyroid microcarcinoma
Radiofrequency ablation
Ultrasound
url http://www.sciencedirect.com/science/article/pii/S0929664621004721
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