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Original Articles

Comparison of efficacy and complications between radiofrequency ablation and repeat surgery in the treatment of locally recurrent thyroid cancers: a single-center propensity score matching study

Yangsean ChoiDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0003-1674-7101

So Lyung JungDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea; Correspondence[email protected]

http://orcid.org/0000-0002-3267-8399

Ja-Sung BaeDepartment of Thyroid Surgery, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

So-Hee LeeDepartment of Thyroid Surgery, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

Chan-Kwon JungDepartment of Pathology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea

Jinhee JangDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0002-3386-1208

Na-Young ShinDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0003-1157-6366

Hyun Seok ChoiDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0003-4999-8513

Kook-Jin AhnDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0001-6081-7360

Bum-Soo KimDepartment of Radiology, The Catholic University of Korea College of Medicine, Seoul St. Mary’s Hospital, Seoul, Korea;

http://orcid.org/0000-0002-3870-6813

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Figures & data

Figure 1. Flowchart of the patient enrollment. RFA: radiofrequency ablation.

Figure 2. Ultrasound (US; a) and computed tomography (CT; c) images obtained at the initial radiofrequency ablation procedure in a 51-year old woman with recurrence at right cervical level 4 (a and c, respectivelyarrows). The recurrent lesion completely disappeared at the 98-month follow-up, as observed on US (b), and had also disappeared at the 5-month follow-up, as observed on CT (d; arrows).

Figure 3. Ultrasound (US; a) and positron emission tomography-computed tomography (PET-CT; c) images of recurrence at right cervical level 4 in an 81-year old female patient. At the 122-month follow-up, complete disappearance of the recurrence was observed on US (b); it was also noted at the 39-month follow-up on PET-CT (d).

Figure 4. Kaplan–Meier recurrence-free survival curves of radiofrequency ablation (RFA; green) and surgery (red) groups before (a) and after (b) propensity score matching.

Comparison of efficacy and complications between radiofrequency ablation and repeat surgery in the treatment of locally recurrent thyroid cancers: a single-center propensity score matching study

Table 1. Baseline characteristics of study population.

Table 2. Serum T_g level changes and recurrence-free survival of both groups.

Table 3. Complications after RFA and repeat surgery.

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Comparison of efficacy and complications between radiofrequency ablation and repeat surgery in the treatment of locally recurrent thyroid cancers: a single-center propensity score matching study

Figures & data

Table 1. Baseline characteristics of study population.

Table 2. Serum Tg level changes and recurrence-free survival of both groups.

Table 3. Complications after RFA and repeat surgery.

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Table 2. Serum T_g level changes and recurrence-free survival of both groups.