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Ultrasonography surveillance in papillary thyroid carcinoma patients after total thyroidectomy according to dynamic risk stratification

Authors
 Jiyoung Yoon  ;  Jung Hyun Yoon  ;  Kyunghwa Han  ;  Jandee Lee  ;  Eun-Kyung Kim  ;  Hee Jung Moon  ;  Vivian Youngjean Park  ;  Jin Young Kwak 
Citation
 ENDOCRINE, Vol.69(2) : 347-357, 2020-08 
Journal Title
ENDOCRINE
ISSN
 1355-008X 
Issue Date
2020-08
Keywords
Biopsy, fine needle ; Guideline ; Thyroid cancer, papillary ; Thyroidectomy ; Ultrasonography
Abstract
Purpose: To investigate the role of neck US surveillance in patients with papillary thyroid carcinoma (PTC) after total thyroidectomy according to dynamic risk stratification (DRS) based on response to initial therapy.

Methods: This retrospective study included 812 patients with PTC who underwent total thyroidectomy with prophylactic central neck dissection from January 2003 through February 2007. The relative risk of recurrence/persistence according to DRS was evaluated with the multivariable Cox regression proportional hazard model.

Results: There were 132 men and 680 women. The mean age at surgery was 45.2 years. Postoperative US was used for DRS. According to DRS, 676 patients had excellent response, 78 indeterminate response, 40 biochemical incomplete response, and 18 structural incomplete response to initial therapy. Neck US was performed during follow-up and detected locoregional recurrences in 21 patients (2.6%): 12 with excellent response, 2 with biochemical incomplete response, and 7 with structural incomplete response according to DRS. Only 1 patient (0.1%) with excellent response had a locoregional recurrence that exceeded 8 mm in its shortest diameter, which is the size cut-off for diagnostic US fine-needle aspiration in suspicious lymph nodes. This patient did not develop biochemical abnormalities during follow-up.

Conclusions: Postoperative neck US surveillance after total thyroidectomy with prophylactic central neck dissection is not essential in PTC patients who show excellent response to initial therapy. Future studies are needed to verify the role of US surveillance in patients who receive variable degrees of treatments.
Full Text
https://link.springer.com/article/10.1007%2Fs12020-020-02347-9
DOI
10.1007/s12020-020-02347-9
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Jin Young(곽진영) ORCID logo https://orcid.org/0000-0002-6212-1495
Kim, Eun-Kyung(김은경) ORCID logo https://orcid.org/0000-0002-3368-5013
Moon, Hee Jung(문희정) ORCID logo https://orcid.org/0000-0002-5643-5885
Park, Vivian Youngjean(박영진) ORCID logo https://orcid.org/0000-0002-5135-4058
Yoon, Jung Hyun(윤정현) ORCID logo https://orcid.org/0000-0002-2100-3513
Yoon, Jiyoung(윤지영)
Lee, Jan Dee(이잔디) ORCID logo https://orcid.org/0000-0003-4090-0049
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/179688
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