Analysis of postoperative ultrasonography surveillance after total thyroidectomy in patients with papillary thyroid carcinoma: a multicenter study
- Authors
- Ryoo, Inseon; Kim, Dong Wook; Lee, Chang Yoon; Huh, Jung Yin; Lee, Song; Ahn, Hye Shin; Sung, Jin Yong
- Issue Date
- 2월-2018
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Thyroid; papillary thyroid carcinoma; total thyroidectomy; recurrence; ultrasonography
- Citation
- ACTA RADIOLOGICA, v.59, no.2, pp.196 - 203
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACTA RADIOLOGICA
- Volume
- 59
- Number
- 2
- Start Page
- 196
- End Page
- 203
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/77800
- DOI
- 10.1177/0284185117700448
- ISSN
- 0284-1851
- Abstract
- Background: In papillary thyroid carcinoma (PTC) patients, postoperative ultrasonography (US) surveillance is recommended at intervals of six or 12 months even though evidence is weak. Purpose: To determine the optimal interval of postoperative US surveillance in patients after total thyroidectomy for the treatment of PTC using multicenter data. Material and Methods: A total of 1400 patients from seven tertiary hospitals who underwent total thyroidectomy for treatment of PTC were included. Based on a retrospective review of clinical and pathologic results, multiple factors were analyzed according to recurrence/persistence or no recurrence/persistence. In recurrence/persistence group, the interval and number of follow-up US sessions in the initial detection of recurrence/persistence were investigated. Results: Of the 1400 patients, 115 (8.2%) showed tumor recurrence/persis tence on follow-up US. Of 115 recurrence/persistence cases, 89 (77.4%) were initially detected on US: nodal recurrence/persiste nce (n = 92), non-nodal recurrence/persistence (n = 22), and both (n = 1). Among the clinical and pathologic factors, only tumor size and N stage were significant predictors for recurrence/persistence. In the recurrence /persistence group, the mean interval and number of follow-up US sessions in the initial detection of recurrence/persistence was 22.3 +/- 16.8 months and 2.2 +/- 1.9, respectively. Approximately two-thirds of recurrence/persistence cases (76/115, 66.1%) were detected in follow-up US within two years after total thyroidectomy. Conclusion: In PTC patients after total thyroidectomy, the optimal interval of the first US follow-up may be one to two years after thyroid surgery, and the appropriate number of postoperative US surveillance sessions within the first five years may be only one or two.
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