Comparison of the abilities of staging and risk stratification systems to predict the long-term structural recurrence in patients with differentiated thyroid carcinoma after total thyroidectomy and radioactive iodine remnant ablation

被引:3
作者
Nam, Kyung Tae [1 ]
Park, Jae Hyun [1 ]
Moon, Gil Seong [1 ]
Yoon, Jong Ho [1 ]
机构
[1] Yonsei Univ, Wonju Severance Christian Hosp, Dept Surg, Wonju Coll Med, Wonju, South Korea
关键词
Differentiated thyroid cancer; dynamic risk stratification (DRS); proportion of variance explained (PVE); structural recurrence; disease-free survival (DFS); CANCER; PAPILLARY; ASSOCIATION; MANAGEMENT; THERAPY; CLASSIFICATION; OUTCOMES; SURGERY; SOCIETY;
D O I
10.21037/gs-21-8
中图分类号
R61 [外科手术学];
学科分类号
摘要
Background: In patients with differentiated thyroid carcinoma (DTC), various staging and risk stratification systems have been applied to estimate long-term recurrence, which is a major issue during the postoperative follow-up period. However, the efficacy of these systems remains unclear in this context. Methods: The present historical cohort study included 510 patients with DTC who underwent a total thyroidectomy followed by radioactive iodine (RAI) remnant ablation. Enrolled patients were categorized according to the 8th edition of American Joint Committee on Cancer/Union for International Cancer Control (AJCC/UICC) Tumor Node Metastasis (TNM) staging system, the 2015 American Thyroid Association (ATA) initial risk stratification system, and the dynamic risk stratification (DRS) system. The ability of each system to predict long-term structural recurrence was compared using proportion of variance explained (PVE) by logistic regression models. Results: The median follow-up period was 108 months. Structural recurrence occurred in 7.6% of the patients (n=39/510). Disease-free survival (DFS) curves of the patients within each category in the TNM staging system, the ATA initial risk stratification system, and the DRS system were significantly different (P<0.001). The PVE of the DRS system (20.7%) was higher than those of the TNM staging system and the ATA initial risk estimates. Conclusions: The DRS system may effectively predict long-term structural recurrence and guide long-term management and follow-up strategies in patients with DTC undergoing total thyroidectomy and RAI remnant ablation.
引用
收藏
页码:2200 / 2210
页数:11
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