Changes of biochemical factors and the effect on recurrence of medullary thyroid carcinoma after surgery
Fengli Guo,
Lijuan Li,
Pengfei Gu,
Guoqiang Zhang,
Xianhui Ruan,
Jingzhu Zhao,
Xiangqian Zheng,
Songfeng Wei,
Ming Gao
Affiliations
Fengli Guo
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China; Department of Thyroid and Breast Surgery, Binzhou Medical University Hospital, Binzhou, China
Lijuan Li
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
Pengfei Gu
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China; Department of Thyroid and Breast Surgery, Binzhou Medical University Hospital, Binzhou, China
Guoqiang Zhang
Department of Thyroid and Breast Surgery, Binzhou Medical University Hospital, Binzhou, China
Xianhui Ruan
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
Jingzhu Zhao
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
Xiangqian Zheng
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
Songfeng Wei
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China; Corresponding author.
Ming Gao
Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China; Department of Thyroid and Breast Surgery, Tianjin Union Medical Center, Tianjin, China; Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China; Corresponding author. Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China.
Objective: Medullary thyroid carcinoma (MTC) is a rare malignancy secreting calcitonin (Ctn). We aimed to analyze the relationship between Ctn levels at different time points in patients with MTC, and evaluate its predictive effect on recurrence. Methods: A retrospective study of patients diagnosed with MTC in a large medical center were conducted in northern China. The interrelationships between preoperative Ctn, normalization of postoperative serum Ctn at the first month (NPS), and long-term biochemical cure as well as their predicting roles on structural recurrence were assessed. Results: A total of 212 patients were included in this study. The median follow-up time was 59.5 months. The 5- and 10-year cumulative disease-free survival rates were 81.5 % and 66.8 %, respectively. NPS (OR: 216.33, 95 % CI: 28.69–1631.09, P < 0.001) and absence of structural recurrence (OR: 61.71, 95 % CI: 3.90–975.31; P = 0.003) were associated with biochemical cure. Non-biochemical cure (OR: 28.76; 95 % CI: 2.84–290.86; P = 0.004, HR: 14.63, 95 % CI: 2.27–94.07, P = 0.005), larger tumor size (OR: 8.79, 95 % CI: 2.12–36.40, P = 0.003, HR: 5.41, 95 % CI: 2.04–14.37, P = 0.001), and multifocality (OR: 4.02, 95 % CI: 1.06–15.17, P = 0.040, HR: 3.00, 95 % CI: 1.18–7.60, P = 0.021) were unfavorable independent predictors of structural recurrence and disease-free survival. For sporadic MTC confined to the thyroid lobe, there was no difference in biochemical or structural prognosis between the different surgeries in the subgroup analysis. Conclusions: NPS, rather than preoperative Ctn, predicted long-term biochemical cure for MTC. Non-biochemical cure, larger tumor burden including larger tumor size and multifocality at initial surgery, served as worse prognostic predictors.
