Oncotarget

Clinical Research Papers:

Surgical management for follicular variant of papillary thyroid carcinoma

Jianing Tang, Deguang Kong, Lupin Bu and Gaosong Wu _

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Oncotarget. 2017; 8:79507-79516. https://doi.org/10.18632/oncotarget.18525

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Abstract

Jianing Tang1, Deguang Kong2, Lupin Bu1 and Gaosong Wu1

1Department of Breast and Thyroid Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, P.R. China

2Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, P.R. China

Correspondence to:

Gaosong Wu, email: wugaosongtj@163.com

Keywords: follicular variant of papillary thyroid carcinoma, surgery, SEER

Received: April 12, 2017     Accepted: June 04, 2017     Published: June 16, 2017

ABSTRACT

Background and Aims: For most patients with follicular variant of papillary thyroid carcinoma (FVPTC), surgery is required, while the surgical management remains controversial. We aim to further understanding of treatment of FVPTC and to determine whether specific features could be identified for the decision of surgical strategy.

Materials and Methods: Data were obtained from the Surveillance, Epidemiology, and End Results (SEER) Program database during 2003 and 2013. 26700 patients were eligible and stratified by tumor size or extension. Survival rates were compared using multivariate Cox proportional hazard regressions.

Results: Of the total death of 1041, 136 patients died from thyroid cancer. Most patients (79.1%) underwent total thyroidectomy while only a little part of patients (8.2%) underwent lobectomy. Patients receiving radioisotopes had significantly better overall survival (OS) (HR = 0.659, P < 0.001), but showed no differences on disease-specific survival (DSS). No statistical difference was found between total thyroidectomy and lobectomy in multivariate analysis when controlling for tumor size. While for tumor > 2 cm with extrathyroidal extension, lobectomy had significantly worse OS (aHR = 3.364, P = 0.010) and DSS (aHR = 5.494, P = 0.032) compared to total thyroidectomy. Multivariate analysis demonstrated that advanced age, male, higher grade, extrathyroidal extension, lymph nodes metastases and distant metastases had negative effects on OS and DSS controlling for the remaining variables (each P < 0.05).

Conclusions: The results of our study revealed total thyroidectomy could benefit the survival for patients whose tumors > 2 cm with extrathyroidal extension, total thyroidectomy should be recommended for those patients. Lots of factors should be taken into consideration on the decision of surgical treatment.


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