16 April 2016 : Clinical Research
Analysis of Risk Factors Contributing to Recurrence of Papillary Thyroid Carcinoma in Chinese Patients Who Underwent Total ThyroidectomyWei ZhangCE, De JiaoBDF, Baoguo LiuCDF, Shanping SunAF
Med Sci Monit 2016; 22:1274-1279
BACKGROUND: Thyroid cancer is a very common endocrine malignancy, with a rate of total thyroidectomy reported to be up to 27.8%. However, studies analyzing the risk factors that contribute to recurrence of papillary thyroid carcinoma (PTC) after total thyroidectomy in China are still scarce.
MATERIAL AND METHODS: A total of 536 patients with PTC who underwent total thyroidectomy were retrospectively analyzed. Patients were divided into 2 groups: patients with no recurrent tumor were included in group 1 and patients with tumor recurrence were included in group 2.
RESULTS: Of 536 patients, 65 patients (12.1%) developed a recurrence of PTC, and 471 patients (87.9%) did not have a recurrence. Univariate analysis indicated that male sex, age ≥50 years, tumor ≥1 cm, poor differentiation, lymph node metastasis, bilaterality, and multifocality may be related to PTC recurrence. Additionally, the results of the logistic regression analysis indicated that male sex, age ≥50 years, primary tumor ≥1 cm, poor dedifferentiation of the tumor, lymph node metastasis, and multifocality may be independent factors contributing to PTC recurrence.
CONCLUSIONS: Male sex, age more than 50 years, primary tumor larger than 1 cm, poor dedifferentiation of the primary tumor, lymph node metastasis, and multifocality were found to increase the risk of PTC recurrence in patients who underwent total thyroidectomy. Additionally, it is necessary to use strictly aggressive and extensive surgery, as well as close monitoring, after the operation.
Keywords: Carcinoma - surgery, China, Follow-Up Studies, Neoplasm Recurrence, Local - pathology, Prognosis, Risk Factors, Thyroid Neoplasms - surgery, Thyroidectomy - methods
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