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ORIGINAL ARTICLE
Year : 2021  |  Volume : 17  |  Issue : 3  |  Page : 638-643

Changes in thyroid antibody and T lymphocyte subsets after radiofrequency ablation of thyroid nodules in patients with autoimmune thyroiditis


1 Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou; Department of Interventional Oncology, School of Medicine, Renji Hospital, Shanghai Jiao-Tong University, Shanghai, China
2 Department of Interventional Oncology, School of Medicine, Renji Hospital, Shanghai Jiao-Tong University, Shanghai, China
3 Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China

Correspondence Address:
Bo Zhai
Department of Interventional Oncology, School of Medicine, Renji Hospital, Shanghai Jiao-tong University, No. 160 Pujian Road, Pudong New District, Shanghai 200120
China
Xiaoli Zhu
Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, No. 899 Pinghai Road, Suzhou 215000
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_1421_20

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Settings and Design: The aim was to study the changes in thyroid antibody and T lymphocyte subsets after radiofrequency ablation (RFA) of thyroid nodules in patients with autoimmune thyroiditis. Subjects and Methods: Patients (n = 135) with autoimmune thyroiditis and thyroid nodules were treated by RFA. The indices of thyroid function and thyroid antibody and T lymphocyte subsets were examined preoperation and on the 1st day and the 1st month after ablation. Any complications were recorded. Statistical Analysis: The software SPSS 17.0.0 (version: 2008-8-23) running under Windows 8 was used for statistical analysis. The measurement data were expressed as x ± s, with P < 0.01 indicating a significant difference in the statistical data. Results: Levels of free triiodothyronine, free thyroxine, and thyroid-stimulating hormone were in the normal range before ablation, and no significant changes occurred on the 1st day or in the 1st month after ablation. The change in the percentage of CD8+T cells and the absolute value of B cells were not statistically significant (P > 0.01), and the values were in the normal range. Compared with values recorded preoperation, the value of TG-Ab, TPO-Ab, CD4+/CD8+, the percentage of CD4+T cells, the absolute values of lymphocytes, T cells, CD4+T cells, and CD8+T cells decreased significantly at the 1st day after ablation (P < 0.01) and then recovered to preoperative levels during the first 30 days after ablation (P > 0.01). Within 1 month after ablation, none of the patients had complications such as active bleeding, infection, recurrent laryngeal nerve injury, parathyroid gland injury, skin scald, and so on. Conclusions: After RFA of thyroid nodules in patients with autoimmune thyroiditis, thyroid function is not affected and no serious complications occurred. TG-Ab and TPO-Ab levels can be significantly decreased, and the distribution of T lymphocyte subsets can be changed in the short term after ablation.


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