Microwave ablation for benign thyroid nodules with cosmetic problems and related factors for post-ablative complete relief: a two-center retrospective study
Author:
Li Xiao-Long1, Chen Zi-Tong1, Jin Yun-Jie1, Xu Ben-Hua1, Xu Ya-Dan1, Cao Qiong1, Bo Xiao-Wan2, Wen Jie-Xian1, Ji Zheng-Biao1, Fan Pei-Li1, Xu Hui-Xiong1
Affiliation:
1. Fudan University 2. Shanghai Tenth People’s Hospital, Ultrasound Research and Education Institute, Tongji University
Abstract
Abstract
Purpose: To investigate the efficacy of ultrasound (US)-guided percutaneous MWA for benign thyroid nodules with cosmetic problems and related factors for post-ablative complete relief (CR).
Methods: This retrospective study reviewed thyroid nodule efficacy in patients with cosmetic problems who underwent MWA from January 2021 to May 2023. Patients were followed up at 1, 3, and 6 months after MWA. Pre-treatment clinical characteristics, conventional ultrasound (US) and contrast-enhanced ultrasound (CEUS) features were analyzed to explore their correlation with cosmetic problems of CR (i.e., cosmetic score 1 or 2 at the 6-months follow-up). Univariable and multivariable regression analyses were carried out to identify variables associated with CR, and the related nomogram was established. Calibration curve and decision curve analysis were used to evaluate the nomogram performance.
Results: 118 patients with 118 nodules were included in the study. During the 1-, 3- and 6-month follow-up, the mean volume reduction ratios (VRR) were 2%, 36% and 73%, respectively. 22.0% (26/118), 57.6% (68/118), and 89.8% (106/118) patients achieved CR of cosmetic problems at 1, 3, and 6 months after MWA. In multivariable analysis, three variables (i.e., non-hashimoto’s thyroiditis [HT] [OR: 90.036, P= 0.001], nodule location not close to danger triangle area [OR: 66.812, P= 0.003], early hyperenhancement on CEUS [OR: 0.035, P = 0.024]) were found to be closely associated with CR of cosmetic problems at 6 months after MWA. A nomogram model was constructed, and its accuracy was well validated (i.e., C-index=0.914).
Conclusion: MWA was effective and safe for treating benign thyroid nodules with cosmetic problems. Moreover, non-HT, nodule location not close to danger triangle area, and early hyperenhancement on CEUS were associated with CR of cosmetic problems after MWA.
Publisher
Research Square Platform LLC
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