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Journal of Cancer Research and Clinical Oncology

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01-04-2018 | Original Article – Clinical Oncology

Long-term efficacy of ultrasound-guided low power microwave ablation for the treatment of primary papillary thyroid microcarcinoma: a 3-year follow-up study

Authors: Dengke Teng, Guoqing Sui, Caimei Liu, Yu Wang, Yongxu Xia, Hui Wang

Published in: Journal of Cancer Research and Clinical Oncology | Issue 4/2018

Abstract

Purpose

To evaluate the safety and efficacy of ultrasound-guided low-power microwave ablation (MWA) for the treatment of papillary thyroid microcarcinoma (PTMC) with a 3-year follow-up.

Methods

A total of 21 nodules diagnosed as PTMC from the 15 patients were performed with MWA at a power of 20 W. The images of the nodules were recorded by ultrasound before MWA and 1, 3, 6, 12 months after MWA, and every 6 months thereafter, respectively. The volumes of the nodules were compared before MWA and at each follow-up point after MWA. The volume reduction rate (VRR) of nodules was also calculated.

Results

The mean volume of the nodules was 134.3 ± 129.8 mm³ initially (the range was 7.4–423.8 mm³), which decreased significantly to 2.3 ± 10.5 mm³ (the range was 0–48.1 mm³) of the ablation area (P = 0.000) at the follow-up point of 36 months with a mean VRR as 98.78 ± 5.61% (the range was 74.28–100%). During the follow-up period (the range was 36–48 months), 20 of the 21 nodules were completely absorbed and no recurrent nodule was found.

Conclusions

After a long-term follow-up of 3 years, the low power MWA showed a good safety and efficacy for the treatment of PTMC. In addition to surgery and active surveillance, MWA might be another alternative for patients with PTMC.

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Title: Long-term efficacy of ultrasound-guided low power microwave ablation for the treatment of primary papillary thyroid microcarcinoma: a 3-year follow-up study
Authors: Dengke Teng
Guoqing Sui
Caimei Liu
Yu Wang
Yongxu Xia
Hui Wang
Publication date: 01-04-2018
Publisher: Springer Berlin Heidelberg
Published in: Journal of Cancer Research and Clinical Oncology / Issue 4/2018
Print ISSN: 0171-5216
Electronic ISSN: 1432-1335
DOI: https://doi.org/10.1007/s00432-018-2607-7

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