Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up

Abstract Purpose To evaluate the efficacy and safety of radiofrequency ablation (RFA) for treating calcified benign thyroid nodules (CBTNs). Methods Fifty-two patients with 52 CBTNs who underwent RFA in our hospital were included in this retrospective study. According to the size of calcifications,...

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Main Authors: Yi Li, Hongying He, Wen Li, Jiahang Zhao, Naiqiao Ge, Yan Zhang, Yukun Luo
Format: Article
Language:English
Published: BMC 2022-04-01
Series:BMC Medical Imaging
Subjects:
Online Access:https://doi.org/10.1186/s12880-022-00795-5
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author Yi Li
Hongying He
Wen Li
Jiahang Zhao
Naiqiao Ge
Yan Zhang
Yukun Luo
author_facet Yi Li
Hongying He
Wen Li
Jiahang Zhao
Naiqiao Ge
Yan Zhang
Yukun Luo
author_sort Yi Li
collection DOAJ
description Abstract Purpose To evaluate the efficacy and safety of radiofrequency ablation (RFA) for treating calcified benign thyroid nodules (CBTNs). Methods Fifty-two patients with 52 CBTNs who underwent RFA in our hospital were included in this retrospective study. According to the size of calcifications, CBTNs were divided into two groups: the punctate echogenic foci (PEF) group and macrocalcification group. Moreover, the macrocalcification group was further subdivided into two groups, the strong group and the weak group, based on their morphologic characteristics. After the RFA procedure, routine ultrasound (US) and clinical evaluation were performed at 1, 3, 6 and 12 months postoperatively and every 12 months thereafter. Results The mean follow-up time was 68.98 ± 7.68 months (60–87 months), and the 5-year mean volume reduction rate (VRR) after RFA was 92.95%, with a complication rate of 0.6% (3/52). The mean initial volume of the macrocalcification group was significantly larger than that of the PEF group (9.94 ± 24.60 ml vs. 0.23 ± 0.22 ml, respectively; P = 0.011). Thus, their VRRs were not comparable between the two groups. However, baseline characteristics did not show statistically significant differences between the strong and weak macrocalcification subgroups. The VRRs of the strong subgroup were significantly lower than those of the weak subgroup at the 3-year, 4-year, and 5-year follow-ups. Conclusion RFA was effective and safe for treating CBTNs. Strong macrocalcification was related to the VRR of CBTNs after the RFA procedure.
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spelling doaj.art-59af89641b1d42ca9c3464aee01d87752022-12-22T01:18:51ZengBMCBMC Medical Imaging1471-23422022-04-0122111010.1186/s12880-022-00795-5Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-upYi Li0Hongying He1Wen Li2Jiahang Zhao3Naiqiao Ge4Yan Zhang5Yukun Luo6Department of Ultrasound, Medical School of Chinese PLADepartment of Ultrasound, the First Medical Centre, Chinese PLA General HospitalDepartment of Ultrasound, Medical School of Chinese PLADepartment of Ultrasound, Medical School of Chinese PLADepartment of Ultrasound, Medical School of Chinese PLADepartment of Ultrasound, the First Medical Centre, Chinese PLA General HospitalDepartment of Ultrasound, the First Medical Centre, Chinese PLA General HospitalAbstract Purpose To evaluate the efficacy and safety of radiofrequency ablation (RFA) for treating calcified benign thyroid nodules (CBTNs). Methods Fifty-two patients with 52 CBTNs who underwent RFA in our hospital were included in this retrospective study. According to the size of calcifications, CBTNs were divided into two groups: the punctate echogenic foci (PEF) group and macrocalcification group. Moreover, the macrocalcification group was further subdivided into two groups, the strong group and the weak group, based on their morphologic characteristics. After the RFA procedure, routine ultrasound (US) and clinical evaluation were performed at 1, 3, 6 and 12 months postoperatively and every 12 months thereafter. Results The mean follow-up time was 68.98 ± 7.68 months (60–87 months), and the 5-year mean volume reduction rate (VRR) after RFA was 92.95%, with a complication rate of 0.6% (3/52). The mean initial volume of the macrocalcification group was significantly larger than that of the PEF group (9.94 ± 24.60 ml vs. 0.23 ± 0.22 ml, respectively; P = 0.011). Thus, their VRRs were not comparable between the two groups. However, baseline characteristics did not show statistically significant differences between the strong and weak macrocalcification subgroups. The VRRs of the strong subgroup were significantly lower than those of the weak subgroup at the 3-year, 4-year, and 5-year follow-ups. Conclusion RFA was effective and safe for treating CBTNs. Strong macrocalcification was related to the VRR of CBTNs after the RFA procedure.https://doi.org/10.1186/s12880-022-00795-5Radiofrequency ablationMoving shot techniqueBenign thyroid noduleCalcificationVolume reduction rate
spellingShingle Yi Li
Hongying He
Wen Li
Jiahang Zhao
Naiqiao Ge
Yan Zhang
Yukun Luo
Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
BMC Medical Imaging
Radiofrequency ablation
Moving shot technique
Benign thyroid nodule
Calcification
Volume reduction rate
title Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
title_full Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
title_fullStr Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
title_full_unstemmed Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
title_short Efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules: results of over 5 years' follow-up
title_sort efficacy and safety of radiofrequency ablation for calcified benign thyroid nodules results of over 5 years follow up
topic Radiofrequency ablation
Moving shot technique
Benign thyroid nodule
Calcification
Volume reduction rate
url https://doi.org/10.1186/s12880-022-00795-5
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