Baek, Jung Hwan; Kim, Yoon Suk; Lee, Ducky; Huh, Jung Yin; Lee, Jeong Hyun
AJR. American journal of roentgenology
2010Apr ; 194 ( 4 ) :1137-42.
PMID : 20308523
ÀúÀÚ »ó¼¼Á¤º¸
Baek, Jung Hwan -
Kim, Yoon Suk -
Lee, Ducky -
Huh, Jung Yin -
Lee, Jeong Hyun -
ABSTRACT
OBJECTIVE: The purpose of this study was to evaluate the efficacy of radiofrequency ablation of benign predominantly solid thyroid nodules by comparing the findings in treatment and control groups. SUBJECTS AND
METHODS: Thirty patients with normal thyroid function, each with a benign predominantly (> 50%) solid thyroid nodule causing pressure symptoms or cosmetic problems, were assigned to a control group (n = 15) or to a group undergoing a single session of radiofrequency ablation (n = 15). Thyroid nodule volume, thyroid function, pressure symptoms, and cosmetic concerns were evaluated before treatment and during follow-up. Sonographically guided radiofrequency ablation was performed with an internally cooled electrode (1-cm active tip) with an output power of 30-80 W.
RESULTS: The control group had no resolution of symptoms or cosmetic problems. The mean nodule volume increased slightly after 6 months but without statistical significance (p = 0.46). In the radiofrequency ablation group, the mean symptom score (p = 0.001) and cosmetic grade (p = 0.001) improved significantly. Mean nodule volume decreased significantly from 7.5 +/- 4.9 mL (range, 1.7-20.0 mL) to 1.3 +/- 0.8 mL (range, 0.2-2.6 mL) 6 months after radiofrequency ablation (p = 0.001). There were no major complications of ablation. CONCLUSION: This study confirmed that radiofrequency ablation is effective for reducing nodule volume and relieving nodule-related clinical problems and that an effect due to spontaneous nodule reduction can be excluded owing to the results of the comparison with a similar control group.
intervention, radiofrequency ablation, thyroid, thyroid nodule
MESH
Adult, Aged, Biopsy, Case-Control Studies, *Catheter Ablation, Esthetics, Female, Humans, Male, Middle Aged, Prospective Studies, Statistics, Nonparametric, Thyroid Function Tests, Thyroid Nodule/radionuclide imaging/*surgery/ultrasonography, Treatment Outcome, *Ultrasonography, Interventional
¸µÅ©