ABSTRACT
Objective To evaluate the effectiveness ,safety and prospect of ultrasound-guided radiofrequency ablation (RFA) in treatment of thyroid benign nodules .Methods We analyzed 153 patients with thyroid benign nodules from September 2015 to August 2016 treated by RFA at Department of Thyroid Surgery ,the First Affiliated Hospital of Zhengzhou University . One month later , we reviewed the thyroid functions after the operation , observed the changes of the nodules after 1 ,3 ,and 6 months ,calculated the volume reduction rate of the nodules , and analyzed the effectiveness of the treatment .Results After treatment ,the maximum diameter and volume of the nodules were significantly reduced in all the patients ( P<0 .05) .The patients' symptoms improved significantly without serious complications . Conclusion Ultrasound-guided RFA has obvious advantages such as fewer complications , less invasiveness , good safety , and definite effectiveness in treating thyroid benign nodules . Therefore ,it has promising prospects in clinical application .
ABSTRACT
Objective To evaluate therapeutic effects of radiofrequency ablation for thyroid benign nodules . Methods By using the radiofrequency electrode (18G ×7 cm, working segment length =1 cm), a total of 61 patients with 87 thyroid benign nodules underwent ultrasound-guided radiofrequency ablation in our department from February 2013 to May 2014.The maximum diameter , volume, and volume-reduction ratio (VRR) were measured by ultrasound at 1, 3, 6, and 12 months after operation. Results The 61 patients with 87 thyroid benign nodules were successfully treated with radiofrequency ablation , including 3 cases receiving secondary ablation after 1 month.The maximum diameter of thyroid nodules was (2.24 ±0.63) cm preoperatively, and (1.82 ±0.81) cm, (1.52 ±0.72) cm, (1.03 ±0.43) cm, and (0.56 ±0.36) cm at 1, 3, 6, and 12 months after ablation, respectively.The maximun volume was (5.37 ±1.85) ml preoperatively, and (4.41 ±2.16) ml, (3.19 ±1.92) ml, (1.34 ±0.61) ml, and (0.69 ±0.41) ml at 1, 3, 6, and 12 months after ablation, respectively.The VRR were (20.7 ±13.2)%, (48.6 ±16.1)%, (77.3 ±4.7)%and (88.7 ±5.6)%, respectively at 1,3,6, and 12 months after ablation.At the final follow-up, 51 (58.6%) nodules disappeared completely. Conclusion Ultrasound guided radiofrequency ablation for thyroid benign nodules is safe and effective .