Abstract
Purpose
To retrospectively evaluate the clinical outcomes of percutaneous ultrasound (US)-guided radiofrequency ablation (RFA) in treatment of adrenal metastasis (AM), and to compare with adrenalectomy (Adx).
Methods
From June 2008 to August 2018, a total of 60 patients with AM treated at our hospital were retrospectively reviewed, of whom 29 treated by RFA (RFA group) and 31 by Adx (Adx group). The technical success, local tumor progression (LTP) and overall survival (OS) after the treatment were evaluated and compared.
Results
In RFA group, the first technical success was 72.4% and the second technical success was 86.2%. In Adx group, all the AMs were successfully resected. After 24.5 ± 19.1 months follow-up period, a total of 8 patients (6 in RFA group and 2 in Adx group) were detected LTP. The 1-, 2- and 3- LTP rates after treatment were 17.1%, 30.9% and 44.7% in RFA group, and 6.5%, 6.5% and 6.5% in Adx group, respectively (P = 0.028). However, for AM ≤ 5 cm, the LTP between the two groups were comparable (P = 0.068). The 1-, 2- and 3- OS rates after treatment for AM were 85.0%, 42.4% and 27.8% in RFA group, and 93.0%, 66.1% and 52.3% in Adx group, respectively (P = 0.057). RFA offered shorter treatment time (23.6 ± 16.9 vs. 155.6 ± 58.8 min, P < 0.001), shorter hospital stay (7.8 ± 3.9 vs. 15.0 ± 4.9 days, P < 0.001), and lower hospital cost ($3405.7 ± 1067.8 vs. $5248.0 ± 2261.3, P = 0.003) than Adx.
Conclusion
In comparison with Adx, percutaneous US-guided RFA, as an alternative treatment, is feasible and effective in controlling AM, especially in AM ≤ 5 cm in diameter.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 81701708 and 81530055); Natural Science Foundation of Guangdong Province (Grant No. 2017A030310205); and Training Project for Young Teacher of Sun Yat-sen University (Grant No. 18ykpy10).
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This retrospective study was carried out according to the guidelines of the Helsinki Declaration.
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The study was approved by the Ethical Committee of the First Affiliated Hospital of Sun Yat-sen University (Guangzhou, China).
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All the patients signed an informed consent to be enrolled in the study and to perform the RFA procedure.
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Liu, B., Mo, C., Wang, W. et al. Treatment outcomes of percutaneous radiofrequency ablation versus adrenalectomy for adrenal metastases: a retrospective comparative study. J Endocrinol Invest 43, 1249–1257 (2020). https://doi.org/10.1007/s40618-020-01212-w
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DOI: https://doi.org/10.1007/s40618-020-01212-w