Abstract
Purpose
To evaluate the safety and efficacy of percutaneous radiofrequency ablation (RFA) for localised renal cell carcinoma (RCC) and examine potential associations between age, gender, tumour size, location, chronic kidney disease, comorbidities, learning curve and local recurrence.
Methods
We retrospectively analysed survival outcomes for patients with biopsy-proven RCC treated by RFA at Westmead Hospital. Complication data were gathered from all patients that underwent renal RFA. 3 and 5 year local recurrence-free (RFS), disease-free (DFS) and overall survival (OS) outcomes were reported. Univariate and multivariate analysis was used to examine each potential predictor.
Results
A total of 168 patients were eligible for the study. Forty-eight patients with biopsy-proven RCC had minimum 3-year follow-up. Our complication rate was 1.2 % (2/168) and local recurrence rate 10.4 % (5/48). Five-year RFS, DFS and OS were 86.8, 82.3 and 92.6 % on a median 4.1-year follow-up (IQR 3.4–4.9). None of the patient or tumour-specific characteristics were associated with RFS.
Conclusion
Radiofrequency ablation performed at our centre was a safe and effective procedure with low complication rates and durable RFS. Tumour characteristics, comorbidities and learning curve were not associated with local recurrence.
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Acknowledgments
We thank Ms. Pamela Dougan for her invaluable efforts as data administrator, Ms. Karen Byth for her assistance with statistical analysis and Dr. Philip Vladica for acting as the guarantor for this paper.
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Michael Su, Fatima Memon, Howard Lau, Andrew Brooks, Manish Patel, Henry Woo, Simon Bariol and Philip Vladica declares that they have no conflict of interest.
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This study did not receive any funding.
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All procedures performed in the study involving human participants were in accordance with the ethical standards of the institutional human research ethics committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Su, M.Z., Memon, F., Lau, H.M. et al. Safety, efficacy and predictors of local recurrence after percutaneous radiofrequency ablation of biopsy-proven renal cell carcinoma. Int Urol Nephrol 48, 1609–1616 (2016). https://doi.org/10.1007/s11255-016-1355-3
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DOI: https://doi.org/10.1007/s11255-016-1355-3