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International Urology and Nephrology

, Volume 48, Issue 10, pp 1609–1616 | Cite as

Safety, efficacy and predictors of local recurrence after percutaneous radiofrequency ablation of biopsy-proven renal cell carcinoma

  • Michael Z. Su
  • Fatima Memon
  • Howard M. Lau
  • Andrew J. Brooks
  • Manish I. Patel
  • Henry H. Woo
  • Simon V. Bariol
  • Philip Vladica
Urology - Original Paper

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.

Keywords

Percutaneous ablation Radiofrequency ablation Carcinoma, renal cell Neoplasm recurrence, local Oncological outcomes 

Notes

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.

Compliance with ethical standards

Conflict of interest

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.

Funding

This study did not receive any funding.

Ethical approval

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.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  • Michael Z. Su
    • 1
  • Fatima Memon
    • 3
  • Howard M. Lau
    • 2
  • Andrew J. Brooks
    • 2
  • Manish I. Patel
    • 2
  • Henry H. Woo
    • 4
  • Simon V. Bariol
    • 2
  • Philip Vladica
    • 3
  1. 1.Department of SurgeryUniversity of Sydney, Westmead HospitalWestmeadAustralia
  2. 2.Department of UrologyWestmead HospitalSydneyAustralia
  3. 3.Department of RadiologyWestmead HospitalSydneyAustralia
  4. 4.Sydney Medical SchoolUniversity of SydneyWahroongaAustralia

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