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Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
Percutaneous renal cryoablation: experience treating 115 tumors
Thomas D Atwell1, Michael A Farrell, Bradley C Leibovich
1Department of Radiology, Mayo Clinic, Rochester, Minnesota 55902, USA. atwell.thomas@mayo.edu
The Journal of Urology
|April 22, 2008
Summary
Percutaneous renal cryoablation is a safe and feasible procedure for treating kidney tumors, including larger and anterior ones. Short-term outcomes show high technical success and no local progression in treated tumors.
Area of Science:
- Urology
- Interventional Radiology
- Oncology
Background:
- Renal tumors require effective and minimally invasive treatment options.
- Percutaneous cryoablation offers a less invasive approach to renal tumor ablation.
Purpose of the Study:
- To assess the technical feasibility, safety, and short-term outcomes of percutaneous renal cryoablation.
- To evaluate the success rates for various tumor sizes and locations.
Main Methods:
- Retrospective review of 115 renal tumors in 110 patients treated with percutaneous cryoablation.
- Analysis of tumor characteristics, hospital course, complications, and imaging follow-up.
- Biopsies were performed on 90 renal masses, with 58% confirming renal cell carcinoma.
Main Results:
- Mean tumor size was 3.3 cm; 29 tumors were ≥4.0 cm, and 21 were anterior.
- Technical success was 97% (112/115 tumors).
- 6% major complication rate; 100% treatment success with no local progression in 80 tumors (mean follow-up 13.3 months).
Conclusions:
- Percutaneous renal cryoablation is technically feasible and safe for renal tumors.
- Experience enables successful treatment of larger (≥4 cm) and anterior tumors.
- Long-term follow-up is essential to confirm treatment durability.
