Percutaneous radiofrequency ablation of renal cell carcinoma: preliminary results

Abstract

Purpose: To report early results in percutaneous radiofrequency ablation (RFA) of renal cell carcinoma with an expandable RF probe. Material and Methods: In 14 patients (9 male, mean age 67.9±9.9 years) CT‐guided percutaneous radiofrequency ablation of 15 renal cell carcinomas was performed using an expandable LeVeen probe (diameter 2–4 cm) and a 200‐watt generator under general anesthesia and CT control. Tumors exceeding a diameter of 3 cm ( n = 6) were embolized within 24 h prior to RFA. Average tumor size was 3.0±1.0 cm. Results: RFA was technically successful in all patients, resulting in a mean size of necrosis of 3.7±0.7 cm. With the exception of one reno‐cutaneous fistula, which was successfully treated conservatively, no major complications were observed. No local recurrence was observed (follow‐up: 13.9±12.4 months) while extrarenal tumor progression occurred in four patients. Conclusion: Our preliminary data suggest that nephron sparing percutaneous RFA of renal tumors with an expandable RF probe is safe and effective.