Minimally Invasive Treatment in Kidney Tumors: Initial Experience in Radiofrequency- Ablation

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Objective: In this study, we aimed to present our initial results in radiofrequency ablation of kidney tumors (RFTA). Material and Methods: In 2011-2012, the data of 5 patients who underwent RFTA were evaluated. The RFTA applications were performed by ultrasound guided percutaneous technique (USG-RFTA) in 4 patients and by retroperitoneally laparoscopic technique in 1 under general anesthesia. Previously, a routine renal mass biopsy was applied. Patients were radiologically controlled at 1., 3., 6., 12. months and then annually. The presence of viable tumor at 1st month was accepted as the residue and at subsequent controls after 1st was accepted as recurrence. The presence of residual tumor at 1st control was evaluated as the failure. Results: The mean age was 65.2 ±10.2 years and the mean tumor size was 27.6±4.34 mm. 3 apllicaitons were left-sided and 2 were right-sided. One of right-sided aplication was performed in a partially nephrectomized solitary kidney. All biopsies demonstrated renal cell carcinoma. The presence of residue at 1st month control (the failure) was determined in 2(40%) USG-RFTA cases. The success rate was estimated as 60%. USG-RFTA repeated in the failed cases. Subsequently, one was controlled at 1st month and no residual tumor was determined . The other was not evaluated yet. The mean follow-up duration without any recurrence was 11.4±6.65 months. No complication related to the application was occurred. Conclusion: The RFTA application seems to be safe, less invasive and effective treatment modality in selected cases of renal tumors.

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Kidney tumor , radiofrequency ablation , ultrasound , laparoscopy

Kocatepe Medical Journal

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Kocatepe Medical Journal