Current oncologic applications of radiofrequency ablation therapies

Table 5 Studies involving survival after radiofrequency ablation for solid renal tumors

Ref.	Patients (tumors) n	Method	Mean tumor size (cm)	RCC	Complete first ablation	Recurrence free survival	Overall survival (yr)			Cancer specific survival (yr)		Complications
							1	3	5	3	5
Tracy et al[69]	208 (243)	P, L, O	2.4	79%	97%	90% at 3 yr2	99%1	93%1	85%	95% for RCC	99% for RCC	NR
Levinson et al[70]	31 (34)	P, L	2.1	58%	91%	80% at 5 yr2	NR	NR	63% for all358% for RCC4	NR	100% for all 100% for RCC	4 for perinephric hematoma ; 1 for liver burn; 1 for death from pneumonia
Zagoria et al[71]	41 (48)	P	2.6	100%	NR	88% at 5 yr	NR	NR	66%	NR	NR	2 for pneumothorax no drainage; 2 for ureteral strictures
Stern et al[72]	40	P, L	2.4	81%	97%	91% at 3 yr2	NR	NR	NR	100% for RCC	NR	2 for minor; 3 for major

¹Calculated based on Kaplan-Meier curve and life table;

²In biopsy proven renal cell carcinoma (RCC);

³80 mo overall survival;

⁴57 mo overall survival. P, L, O: Percutaneous, laparoscopic, open; NR: Not reported.