Abstract：
OBJECTIVES:To assess the long-term oncological efficacy of radiofrequency ablation (RFA) for treatment of renal cell carcinoma (RCC). METHODS:In this institutional review board-approved, retrospective study, the records and imaging studies for all RCC patients treated with percutaneous RFA before 2005 were reviewed and analyzed. RESULTS:A total of 48 RCCs in 41 patients were treated with RFA. Median size of RCC treated was 2.6 cm (range: 0.7-8.2 cm). Of the 48 treated RCCs, 5 (12%) had recurrent tumor after a single ablation session. The median size of the index lesion in the cases with recurrence was 5.2 cm (interquartile range [IQR]: 4-5.3) compared with 2.2 cm (IQR: 1.7-3.1, P = .0014) without local recurrence. There were no recurrences when RCCs less than 4 cm were treated. Seventeen (41%) patients with 18 treated RCCs died during the follow-up period at a median time of 34 (IQR: 10-47) months. One patient (2%) died of metastatic RCC, whereas 16 died of unrelated causes. Twenty-four patients with 30 RCCs treated with RFA survived. For the remaining 30 RCCs, median follow up was 61 months (IQR: 54-68). No patients in this group of survivors had metastatic RCC, 1 had recurrence diagnosed at 68 months. The long-term recurrence-free survival rate was 88% after RFA. CONCLUSIONS:RFA can result in durable oncological control for RCCs less than 4 cm. RFA is an effective treatment option for patients with RCCs less than 4 cm who are poor surgical candidates. For patients with larger RCCs alternative treatments should be considered.
journal_name
Urologyjournal_title
Urologyauthors
Zagoria RJ,Pettus JA,Rogers M,Werle DM,Childs D,Leyendecker JRdoi
10.1016/j.urology.2010.12.077subject
Has Abstractpub_date
2011-06-01 00:00:00pages
1393-7issue
6eissn
0090-4295issn
1527-9995pii
S0090-4295(11)00141-5journal_volume
77pub_type
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