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Management of renal tumors by image-guided radiofrequency ablation: experience in 105 tumors.

Abstract：

AIMS:In this article we present our experience with radiofrequency ablation (RFA) in the treatment of 105 renal tumors. MATERIALS AND METHODS:RFA was performed on 105 renal tumors in 97 patients, with a mean tumor size of 32 mm (11-68 mm). The mean patient age was 71.7 years (range, 36-89 years). The ablations were carried out under ultrasound (n = 43) or CT (n = 62) guidance. Imaging follow-up was by contrast-enhanced CT within 10 days and then at 6-monthly intervals. Multivariate analysis was performed to determine variables associated with procedural outcome. RESULTS:Eighty-three tumors were completely treated at a single sitting (79%). Twelve of the remaining tumors were successfully re-treated and a clinical decision was made not to re-treat seven patients. A patient with a small residual crescent of tumor is under follow-up and may require further treatment. In another patient, re-treatment was abandoned due to complicating pneumothorax and difficult access. One patient is awaiting further re-treatment. The overall technical success rate was 90.5%. Multivariate analysis revealed tumor size to be the only significant variable affecting procedural outcome. (p = 0.007, Pearson chi(2)) Five patients had complications. There have been no local recurrences. CONCLUSION:Our experience to date suggests that RFA is a safe and effective, minimally invasive treatment for small renal tumors.

journal_name

Cardiovasc Intervent Radiol

journal_title

Cardiovascular and interventional radiology

authors

Breen DJ,Rutherford EE,Stedman B,Roy-Choudhury SH,Cast JE,Hayes MC,Smart CJ

doi

10.1007/s00270-007-9090-x

subject

Has Abstract

pub_date

2007-09-01 00:00:00

pages

936-42

issue

5

eissn

0174-1551

issn

1432-086X

journal_volume

30

pub_type

杂志文章

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