Radiofrequency Ablation of Renal Tumors: Four-Year Follow-Up Results in 47 Patients
Korean Journal of Radiology
; : 625-633, 2012.
Article
em En
| WPRIM
| ID: wpr-228970
Biblioteca responsável:
WPRO
ABSTRACT
OBJECTIVE:
To retrospectively evaluate the intermediate results of radiofrequency ablation (RFA) of small renal masses (SRMs). MATERIALS ANDMETHODS:
Percutaneous or laparoscopic RFA was performed on 48 renal tumors in 47 patients. The follow-up studies included a physical examination, chest radiography, creatinine level, and contrast-enhanced CT or MRI. To confirm the pathologic criteria of complete ablation, 35 patients underwent a follow-up biopsy. Recurrence was defined as contrast enhancement on imaging studies after 3 months, lesion growth at subsequent imaging, or viable cancer cells on follow-up biopsy.RESULTS:
Technical success was achieved in 43 (89.6%) of 48 renal tumors. The mean tumor size was 2.3 cm and the mean follow-up period was 49.6 months. Repeated RFA was necessary in 5 tumors due to incomplete ablation. The overall complication rate was 35.8%, of which 96.2% were mild complications. Serum creatinine levels at 12 months after RFA did not differ from those before RFA (1.28 vs. 1.36 mg/dL). Four patients were found to have recurrence at various follow-up intervals, and distant metastasis was not found in any cases.CONCLUSION:
RFA appears to be a useful treatment for selected patients with SRMs. Our 4-year follow-up results disclose an excellent therapeutic outcome with RFA, while achieving effective local tumor control.Palavras-chave
Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Complicações Pós-Operatórias
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Reoperação
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Imageamento por Ressonância Magnética
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Radiografia Torácica
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Tomografia Computadorizada por Raios X
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Estudos Retrospectivos
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Seguimentos
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Resultado do Tratamento
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Ablação por Cateter
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Laparoscopia
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
Idioma:
En
Revista:
Korean Journal of Radiology
Ano de publicação:
2012
Tipo de documento:
Article