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Vol. 34. Issue 10.
Pages 860-865 (January 2010)
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Vol. 34. Issue 10.
Pages 860-865 (January 2010)
Radiofrequency ablation as an alternative treatment for organ confined renal tumor
Ablación con radiofrecuencia como alternativa de tratamiento para el tumor renal localizado
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D. Gallego Vilara,
Corresponding author
dagalvi@hotmail.com

Corresponding author.
, I. José Povo Martina, J. Miralles Aguadoa, C. Garau Perellóa, M. Bosquet Sanza, V. Gimeno Argentea, M. Cifriánb, J. García Vilab, J. Gallego Gómeza
a Servicio de Urología, Hospital General de Castellón, Castellón de la Plana, Spain
b Unidad de Radiología Intervencionista, Hospital General de Castellón, Castellón de la Plana, Spain
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Abstract
Introduction

We report our early clinical experience associated with radiofrequency (RF) ablation in patients with renal cell carcinoma (RCC) and evaluate the efficacy, tolerability and complicactions.

Material and methods

Retrospective review of patients treated in our hospital with kidney ecoguide RF. All of them diagnosed with renal tumor and not candidates for surgery because of bilateral tumor, significant comorbidity or refusal to surgical treatment. We used an Amitech® 220 Watts generator with an electrode tip of 3cm, needles with a straight tip and a hooked tip. Controls were performed with axial tomography at 24h, 7 days, 1, 3 and 6 months and every 6 months thereafter.

Results

11 tumors were found in 9 patients. The mean age was 76 years (63–85 years). The average tumor size was 3.5cm (2.2–5.8cm). In 2 tumors prior chemoembolization was needed. In a further two a new RF session was needed. In 9 tumors treatment was considered effective. Mean follow-up was 17.5 months (3–52 months). One patient had local recurrence at 14 months and needed a laparoscopic radical nephrectomy and two patients developed lung metastases 41.5 months after RF. There were no clinically relevant complications.

Conclusions

In our experience, we believe that RF is considered an alternative treatment for renal tumors with clinical stage T1 or T2 very symptomatic in patients in whom surgery is not possible, with acceptable results in the medium term, a good tolerance, reduced consumption of hospital resources and low complication rate.

Keywords:
Renal tumor
Radiofrequency
Minimally invasive ablative techniques
Resumen
Introducción

Presentamos nuestra serie inicial de tumores renales tratados mediante radiofrecuencia (RF) continua percutánea y evaluamos la eficacia, la tolerabilidad y las complicaciones de la técnica.

Material y métodos

Revisión retrospectiva de los pacientes tratados en nuestro hospital con RF renal ecoguiada. Todos diagnosticados de tumor renal y no candidatos a cirugía por tumor bilateral, comorbilidad importante o rechazo al tratamiento quirúrgico. Utilizamos un generador Amitech® de 220W con una punta de electrodo de 3cm, agujas de punta recta y en gancho. Los controles fueron realizados mediante una tomografía computarizada toracoabdominopélvica a las 24h, a los 7 días, al mes, a los 3 meses y a los 6 meses, y cada 6 meses después.

Resultados

Se hallaron 11 tumores en 9 pacientes. La media de edad fue de 76 años (63–85). La media de tamaño tumoral fue de 3,5cm (2,2–5,8). En 2 tumores se necesitó de quimioembolización previa y en otros dos se necesitó una nueva sesión de RF. Hubo 9 tumores con tratamiento considerado como eficaz. La media de seguimiento fue de 17,5 meses (3–52). Un paciente tuvo persistencia de enfermedad a los 3 meses con necesidad de nefrectomía radical laparoscópica y otros dos tuvieron metástasis pulmonares a los 26,5 meses de media. No hubo complicaciones relevantes clínicamente.

Conclusiones

En nuestra experiencia, estimamos que la RF es un tratamiento considerado como una alternativa para los tumores renales de estadio clínico T1 o T2 muy sintomáticos, en pacientes en los que no es posible la cirugía, con unos resultados aceptables a medio plazo, una buena tolerancia, un escaso consumo de recursos hospitalarios y un bajo índice de complicaciones.

Palabras clave:
Tumor renal
Radiofrecuencia
Tratamiento mínimamente invasivo

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