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Vol. 40. Issue 4.
Pages 263-267 (May 2016)
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Vol. 40. Issue 4.
Pages 263-267 (May 2016)
Skill and talent
Surgical technique for en bloc transurethral resection of bladder tumor with a Hybrid Knife®
Técnica quirúrgica de la resección transuretral de tumor vesical en bloque con Hybrid Knife®
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J.J.O. Islas-Garcíaa,
Corresponding author
oswaldoislas_mc@hotmail.com

Corresponding author.
, J.G. Campos-Salcedob, B.I. López-Benjumed, J.J. Torres-Gómezc, J. Aguilar-Colmeneroa, I.A. Martínez-Alonsoa, S.A. Gil-Villaa
a Residente de Especialidad en Urología, Escuela Militar de Graduados de Sanidad, México, México, D.F., Mexico
b Jefe del Servicio de Urología, Hospital Central Militar, México, México, D.F., Mexico
c Adscrito al Servicio de Urología, Hospital Central Militar, México, México, D.F., Mexico
d Adscrito al Área de Medicina Interna, Hospital Central Militar, México, México, D.F., Mexico
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Abstract
Background

Bladder cancer is the second most common malignancy of the urinary tract and the 9th worldwide. Latin American has an incidence of 5.6 per 100,000 inhabitants per year. Seventy-five percent of newly diagnosed cases are nonmuscle invasive bladder cancer, and 25% of cases present as muscle invasive. The mainstay of treatment for nonmuscle invasive bladder cancer is loop transurethral resection. In 2013, the group led by Dr Mundhenk of the University Hospital of Tübingen, Germany, was the first to describe the Hybrid Knife® equipment for performing en bloc bladder tumor resection, with favorable functional and oncological results.

Objective

To describe the surgical technique of en bloc bladder tumor resection with a Hybrid Knife® as an alternative treatment for nonmuscle invasive bladder tumors.

Material and methods

A male patient was diagnosed by urotomography and urethrocystoscopy with a bladder tumor measuring 2×1cm on the floor. En bloc transurethral resection of the bladder tumor was performed with a Hybrid Knife®.

Results

Surgery was performed for 35min, with 70W for cutting and 50W for coagulation, resecting and evacuating en bloc the bladder tumor, which macroscopically included the muscle layer of the bladder. There were no complications.

Conclusion

The technique of en bloc bladder tumor resection with Hybrid Knife® is an effective alternative to bipolar loop transurethral resection. Resection with a Hybrid Knife® is a procedure with little bleeding and good surgical vision and minimizes the risk of bladder perforation and tumor implants. The procedure facilitates determining the positivity of the neoplastic process, vascular infiltration and bladder muscle invasion in the histopathology study.

Keywords:
Hybrid Knife®
En bloc transurethral resection of bladder tumor
Resumen
Antecedentes

El cáncer vesical es la segunda malignidad más común del tracto urinario y la novena a nivel mundial, en Latinoamérica con incidencia de 5.6 por cada 100.000 habitantes por año. El 75% de casos nuevos diagnosticados son cáncer vesical no músculo invasivos y el 25% se presenta con invasión muscular. El pilar del tratamiento del cáncer vesical no músculo invasivo es la resección transuretral con asa. En 2013 el grupo del Dr. Mundhenk del Hospital Universitario de Tübingen, Alemania, fueron los primeros en describir el equipo Hybrid Knife® para realizar resección de tumor vesical en bloque con resultados funcionales y oncológicos favorables.

Objetivo

Describir la técnica quirúrgica de resección de tumor vesical en bloque con Hybrid Knife® como alternativa de tratamiento para los tumores vesicales no músculo invasivos.

Material y métodos

Varón con tumor vesical diagnosticado por urotomografía y uretrocistoscopia de 2×1cm en piso, se realizó resección transuretral de tumor vesical en bloque con Hybrid Knife®.

Resultados

Se realizó cirugía, en 35min, con 70 watts en corte y 50 watts en coagulación, resecando y evacuando en bloque el tumor vesical incluyendo macroscópicamente capa muscular de la vejiga, sin complicaciones.

Conclusión

La técnica de resección de tumor vesical en bloque con Hybrid Knife® es una alternativa eficaz a la resección transuretral con asa bipolar. La resección con Hybrid Knife® es un procedimiento con escaso sangrado, buena visión quirúrgica, minimizando el riesgo de perforación vesical o implantes tumorales con mayor facilidad para lograr determinar positividad de proceso neoplásico, infiltración vascular e invasión a músculo vesical en estudio histopatológico.

Palabras clave:
Cuchilla híbrida Hybrid Knife®
Resección transuretral de tumor vesical en bloque

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