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Vol. 38. Issue 9.
Pages 584-588 (November 2014)
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Vol. 38. Issue 9.
Pages 584-588 (November 2014)
Original article
Renal biopsy with 16G needle: A safety study
Estudio de seguridad de la biopsia renal percutánea con aguja de caliber 16G
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265
F. Guerrero-Ramos
Corresponding author
felixguerrero@gmail.com

Corresponding author.
, F. Villacampa-Aubá, E. Jiménez-Alcaide, L. García-González, I.A. Ospina-Galeano, F. de la Rosa-Kehrmann, A. Rodríguez-Antolín, J. Passas-Martínez, R. Díaz-González
Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, Spain
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Tables (3)
Table 1. Indications for orthotopic renal biopsy.
Table 2. Relationship of personal medical history.
Table 3. Relationship between risk factors and complications.
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Abstract
Introduction and objective

The development of percutaneous renal biopsy as a routine diagnostic procedure for renal masses has been the topic of discussion for the last few years. However, this technique has been associated with some complications, although infrequent, and morbidity. Our objective was to carry out a descriptive study about the complications and outcomes of orthotopic kidney biopsies with 16G needle.

Material and methods

A retrospective review of 180 orthotopic ultrasound-guided renal biopsies performed in our service from January 2008 to May 2010 was carried out. The procedure was developed using an automated biopsy gun (16G needle). Data on multiple clinical variables, early post-procedure complications and renal biopsy management were collected. Complication rates as well as the relationship between risk factors and occurrence of complications were studied.

Results

Mean age of the subjects was 55.8 years. The average number of biopsy cylinders per intervention was 2.49. The overall complication rate was 5.6%. An interventionist attitude derived from complication of the procedure was necessary in only 3 patients (1.67%). No surgical interventions were required and no death as consequence of procedure was registered. No relationship between hypertension (p=0.09), previous anticoagulation (p=0.099) or previous antiaggregation (p=0.603) and complications was demonstrated. In 2.8% of biopsies the material obtained was insufficient for diagnosing.

Conclusions

Percutaneous ultrasound-guided renal biopsy with 16G needle is a safe technique with high diagnostic performance.

Keywords:
Kidney
Biopsy
Safety
Resumen
Introducción y objetivo

Recientemente se vuelve a discutir sobre la implantación de la biopsia renal percutánea como procedimiento rutinario en el diagnóstico de masas renales. Sin embargo, aunque infrecuentes, esta técnica no está exenta de complicaciones y morbilidad. Nuestro objetivo es realizar un estudio descriptivo de las complicaciones y resultados de las biopsias renales ortotópicas con aguja de 16G.

Material y métodos

Llevamos a cabo una revisión retrospectiva de 180 biopsias renales ortotópicas ecodirigidas realizadas en nuestro servicio entre enero de 2008 y mayo de 2010. La técnica se realiza utilizando una aguja de diámetro 16G acoplada a una pistola automática. Se recogen múltiples variables clínicas, así como las complicaciones tempranas derivadas del procedimiento y la actitud adoptada respecto a ellas. Se estudió la tasa de complicaciones, así como la relación entre factores de riesgo y aparición de complicaciones.

Resultados

La edad media fue de 55,8 años, obteniéndose una media de 2,49 cilindros por intervención. La tasa global de complicaciones fue del 5,6%. Únicamente en 3 (1,67%) pacientes de los 180 fue necesaria una actitud intervencionista derivada de complicación del procedimiento. No hubo necesidad de intervenciones quirúrgicas ni se produjeron fallecimientos derivados del procedimiento. No se demostró relación entre HTA (p=0,09), anticoagulación previa (p=0,099) o antiagregación previa (p=0,603) y complicaciones. El 2,8% de las biopsias presentaron material insuficiente para el diagnóstico.

Conclusiones

La biopsia renal percutánea ecodirigida con aguja de 16G es una técnica segura y con una rentabilidad diagnóstica elevada.

Palabras clave:
Riñón
Biopsia
Seguridad

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