title: Renal biopsy with 16G needle: a safety study.
abstract: OBJECTIVE
  The development of percutaneous renal biopsy as a routinary diagnostic procedure for renal masses is topic of discussion for the last few years. However, this technique has been associated with some complications, although infrequent, and morbidity. Our objective is to carry out a descriptive study about complications and outcomes of orthotopic kidney biopsies with 16 G needle.
  
  
  METHODS
  A retrospective review of 180 orthotopic ultrasound-guided renal biopsies performed in our service among January 2008 to May 2010 was carried out. The procedure was developed using an automated biopsy gun (16G needle). Multiple clinical variables, early post-procedure complications and its management were collected. Complication rates as well as the relationship between risk factors and occurrence of complications were studied.
  
  
  RESULTS
  Mean age 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=.09) previous anticoagulation (P=.099) or previous antiaggregation (P=.603) and complications were 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.
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España. Electronic address: felixguerrero@gmail.com.
authors.forename: F
authors.initials: F
authors.lastname: Guerrero-Ramos
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: F
authors.initials: F
authors.lastname: Villacampa-Aubá
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: E
authors.initials: E
authors.lastname: Jiménez-Alcaide
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: L
authors.initials: L
authors.lastname: García-González
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: I A
authors.initials: IA
authors.lastname: Ospina-Galeano
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: F
authors.initials: F
authors.lastname: de la Rosa-Kehrmann
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: A
authors.initials: A
authors.lastname: Rodríguez-Antolín
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: J
authors.initials: J
authors.lastname: Passas-Martínez
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: R
authors.initials: R
authors.lastname: Díaz-González
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000009:adverse effects*; D004867:Equipment Design; D006801:Humans; D061705:Image-Guided Biopsy; D007668:Kidney / Q000473:pathology*; D007674:Kidney Diseases / Q000473:pathology*; D008875:Middle Aged; D012189:Retrospective Studies; D014463:Ultrasonography; D055815:Young Adult
keywords: Biopsia; Biopsy; Kidney; Riñón; Safety; Seguridad