title: Retrospective Analysis of Ultrasound-Detected Bleeding Complications after Ultrasound-Guided Transcutaneous Kidney Biopsies.
abstract: The aim of this retrospective single-center study was to examine ultrasound-detected complications after diagnostic parenchymal renal biopsies. After 471 ultrasound-guided kidney biopsies (225 native kidneys and 246 renal allografts), ultrasound revealed hematomas (21.9%), arterio-venous fistulas (8.9%), active bleeding (1.1%) and hematuria (0.4%). Only 0.8% of all patients required invasive intervention such as coiling (n = 3) and surgical procedures (n = 1). Three episodes of bleeding (0.6%) were solved with manual compression. One patient (0.2%) needed an irrigation catheter because of hematuria. Furthermore, six patients (1.3%) received blood transfusion. Ultrasound-guided biopsies are safe. With modern ultrasound machines using multi-frequency transducers with high resolution and harmonic imaging, even marginal bleeding after renal biopsy is detected.
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany. Electronic address: stephanie.lefeldt@lrz.tum.de.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Preuss
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
authors.forename: Claudius
authors.initials: C
authors.lastname: Kuechle
authors.affiliation: Institute of Medical Biometry, Epidemiology and Medical Informatics, Universitätsklinikum des Saarlandes, Homburg/Saar, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Wagenpfeil
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Schmaderer
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
authors.forename: Lutz
authors.initials: L
authors.lastname: Renders
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
authors.forename: Uwe
authors.initials: U
authors.lastname: Heemann
authors.affiliation: Department of Nephrology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
authors.forename: Konrad
authors.initials: K
authors.lastname: Stock
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy / Q000009:adverse effects; D005260:Female; D006470:Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014463:Ultrasonography / Q000379:methods*; D018084:Ultrasonography, Interventional / Q000379:methods; D055815:Young Adult
keywords: Biopsy; Complication; Kidney; Ultrasound