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[Percutaneous kidney biopsy: eight years-experience].
Rui Castro1, Maria José Sequeira, Maria Sameiro Faria
1Serviço de Anatomia Patológica, Hospital Geral S. António, Porto.
Acta Medica Portuguesa
|January 8, 2005
Summary
Ultrasound-guided renal biopsy is a valuable diagnostic tool for kidney diseases, achieving an 84.6% diagnostic efficacy with low complication rates. This technique aids in diagnosing various nephrological conditions, improving patient outcomes.
Area of Science:
- Nephrology
- Diagnostic Imaging
- Pathology
Context:
- Renal biopsy is crucial for diagnosing and prognosticating kidney diseases and systemic conditions.
- This study reviews 91 renal biopsies performed between 1994 and 2002 at a single institution.
- Ultrasound guidance was consistently used, primarily with Vim-Silverman needles.
Purpose:
- To evaluate the diagnostic efficacy and complication rates of ultrasound-guided renal biopsies.
- To analyze the clinical indications and histological diagnoses of renal biopsies performed over an 8-year period.
- To identify predictors of renal function progression.
Summary:
- A total of 91 renal biopsies were analyzed, with indications including nephrotic syndrome, asymptomatic urinary abnormalities, and renal failure.
- The overall diagnostic efficacy was 84.6%, with common diagnoses being IgA nephropathy (Berger disease) and idiopathic nephrotic syndrome.
- Complications were infrequent, including gross hematuria in 9.9% of cases and one accidental spleen puncture; no nephrectomies were required.
Impact:
- Ultrasound-guided renal biopsy is confirmed as an effective and safe procedure for diagnosing kidney pathologies.
- Improved collaboration between nephrologists and radiologists enhanced procedural outcomes over time.
- Glomerulosclerosis and tubulointerstitial lesions were identified as predictors of advanced renal failure, informing prognosis and management.