[Isolated microhematuria: biopsy, yes or no?]
Cristiana Rollino1, Giulietta Beltrame, Michela Ferro
1Nefrologia e Dialisi, Ospedale S. Giovanni Bosco, Torino, Italy. critiana.rollino@libero.it
Summary
Isolated asymptomatic hematuria lacks clear evaluation guidelines. Investigations should target specific causes in children and adults, with renal biopsy considered cautiously for progressive disease or parental concern.
Area of Science:
- Nephrology
- Urology
- Internal Medicine
Context:
- Isolated asymptomatic hematuria is a common clinical finding with no standardized diagnostic or management protocols.
- Current practices involve debate over necessary investigations and the utility of renal biopsy.
Purpose:
- To outline recommended evaluation and management strategies for isolated asymptomatic hematuria in both pediatric and adult populations.
- To address the controversy surrounding diagnostic testing and the indications for renal biopsy.
Summary:
- In children, renal biopsy is considered for progressive renal disease or parental anxiety. Adult evaluations should exclude drug-induced causes, endemic infections (Schistosoma haematobium, tuberculosis), sickle-cell disease, endometriosis, and malignancy in those over 40.
- Urinary sediment analysis aids in determining the hematuria's origin.
- Patients undergoing renal biopsy must be fully informed about potential complications, including the possibility of normal findings.
Impact:
- Provides a framework for clinicians managing patients with isolated asymptomatic hematuria.
- Aims to reduce diagnostic uncertainty and optimize patient care pathways.
- Highlights the importance of patient education regarding renal biopsy risks and outcomes.
