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  • Title: The need for repeated urological evaluation in low-risk patients with microscopic hematuria after negative diagnostic work-up.
    Author: Pichler R, Heidegger I, Leonhartsberger N, Stöhr B, Aigner F, Bektic J, Horninger W, Steiner H.
    Journal: Anticancer Res; 2013 Dec; 33(12):5525-30. PubMed ID: 24324092.
    Abstract:
    AIM: To evaluate the role of repeated urological evaluation after negative initial diagnostic work-up of asymptomatic microhematuria (AMH) in low-risk patients. PATIENTS AND METHODS: Criteria for patient inclusion were a complete negative initial diagnostic assessment including ultrasound (US), cystoscopy, upper urinary tract (UUT) imaging using intravenous urography (IVU) or multiphasic computed tomography (CT), absence of risk factors and a follow-up period of at least three years. Based on our institutional practice, urinalysis was repeated yearly; cystoscopy with US was repeated three years after initial work-up. The oncological outcome was evaluated across a mean follow-up of 8 (range: 3.7-10.2) years. RESULTS: A case series of 87 (32.2% of 270) low-risk patients, 56 women and 31 men, with a mean age of 52.4 (range: 19-87) years was studied. Three years after initial work-up, cystoscopy confirmed no bladder carcinoma in any of these 87 patients. Prostate cancer was diagnosed in one (1.1%) patient. In five (5.6%) patients, nephrological evaluation due to concomitant proteinuria on follow-up demonstrated chronic renal insufficiency (n=3), IgA nephropathy (n=1) and papillary necrosis of the kidney (n=1). CONCLUSION: Low-risk patients with persistent AMH after negative urological evaluation have a neglectable risk of developing bladder cancer on follow-up. Newly-discovered proteinuria on follow-up should be clarified by a nephrologist, as proteinuria could be a sign of significant glomerular disease.
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