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BMC Urology
Published in: BMC Urology 1/2020

01-12-2020 | Computed Tomography | Research article

Prevalence of microhematuria in renal colic and urolithiasis: a systematic review and meta-analysis

Authors: Bruno Minotti, Giorgio Treglia, Mariarosa Pascale, Samuele Ceruti, Laura Cantini, Luciano Anselmi, Andrea Saporito

Published in: BMC Urology | Issue 1/2020

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Abstract

Background

This systematic review and meta-analysis aims to investigate the prevalence of microhematuria in patients presenting with suspected acute renal colic and/or confirmed urolithiasis at the emergency department.

Methods

A comprehensive literature search was conducted to find relevant data on prevalence of microhematuria in patients with suspected acute renal colic and/or confirmed urolithiasis. Data from each study regarding study design, patient characteristics and prevalence of microhematuria were retrieved. A random effect-model was used for the pooled analyses.

Results

Forty-nine articles including 15′860 patients were selected through the literature search. The pooled microhematuria prevalence was 77% (95%CI: 73–80%) and 84% (95%CI: 80–87%) for suspected acute renal colic and confirmed urolithiasis, respectively. This proportion was much higher when the dipstick was used as diagnostic test (80 and 90% for acute renal colic and urolithiasis, respectively) compared to the microscopic urinalysis (74 and 78% for acute renal colic and urolithiasis, respectively).

Conclusions

This meta-analysis revealed a high prevalence of microhematuria in patients with acute renal colic (77%), including those with confirmed urolithiasis (84%). Intending this prevalence as sensitivity, we reached moderate values, which make microhematuria alone a poor diagnostic test for acute renal colic or urolithiasis. Microhematuria could possibly still important to assess the risk in patients with renal colic.
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Metadata
Title
Prevalence of microhematuria in renal colic and urolithiasis: a systematic review and meta-analysis
Authors
Bruno Minotti
Giorgio Treglia
Mariarosa Pascale
Samuele Ceruti
Laura Cantini
Luciano Anselmi
Andrea Saporito
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Urology / Issue 1/2020
Electronic ISSN: 1471-2490
DOI
https://doi.org/10.1186/s12894-020-00690-7

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