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FlowUTI: An interactive web-application for optimizing the use of flow cytometry as a screening tool in urinary tract infections

Authors

MARTÍN GUTIÉRREZ, GUILLERMO, Martin-Perez, Carlos , Toledo, Hector , Sanchez-Cantalejo, Emilio , Lepe, Jose Antonio

External publication

No

Means

PLoS ONE

Scope

Article

Nature

Científica

JCR Quartile

SJR Quartile

JCR Impact

3.7

SJR Impact

0.885

Publication date

08/11/2022

ISI

000894053200022

Abstract

Due to the high prevalence of patients attending with urinary tract infection (UTI) symptoms, the use of flow-cytometry as a rapid screening tool to avoid unnecessary cultures is becoming a widely used system in clinical practice. However, the recommended cut-points applied in flow-cytometry systems differ substantially among authors, making it difficult to obtain reliable conclusions. Here, we present FlowUTI, a shiny web-application created to establish optimal cut-off values in flow-cytometry for different UTI markers, such as bacterial or leukocyte counts, in urine from patients with UTI symptoms. This application provides a user-friendly graphical interface to perform robust statistical analysis without a specific training. Two datasets are analyzed in this manuscript: one composed of 204 urine samples from neonates and infants (<= 3 months old) attended in the emergency department with suspected UTI; and the second dataset including 1174 urines samples from an elderly population attended at the primary care level. The source code is available on GitHub (https://github.com/GuillermoMG-HUVR/Microbiology-applications/tree/FlowUTI/FlowUTI). The web application can be executed locally from the R console. Alternatively, it can be freely accessed at https://covidiario.shinyapps.io/flowuti/. FlowUTI provides an easy-to-use environment for evaluating the efficiency of the urinary screening process with flow-cytometry, reducing the computational burden associated with this kind of analysis.

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