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Background <p>Children with febrile urinary tract infections (fUTI), especially those with acute pyelonephritis (APN) and vesicoureteral reflux (VUR), may face several complications, especially kidney scarring. Different biomarkers, such as urinary neutrophil gelatinase-associated lipocalin (uNGAL) and procalcitonin (PCT), have been studied for predicting kidney scarring without the need for a DMSA scan.</p> Objectives <p>This systematic review and meta-analysis examines the role of biomarkers in pediatric patients with a history of fUTI and their prognostic value in the diagnosis of APN and prediction of kidney scarring.</p> Data sources <p>A search through major databases (MEDLINE/PubMed and Scopus) was conducted from inception until January 2, 2025. The mean difference (95% CI) was applied. A <i>p</i> &lt; 0.05 was considered statistically significant.</p> Results <p>The systematic review included 2300 participants from 28 studies. Procalcitonin and uNGAL were higher in individuals with scarring after a fUTI episode compared to those without scarring (<i>p</i> = 0.035 and <i>p</i> &lt; 0.0001, respectively). In addition, PCT was higher in patients with APN compared to those with lower UTI (<i>p</i> &lt; 0.0001). Finally, the good and moderate overall diagnostic accuracy (I<sup>2</sup> = 29.8%) of PCT in predicting APN (AUC: 0.861) and uNGAL (I<sup>2</sup> = 16.8%) in predicting kidney scarring after an episode of fUTI (AUC: 0.74), respectively, should be considered.</p> Conclusions <p>This study showed that PCT and uNGAL can detect APN and kidney scarring after fUTI. More studies should be conducted exploring the role of other biomarkers in scarring after an episode of fUTI in pediatric patients with or without VUR.</p> Graphical abstract <p></p>

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The value of procalcitonin and urinary NGAL in the prediction of acute pyelonephritis and kidney scarring in pediatric patients with a history of febrile urinary tract infection: a systematic review and meta-analysis

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  • 出版模式：

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  • 发表日期：

    2025年7月31日

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  • Nikolaos Gkiourtzis,
  • Anastasia Stoimeni,
  • Panagiota Michou,
  • Nikolaos Charitakis,
  • Konstantinos Cheirakis,
  • Vasileios Liakos,
  • Kali Makedou,
  • Nikoleta Printza,
  • Charalampos Antachopoulos,
  • Despoina Tramma

摘要

Background

Children with febrile urinary tract infections (fUTI), especially those with acute pyelonephritis (APN) and vesicoureteral reflux (VUR), may face several complications, especially kidney scarring. Different biomarkers, such as urinary neutrophil gelatinase-associated lipocalin (uNGAL) and procalcitonin (PCT), have been studied for predicting kidney scarring without the need for a DMSA scan.

Objectives

This systematic review and meta-analysis examines the role of biomarkers in pediatric patients with a history of fUTI and their prognostic value in the diagnosis of APN and prediction of kidney scarring.

Data sources

A search through major databases (MEDLINE/PubMed and Scopus) was conducted from inception until January 2, 2025. The mean difference (95% CI) was applied. A p < 0.05 was considered statistically significant.

Results

The systematic review included 2300 participants from 28 studies. Procalcitonin and uNGAL were higher in individuals with scarring after a fUTI episode compared to those without scarring (p = 0.035 and p < 0.0001, respectively). In addition, PCT was higher in patients with APN compared to those with lower UTI (p < 0.0001). Finally, the good and moderate overall diagnostic accuracy (I2 = 29.8%) of PCT in predicting APN (AUC: 0.861) and uNGAL (I2 = 16.8%) in predicting kidney scarring after an episode of fUTI (AUC: 0.74), respectively, should be considered.

Conclusions

This study showed that PCT and uNGAL can detect APN and kidney scarring after fUTI. More studies should be conducted exploring the role of other biomarkers in scarring after an episode of fUTI in pediatric patients with or without VUR.

Graphical abstract