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Pediatric febrile urinary tract infections: the current state of play
Ian K Hewitt1, Giovanni Montini
1Department of Pediatrics, Azienda Ospedaliero-Universitaria Sant'Orsola-Malpighi Bologna, Italy.
Insights
Febrile urinary tract infections (UTIs) in children are common, with renal scarring a risk. Current management trends favor less invasive approaches, but concerns remain about identifying children at high risk for severe kidney damage.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
Background:
- Febrile urinary tract infections (UTIs) are common serious bacterial infections in childhood.
- Renal scarring from pyelonephritis was historically linked to chronic renal insufficiency.
- Congenital renal hypo-dysplasia is now recognized as a frequent underlying condition.
Purpose of the Study:
- To review current understanding of febrile UTI management in children.
- To examine evolving treatment strategies and diagnostic protocols.
- To address concerns regarding potential under-detection of severe kidney damage.
Main Methods:
- Review of recent studies on febrile UTI consequences and management.
- Analysis of trends towards less aggressive therapeutic and investigative approaches.
- Discussion of diagnostic challenges and the need for consensus.
Main Results:
- A developing consensus favors less invasive management for uncomplicated first febrile UTIs (oral antibiotics, less invasive investigations).
- Congenital renal hypo-dysplasia is increasingly recognized as a primary factor.
- A universally accepted diagnostic protocol remains elusive due to concerns about missing high-risk subgroups.
Conclusions:
- Current trends in febrile UTI management are shifting towards less invasive strategies.
- There is an ongoing need to balance conservative management with the identification of children at risk for severe kidney damage.
- Further research is needed to refine diagnostic protocols for febrile UTIs in children.
Abstract:
Studies undertaken in recent years have improved our understanding regarding the consequences and management of febrile urinary tract infections (UTIs), which are amongst the most common serious bacterial infections in childhood, with renal scarring a frequent outcome. In the past pyelonephritic scarring of the kidney, often associated with vesico-ureteral reflux (reflux nephropathy) was considered a frequent cause of chronic renal insufficiency in children. Increasing recognition as a consequence of improved antenatal ultrasound, that the majority of these children had congenital renal hypo-dysplasia, has resulted in a number of studies examining treatment strategies and outcomes following UTI. In recent years there is a developing consensus regarding the need for a less aggressive therapeutic approach with oral as opposed to intravenous antibiotics, and less invasive investigations, cystourethrography in particular, following an uncomplicated first febrile UTI. There does remain a concern that with this newer approach we may be missing a small subgroup of children more prone to develop severe kidney damage as a consequence of pyelonephritis, and in whom some form of intervention may prove beneficial. These concerns have meant that development of a universally accepted diagnostic protocol remains elusive.
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