ACR Appropriateness Criteria^® Urinary Tract Infection-Child.

Area of Science:

• Pediatric Nephrology
• Diagnostic Imaging
• Urology

Background:

• Urinary tract infections (UTIs) are common in children and can lead to pyelonephritis and renal scarring.
• While long-term complications from renal scarring are minimal, imaging plays a crucial role in identifying underlying urologic abnormalities and guiding treatment.
• Neonates have a higher risk of underlying urologic abnormalities, necessitating careful evaluation.

Purpose of the Study:

• To outline the role of imaging in evaluating pediatric urinary tract infections (UTIs).
• To provide evidence-based guidelines for selecting appropriate imaging studies based on patient age and UTI characteristics.
• To guide clinicians in managing UTIs and associated urologic conditions in children.

Main Methods:

• Review of the American College of Radiology Appropriateness Criteria for pediatric UTI imaging.
• Analysis of current medical literature using established methodologies like RAND/UCLA and GRADE.
• Incorporation of expert opinion to supplement evidence where necessary.

Main Results:

• Ultrasound is generally appropriate for children over 2 months with a first uncomplicated UTI.
• Imaging for vesicoureteral reflux (VUR) is recommended for neonates and children with recurrent or complicated UTIs.
• Routine imaging is not typically needed for children over 6 years with infrequent UTIs, as VUR is less common.

Conclusions:

• Imaging selection for pediatric UTIs should be tailored to the individual child's clinical presentation, age, and risk factors.
• Guidelines help optimize imaging use, ensuring appropriate evaluation for urologic abnormalities while minimizing unnecessary procedures.
• Appropriate imaging guides management, potentially including surgical intervention for conditions like VUR with renal scarring.