Radiological abnormalities in infants with urinary tract infections

Area of Science:

• Pediatric Nephrology
• Diagnostic Imaging
• Urology

Background:

• Urinary tract infections (UTIs) are common in infants.
• Identifying underlying urinary tract abnormalities is crucial for appropriate management.
• Radiological imaging plays a key role in diagnosing these conditions.

Purpose of the Study:

• To evaluate the incidence and clinical significance of urinary tract abnormalities in infants with documented UTIs.
• To analyze the relationship between abnormalities and patient factors like age, sex, and prematurity.
• To assess the diagnostic yield of intravenous urogram (IVU) and micturating cystourethrogram (MCUG).

Main Methods:

• Prospective study of 100 infants with documented UTIs.
• Urine samples collected via suprapubic aspiration or clean voided samples.
• Diagnostic imaging included intravenous urogram (IVU) and micturating cystourethrogram (MCUG).
• Abnormalities were classified by clinical importance, considering vesicoureteric reflux, reflux nephropathy, and obstructive lesions.

Main Results:

• Radiological abnormalities detected in 47% of infants (40% boys, 63% girls).
• Clinically important abnormalities (Grade 3-4 VUR, reflux nephropathy, obstructive lesions) found in 29% of infants.
• Six of 10 preterm infants had radiological abnormalities.
• Severe vesicoureteric reflux in preterm infants showed spontaneous improvement in 3 out of 4 cases within 6 months.

Conclusions:

• A significant proportion of infants with UTIs have radiologically detectable urinary tract abnormalities.
• Girls and younger infants are more prone to significant abnormalities.
• Early diagnosis and imaging are essential for managing UTIs in infants.
• Preterm infants with severe vesicoureteric reflux may experience favorable outcomes.