Accuracy of a new clean-catch technique for diagnosis of urinary tract infection in infants younger than 90 days of age

• Published in: Paediatrics & child health Vol. 20; no. 6; pp. e30 - 286
• Main Authors: Herreros, María Luisa, Tagarro, Alfredo, García-Pose, Araceli, Sánchez, Aida, Cañete, Alfonso, Gili, Pablo
• Format: Journal Article
• Language: English
• Published: England Pulsus Group Inc 01.08.2015
• Subjects: Original; Urinary tract infections; Catheterization; Bladder stimulation; Clean-catch; Urine sample
• ISSN: 1205-7088; 1918-1485
• DOI: 10.1093/pch/20.6.286

To evaluate the accuracy of diagnosing urinary tract infections using a new, recently described, standardized clean-catch collection technique. Cross-sectional study of infants <90 days old admitted due to fever without a source, with two matched samples of urine obtained using two different methods: clean-catch standardized stimulation technique and bladder catheterization. Sixty paired urine cultures were obtained. The median age was 44-days-old. Seventeen percent were male infants. Clean-catch technique sensitivity was 97% (95% CI 82% to 100%) and specificity was 89% (95% CI 65% to 98%). The contamination rate of clean-catch samples was lower (5%) than the contamination rate of catheter specimens (8%). The sensitivity and specificity of urine cultures obtained using the clean-catch method through the new technique were accurate and the contamination rate was low. These results suggest that this technique is a valuable, alternative method for urinary tract infection diagnosis.