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Clinical Trial Summary

Background:

The investigators recently evaluated a new bladder stimulation technique to obtain clean-catch urine in infants aged less than six months. In this study, the reported success rate was of 52%. Measuring the transversal bladder diameter prior to the procedure with emergency point-of-care ultrasound (ePOCUS) could likely increase success rates for this technique as it has been described for bladder scans prior to performing urethral catheterization.

Objective:

The aim of this study is to evaluate if using emergency point-of-care ultrasound to measure bladder volume improves clean-catch urine collection success in patients less than 6 months of age when compared to children undergoing this technique without a prior ultrasound.

Methods:

This will be a randomized controlled trial performed in a tertiary paediatric emergency department. Participants will include all infants younger than 6 months of age who need a urinary culture and/or analysis requested by the attending physician. The intervention will consist of the use of emergency point-of-care ultrasound by a trained research assistant. The primary outcome will be the rate of success of the procedure. Secondary objectives will be to evaluate time to collect urine samples and to determine which transversal bladder diameter correlates with more than a 90% success rate for the procedure. Independent variables will be sex and age. In both groups, trained research nurses will collect clean-catch urine samples using bladder stimulation techniques. The success rate of the CCU procedure in both groups will be calculated. The time required to collect urine samples will be analysed. In group 1, the investigators will determine the transversal bladder diameter corresponding to a success rate for the procedure of > 80%. It is estimated that, in the worse-case scenario, the evaluation of 200 participants will provide a 95% confidence interval smaller than 10% for proportions. In addition, 20 participants with a successful CCU sample would allow to evaluate 2 risk factors using univariate and multivariate analysis.

Expected results:

This study will demonstrate that use of emergency point-of-care ultrasound increases success rates of stimulated clean-catch manoeuvres and may avoid invasive urethral catheterizations in young children.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT02751671
Study type Interventional
Source St. Justine's Hospital
Contact
Status Completed
Phase N/A
Start date August 2016
Completion date June 2017

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