• Arch. Dis. Child. · Jul 2015

    Randomized Controlled Trial

    Normal saline flushes performed once daily maintain peripheral intravenous catheter patency: a randomised controlled trial.

    • Silvana Schreiber, Chiara Zanchi, Luca Ronfani, Anna Delise, Alessandra Corbelli, Rosamaria Bortoluzzi, Andrea Taddio, and Egidio Barbi.
    • Department of Paediatrics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", Trieste, Italy.
    • Arch. Dis. Child. 2015 Jul 1; 100 (7): 700-3.

    ObjectiveRecent evidence supports the use of normal saline flushes in place of heparin to maintain the patency of peripheral intravenous locks (IVLs); however, there are no data regarding the recommended flush frequency.Study DesignThis was an open, non-inferiority, randomised controlled trial. Children with IVLs, aged 1-17 years, were randomly assigned to receive saline flushing every 12 h (group A) or every 24 h (group B). The main outcome was the maintenance of catheter patency.ResultsFour hundred patients were randomised; 198 subjects were analysed in the 12 h group and 199 in the 24 h group (three patients were lost at follow-up). Occlusion occurred in 15 children (7.6%) in group A versus 9 (4.5%) in group B (p=0.21). The difference in catheter patency was +3.1% in favour of the 24 h group (95% CI -1.6% to 7.7%), showing the non-inferiority of the 24 h procedure (the non-inferiority margin was set at -4%). Catheter-related complications were not different between the two groups (12.1% in group A vs 9.5% in group B; p=0.42).ConclusionsA flushing procedure with one flush per day allows maintenance of catheter patency without an increase in catheter-related complications. We propose a simplification of the flushing procedure with only one flush per day, thereby reducing costs (materials use and nursing time), labour and unnecessary manipulation of the catheters which can cause distress in younger children and their parents.Trial Registration NumberThe study is registered in the international database ClinicalTrial.gov under registration number NCT02221024.Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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