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Acta Anaesthesiol Scand · Feb 2015
An in vitro evaluation of infusion methods using a syringe pump to improve noradrenaline administration.
- S Genay, B Décaudin, S Scoccia, C Barthélémy, B Debaene, G Lebuffe, and P Odou.
- Department of Biopharmacy, Galenic and Hospital Pharmacy, UDSL, EA GRIIOT, UFR Pharmacie, Lille 2 University, Lille, France; Pharmacy, Lille University Hospital, Lille, France.
- Acta Anaesthesiol Scand. 2015 Feb 1;59(2):197-204.
BackgroundInternational guidelines recommend noradrenaline (NA) as the vasopressor of choice to treat septic shock. The aim of this study was to determine the best way to infuse patients with NA.MethodsThe in vitro study was designed to measure NA concentration at the end of each studied assembly line. Three infusion systems used the double pump method and three single pumps, which differed as regards NA concentrations (0,2 - 0,5 - 1 mg/h), dead space volume of the devices and the use of saline. Infusion systems were compared according to the time necessary to reach an NA mass flow rate steady-state plateau after the onset of infusion or after a flow change.ResultsTimes were significantly different between the six methods for infusing NA. The system using the double syringe method with a standard extension set was the longest to reach the steady state after the onset of infusion [40.00 min (19.57 - 49.22)]. The steady-state plateau was obtained most rapidly with the double-syringe pump systems using very low dead-space volume extension sets and single-syringe pump systems containing diluted noradrenaline at the beginning of NA infusion.ConclusionA combination of a low dead-space volume extension set and a double pump method with a constant saline flow rate at 5 ml/h might be the solution to provide the most reliable NA infusion delivery.© 2014 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
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