• BMC anesthesiology · Jul 2018

    Heating capabilities of small fluid warming systems.

    • Norbert Zoremba, Christian Bruells, Rolf Rossaint, and Thomas Breuer.
    • Department of Anaesthesiology, Sankt Elisabeth Hospital Gütersloh, Stadtring Kattenstroth 130, D-33332, Gütersloh, Germany. norbert.zoremba@sankt-elisabeth-hospital.de.
    • BMC Anesthesiol. 2018 Jul 28; 18 (1): 98.

    BackgroundPerioperative temperature management is fundamental to ensure normothermia in patients. Fluid warmers, which have become smaller in size over the past few years, can help to maintain a stable body temperature. Potentially, the reduction of the size may influence the heating performance.MethodsTherefore, we tested the effectiveness of enFlow®, Fluido compact® and Thermosens® fluid warmers by measuring the inlet and outlet temperature for room-tempered and ice-cooled saline at flow rates of 25, 50, 75 and 100 ml/min.ResultsAt all examined flow rates, the tested heating devices warmed up room-tempered saline effectively. The enFlow® provided the significantly (p < 0.05) highest outlet temperature throughout all tested flow rates in comparison to the other devices. When ice-cooled saline was used, the enFlow® maintained a stable outlet temperature > 38 °C at all tested flow rates. The Fluido compact® ensured this only at flow rates of 25 and 50 ml/min, while the Thermosens® provided these conditions at flow rates of 25, 50 and 75 ml/min.ConclusionsThe heating capability for room-tempered saline was effective in all tested devices, but with ice-cooled saline enFlow® is superior at high flow rates. At low flow rates the heating capabilities of enFlow®, Fluido compact® and Thermosens® are comparable.

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