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Simulated clinical evaluation of four fluid warming devices *
Author(s) -
Turner M.,
Hodzovic I.,
Mapleson W. W.
Publication year - 2006
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.2006.04589.x
Subject(s) - medicine , hotline , flow (mathematics) , cannula , mechanics , surgery , physics , electrical engineering , engineering
Summary The fluid warming capabilities of the Bair Hugger, Hotline, Standard Ranger and Fluido devices were evaluated in the laboratory with gravity flow via a 14G cannula (1 m head of fluid) and with the fluid bag pressurised to 300 mmHg. The resulting flows (70–450 ml.min −1 ) were recorded. At a room temperature of 22 °C, no device warmed the fluid to 37 °C. However, the Standard Ranger with gravity flow and the Fluido with both gravity and pressurised flow achieved 35 °C, whereas the Bair Hugger and Hotline with both gravity and pressurised flow, and the Standard Ranger with pressurised flow, achieved only 24–31 °C. However, from the way delivered temperatures changed with flow, we calculated that all four devices would achieve close to 37 °C at the flows specified by the manufacturers: 17, 83, 150 and 800 ml.min −1 for the Bair Hugger, Hotline, Standard Ranger and Fluido, respectively.