Premium
Augmentation of the Cooling Capacity of Refrigerated Fluid by Minimizing Heat Gain of the Fluid Using a Simple Method of Cold Insulation
Author(s) -
Lee Byung Kook,
Jeung Kyung Woon,
Lee Seung Cheol,
Min Yong Il,
Ryu Hyun Ho,
Kim Mu Jin,
Lee Hyoung Youn,
Heo Tag
Publication year - 2010
Publication title -
academic emergency medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.221
H-Index - 124
eISSN - 1553-2712
pISSN - 1069-6563
DOI - 10.1111/j.1553-2712.2010.00748.x
Subject(s) - medicine , outflow , surgery , anesthesia , geology , oceanography
Objectives: This study was undertaken to determine how rapidly refrigerated fluids gain heat during bolus infusion and to determine whether the refrigerated fluids could be kept cold by a simple cold‐insulation method. Methods: One liter of refrigerated fluid was run through either a 16‐gauge catheter (16G(–) and 16G(+) groups) or an 18‐gauge catheter (18G(–) and 18G(+) groups) while monitoring the temperature in the fluid bag and the outflow site. In the 16G(+) and the 18G(+) groups, the fluid bag was placed with an ice pack inside an insulating sleeve during the fluid run. Results: In the 16G(–) and the 18G(–) groups, the outflow temperature increased to 10–12°C during the fluid run. Meanwhile, outflow temperatures in the 16G(+) and the 18G(+) groups remained below 4.6 and 6.8°C, respectively. The temperatures differed significantly between the 16G(–) and the 16G(+) groups (p < 0.001) and between the 18G(–) and the 18G(+) groups (p < 0.001), respectively. Conclusions: Substantial heat gain occurred in the refrigerated fluid even during the relatively short duration of bolus infusion. The heat gain could, however, be easily minimized by cold insulation of the fluid bag. ACADEMIC EMERGENCY MEDICINE 2010; 17:673–675 © 2010 by the Society for Academic Emergency Medicine