Premium
Intra‐operative rewarming with Hot Dog ® resistive heating and forced‐air heating: a trial of lower‐body warming
Author(s) -
Röder G.,
Sessler D. I.,
Roth G.,
Schopper C.,
Mascha E. J.,
Plattner O.
Publication year - 2011
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.1365-2044.2011.06722.x
Subject(s) - forced air , medicine , resistive touchscreen , core (optical fiber) , core temperature , anesthesia , surgery , materials science , composite material , thermodynamics , electrical engineering , physics , engineering
Summary Resistive heating is an alternative to forced‐air warming which is currently the most commonly used intra‐operative warming system. We therefore tested the hypothesis that rewarming rates are similar with Hot Dog ® (Augustine Biomedical) resistive and Bair Hugger ® (Arizant) forced‐air heating systems. We evaluated 28 patients having major maxillary tumour surgery. During the establishment of invasive monitoring, patients became hypothermic, dropping their core temperature to about 35 °C. They were then randomly assigned to rewarming with lower‐body resistive (n = 14) or forced‐air (n = 14) heating, with each system set to ‘high’. Our primary outcome was the rewarming rate during active heating over a core temperature range from 35 to 37 °C. Morphometric characteristics were comparable in both groups. Temperature increased at twice the rate in patients assigned to forced‐air warming, with an estimated mean (SE) slope of 0.49 (0.03) °C.h −1 vs 0.24 (0.02) °C.h −1 (p < 0.001). Resistive heating warmed at half the rate of forced air.