Preventing inadvertent hypothermia: comparing two protocols for preoperative forced-air warming
Cobbe, K-A and Di Staso, R and Duff, J and Walker, K and Draper, N, Preventing inadvertent hypothermia: comparing two protocols for preoperative forced-air warming, Journal of PeriAnesthesia Nursing, 27, (1) pp. 18-24. ISSN 1089-9472 (2012) [Refereed Article]
Copyright 2012 by American Society of PeriAnesthesia Nurses
Preoperative forced-air warming is one way of preventing inadvertent
perioperative hypothermia. There is scant evidence, however, on the
best warming method or the acceptability of these methods to patients.
This pilot study compared two warming protocols: one that commenced
at maximum temperature and was titrated down as requested (A) and
one that commenced at near body temperature and was titrated up as
tolerated (B). A crossover design was used in which each participant
(n = 10) received both protocols sequentially. The mean device temperature
and length of time spent at maximum settings were greater for protocol
A (43°C ± 0°C vs 41°C ± l°C, P = .003; and 60 ± vs 41.5 ± 2.8 minutes, P = . 004). There was no difference in thermal comfort scores, participant temperature, or sweating between the two protocols. When
asked, participants preferred protocol A to B (70% to 30%). Starting at
higher device settings appears the more favorable of the two approaches.