Why the study?
Does active rewarming improve temperature recovery in patients after cardiac surgery involving hypothermic cardiopulmonary bypass?
Does active rewarming improve temperature recovery in patients after cardiac surgery involving hypothermic cardiopulmonary bypass?
Active rewarming with an oesophageal heat exchanger or radiant heater did not show significant overall differences compared to no active rewarming, aside from higher skin temperatures with radiant heating.
Active rewarming shows no temperature recovery benefit after hypothermic bypass; should not change practice and leaves open need for larger trials.
Three regimens for rewarming patients after cardiac surgery involving hypothermic cardiopulmonary bypass were studied in 30 patients. The control group (n = 10) received no active rewarming, the oesophageal group (n = 10) was warmed centrally using an oesophageal heat exchanger and the radiant group (n = 10) was warmed peripherally with an overhead radiant heater. There were no statistically significant differences between the groups apart from the higher mean skin temperatures in the peripheral group.
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Imrie et al. (1991) studied this question.
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