Induction of mild hypothermia using the Arctic Sun in patients receiving sedation and neuromuscular blockade.
The Arctic Sun rapidly controls patient temperature with minimal overshoot. The maintenance of hypothermia remains constant over the course of multiple hours or days of cooling.
The Arctic Sun incorporates a Time to Target feature during warming, which is represented by the dotted lines. Target temperature is set, rate of rewarming is programmed in a range of 0.05°C to 0.5°C/hour, and the patient gradually and accurately rewarms over the preset period of time.
Febrile patients, particularly those with neurogenic fevers, may be difficult to cool. An example of a febrile patient cooled and maintained at 37°C is shown above. In one study, when compared with conventional water blankets, the Arctic Sun treatment group resulted in an 81% reduction in percent time febrile over 24 hours and a 20-fold increase in percent time normothermic. In addition, the Arctic Sun treated patients attained normothermia faster than those treated with water blankets.
Mayer SA, et al. Clinical trial of a novel surface cooling system for fever control in neurocritical care patients. Crit Care Med 2004; 32:2508-2515.