A randomized controlled trial was conducted to compare the effectiveness of airflow-and waterflow-cooling blankets for febrile patients in intensive care unit. More patients in the airflow than in the waterflow-cooling blanket group reached the desired temperature of <38°C at the end of 8h (94·1 versus 60·0%, χ2=2·86, P=0·047). Patients in the airflow blanket group also took less time than those in the waterflow blanket group to achieve the desired temperature (3·1 and 5·7h, respectively, U=2·00, P<0·001). These findings suggest that the airflow blanket is the cooling blanket of choice for febrile patients when external cooling is needed.
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