Sonder P, et al. - A prospective intervention study is performed to compare 4 frequently used cooling systems in inducing and maintaining hypothermia followed by controlled rewarming. Findings reveal that compared to the water-circulating cooling blankets, endovascular cooling and gel-adhesive pads provide more rapid hypothermia induction and more effective temperature maintenance. This applied to induction speed, but (more importantly) also to time within target range during maintenance.