A randomized, controlled trial comparing arteriovenous to venovenous rewarming of severe hypothermia in a porcine model.

Background: The purpose of this study was to evaluate active rewarming using continuous arteriovenous rewarming (CAVR) and continuous venovenous rewarming (CVVR) methods during severe hypothermia using an electromagnetic fluid warmer. Rapid rewarming using these techniques is superior to passive rewarming and is possible with commercially available equipment.

Methods: Eighteen swine (55-65 kg) were assigned to CAVR, CVVR, or control.