Core Rewarming

A technique used for patients with moderate/severe hypothermia
Without circulatory collapse Warm airways with heated, humidified air by O2 mask or endotracheal tube, eliminating respiratory heat loss, and increase body temperature by 1º–2ºC/hour; expand volume with warmed (40º–42ºC) IV solutions; other methods include peritoneal lavage with heated dialysate or closed pleural irrigation with warm saline
With hemodynamic instability Cardiopulmonary bypass; advantages include ability to maintain perfusion and oxygenation while rapid rewarming occurs and myocardial function recovers
References in periodicals archive ?
Alsius Corporation's (Irvine, CA) intravascular balloon-catheter system has been approved in the United States for therapeutic human core cooling and rewarming during or following cardiac or neurologic surgery and following cerebral infarction or intracerebral hemorrhage and was thus employed for core rewarming after traumatic injury (10).
Continuous veno-venous rewarming with a 40[degrees]C hemodiafiltration (CVVH) machine may produce core rewarming rates of up to 2[degrees]C/h in cases of primary (nontrauma) hypothermia but often requires a specially trained nurse or technician for monitoring (12-14).
Intravascular heat exchange with a balloon catheter provides rapid active core rewarming, even in patients with unavoidable ongoing heat loss.