Hypothermia resulting from invasive surgical procedures can increase blood and fluid loss and complicate the post-operative course of recovery. Therefore, hypothermia can be quite costly to treat. The Arctic SunTM Model 100 is new a non-invasive perioperative warming device which controls body temperature through single use Arctic Sun Energy Transfer Pads(tm) regulated by a control module. OBJECTIVE: To compare the initial surgical and intensive care unit (ICU) outcomes and costs resulting from use of the Arctic Sun vs. standard care of temperature management in patients undergoing off-pump coronary artery bypass (OPCAB) surgery. METHODS: Data from two clinical studies conducted at a major university were combined with other published data to compare surgical outcomes and treatment costs to the hospital associated with patient re-warming methods. RESULTS: Preliminary findings in OPCAB procedures indicate post-operative hypothermia incidence is lower for patients using the Arctic Sun(tm) Model 100 (5% n=58) compared to patients warmed using the standard warming methods (48%, n=48). An additional cost of over $338.00 per patient for blood products and fluids received by patients was incurred for the standard care population compared to the Arctic Sun(tm) population. Compared to normothermic patients, patients who are hypothermic have an average increased hospital stay of 5.8 days ($2,616.96), and an average increased ICU time of 4.2 hours ($236.88). Combining these costs with the costs to treat infections, morbid cardiac events, and additional lab work, the total additional costs for complications due to hypothermia can easily exceed $8,270 per patient. CONCLUSION: The Arctic Sun is an effective temperature management device for OPCAB patients. Combining the Arctic Sun(tm) clinical data with published economic data suggests that the Arctic Sun(tm) for temperature management in OPCAB procedures could save over $33,800 in blood product costs and over $355,000 in complication costs per 100 patients.