• Moritz Haugk, Danica Krizanac, Peter Stratil, Martin Grassberger, Wolfgang Weihs, Christoph Testori, Thomas Uray, Udo M Losert, and Fritz Sterz.
• Core Centre of Biomedical Research, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria. moritz.haugk@meduniwien.ac.at
• Resuscitation. 2010 Dec 1;81(12):1704-8.

Aim Of The StudyThe effectiveness and safety of non-invasive surface cooling was compared to invasive endovascular cooling in an animal model.MethodsEight healthy pigs (29-38 kg) were cooled twice, starting in the first 4 pigs with unique surface cooling pads followed by endovascular cooling. In the second 4 pigs the order was reversed. The goal was to quickly lower pulmonary artery temperature from 38 to 33°C. A paired t-test was used to compare cooling rates (°C/h, mean±standard deviation) between both cooling techniques.ResultsMean non-invasive surface cooling rate (11.9±3.8°C/h) significantly exceeded mean invasive cooling rate (3.9±0.7°C/h; p<0.001). The mean difference in cooling rates was 8.0±3.6°C/h. No surface cooling related adverse skin reactions were observed.ConclusionsSurface cooling is a simple method for achieving fast cooling rates. In our animal model, non-invasive cooling was three times faster than rapid endovascular cooling without overshoot.Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

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