Numerous scientific and medical articles have described the usefulness of temperature modulation, such as induced hypothermia (cooling), which is designed to protect endangered cells, prevent tissue death and preserve organ function following acute events associated with severe oxygen deprivation such as stroke or cardiac arrest. Therapeutic hypothermia is believed to work by protecting critical tissues and organs (such as the brain, heart and kidneys) following ischemic or inflammatory events, by lowering metabolism and preserving cellular energy stores, thereby potentially stabilizing cellular structure and preventing or reducing injuries at the cellular, tissue and organ level. Two international clinical trials on hypothermia after cardiac arrest published in The New England Journal of Medicine demonstrated that induced hypothermia reduced mortality and improved long-term neurological function. Based on these and other results, the American Heart Association (AHA) and the International Liaison Committee on Resuscitation (ILCOR) have issued guidelines recommending that cardiac arrest victims be treated with induced hypothermia.
Ischemic diseases constitute the largest segment of the medical market in
the United States and in almost all developed countries worldwide. For
example, in the U.S. and other developed countries, an estimated 1.4 million
people experience cardiac arrest each year, of which an increasing number
(currently about 350,000) survive to receive advanced care. The AHA
guidelines now recommend the use of therapeutic cooling as part of the
critical care procedures for patients with an out-of-hospital cardiac arrest
following ventricular fibrillati
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