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  • Title: Management of pitfalls for the successful clinical use of hypothermia treatment.
    Author: Hayashi N.
    Journal: J Neurotrauma; 2009 Mar; 26(3):445-53. PubMed ID: 19292696.
    Abstract:
    Therapeutic hypothermia is a promising method for controlling intracranial pressure (ICP) in severely brain-injured patients. However, clinical data regarding the effect of brain hypothermia on overall outcome of these patients is limited. This may be because there are specific pitfalls associated with the clinical management of induced hypothermia in patients with severe traumatic brain injury (TBI). These pitfalls may be avoided by preventing specific risk factors when cooling is induced and with rewarming. However, these risk factors have not been well systematically discussed in the literature. In this paper, three categories of clinical issues regarding the management of brain hypothermia are discussed: (1) stress-induced secondary brain injury mechanisms; (2) technical aspects of intensive care unit (ICU) cooling management; and (3) rewarming rates and methods. For patients with a Glasgow Coma Scale (GCS) score of less than 8, management of stress-induced insulin-resistant hyperglycemia, and unstable systemic circulation due to impaired cardiac contractility are especially important. For example, in our experience, posttraumatic hyperglycemia, exacerbated by cooling, may be ameliorated by the administration of a ketone body with mannitol. Prevention of selective free radical damage to neurons is also an important target for successful brain hypothermia treatment. Taken together, it is clear that several orchestrated steps should be initiated to enhance the protective effects of hypothermia therapy and prevent these possible pitfalls.
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