Therapeutic Whole-Body Hypothermia Reduces Death in Severe Traumatic Brain Injury if the Cooling Index Is Sufficiently High: Meta-Analyses of the Effect of Single Cooling Parameters and Their Integrated Measure

Therapeutic hypothermia was investigated repeatedly as a tool to improve the outcome of severe traumatic brain injury (TBI), but previous clinical trials and meta-analyses found contradictory results. We aimed to determine the effectiveness of therapeutic whole-body hypothermia on the deaths of adul...

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Veröffentlicht in:Journal of neurotrauma 2018-10, Vol.35 (20), p.2407-2417
Hauptverfasser: Olah, Emoke, Poto, Laszlo, Hegyi, Peter, Szabo, Imre, Hartmann, Petra, Solymar, Margit, Petervari, Erika, Balasko, Marta, Habon, Tamas, Rumbus, Zoltan, Tenk, Judit, Rostas, Ildiko, Weinberg, Jordan, Romanovsky, Andrej A, Garami, Andras
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Sprache:eng
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Zusammenfassung:Therapeutic hypothermia was investigated repeatedly as a tool to improve the outcome of severe traumatic brain injury (TBI), but previous clinical trials and meta-analyses found contradictory results. We aimed to determine the effectiveness of therapeutic whole-body hypothermia on the deaths of adult patients with severe TBI by using a novel approach of meta-analysis. We searched the PubMed, EMBASE, and Cochrane Library databases from inception to February 2017. The identified human studies were evaluated regarding statistical, clinical, and methodological designs to ensure interstudy homogeneity. We extracted data on TBI severity, body temperature, death, and cooling parameters; then we calculated the cooling index, an integrated measure of therapeutic hypothermia. Forest plot of all identified studies showed no difference in the outcome of TBI between cooled and not cooled patients, but interstudy heterogeneity was high. On the contrary, by meta-analysis of randomized clinical trials that were homogenous with regard to statistical, clinical designs, and precisely reported the cooling protocol, we showed decreased odds ratio for death in therapeutic hypothermia compared with no cooling. As independent factors, milder and longer cooling, and rewarming at
ISSN:0897-7151
1557-9042
DOI:10.1089/neu.2018.5649