August 5, 2026 · JAMA · DOI: 10.1001/jama.2026.10247

Duration of Therapeutic Hypothermia After Out-of-Hospital Cardiac Arrest: The ICECAP Randomized Clinical Trial

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The ICECAP randomized clinical trial aimed to determine the optimal duration of therapeutic hypothermia at 33 °C for maximizing neurological recovery in comatose survivors of out-of-hospital cardiac arrest. The study found that increasing the duration of cooling did not improve neurological outcomes, with a posterior probability suggesting that a 6-hour duration may be optimal. Overall, no significant differences in secondary outcomes or mortality were observed across varying cooling durations.

William J Meurer, Sharon D Yeatts, Romergryko G Geocadin, Akash Roy, Clifton W Callaway, Viswanathan Ramakrishnan, Scott M Berry, Angela F Caveney, Sara Meyer, Nia Bozeman, Deneil M Harney, Mickie Speers, Valerie Lynn Willis Stevenson, Cemal B Sozener, Mohamud R Daya, David G Beiser, Jonathan Elmer, Imad R Khan, Karen G Hirsch, J Hope Kilgannon, Michelle Nassal, Nicholas J Johnson, Rachel Beekman, Teresa L May, Jeremy Brown, Robert Silbergleit, SIREN Investigators

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