RCT: In patients with refractory out-of-hospital cardiac arrest, a strategy of intra-arrest transport, extracorporeal cardiopulmonary resuscitation, and immediate invasive assessment did not significantly improve survival with a favorable neurological outcome (OR 1.63; 95% CI 0.93 to 2.85; P = .09).

Effect of Intra-arrest Transport, Extracorporeal Cardiopulmonary Resuscitation, and Immediate Invasive Assessment and Treatment on Functional Neurologic Outcome in Refractory Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial – JAMA (link to abstract – $ for full-text)

Commentary: Early Invasive Therapy for Out-of-Hospital Cardiac Arrest – American College of Cardiology

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