Title: Epinephrine in OHCA<br/>Author: Kami Hu<br/><a href='http://umem.org/profiles/faculty/742/'>[Click to email author]</a><hr/><p>
The highly-awaited PARAMEDIC2 trial results are in:</p>
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Multicenter, double-blinded, randomized controlled trial of prehospital OHCA care</li>
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1mg IV epinephrine vs saline placebo, every 3-5 minutes</li>
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8014 OHCA patients over the age of 16 (excluded pregnant patients, anaphylactic and asthmatic cardiac arrests)</li>
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Primary outcome: 30 day survival</li>
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Secondary outcomes:
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Survival to hospital admission</li>
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ICU and hospital LOS</li>
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Survival to hospital discharge and at 3 months</li>
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Neurologic outcomes at hospital discharge and at 3 months, "favorable" if mRS≤3</li>
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Results:
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Higher 30 day survival in Epi group (3.2 vs 2.4%, unadj OR 1.39; 95% CI 1.06 to 1.82; P=0.02)</li>
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No difference in ICU or hospital LOS</li>
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No difference in favorable neurologic outcomes at discharge or 3 month</li>
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Worse neurologic outcomes in the epinephrine survivors (mRS 4 or 5 in 31% of epi group vs. 17.8% of placebo)</li>
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Interestingly, the authors also queried the public as to what mattered to them most: </p>
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<img alt="" src="http://umem.org/files/uploads/content/pearls/critical_care/Paramedic-2.jpg" style="width: 450px; height: 200px;" /></p>
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<u>Bottom Line:</u></p>
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As has been demonstrated in previous studies, use of bolus-dose epinephrine results in increased rates of ROSC. </li>
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This survival comes with the trade-off of worsened neurologic function, a condition not in a majority of patients' personal wishes.</li>
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Epinephrine "1mg every 3-5 minutes'" should no longer be the dogma of OHCA resuscitation.</li>
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<fieldset><legend>References</legend>
<p>
Perkins GD, Ji C, Deakin CD, et al. A Randomized Trial of Epinephrine in Out-of-Hospital Cardiac Arrest. N Engl J Med. 2018. doi: 10.1056/NEJMoa1806842.</p>
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