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<div about="/news-events/nih-research-matters/life-support-machine-helps-cardiac-arrest-patients-survive" typeof="sioc:Item foaf:Document" class="ds-1col node node--nih-research-matters view-mode-full node--full node--nih-research-matters--full clearfix">
<p class="publishdate"><span property="dc:date" datatype="xsd:dateTime" content="2020-11-24T00:00:00-05:00" class="date-display-single">November 24, 2020</span></p><div class='syndicate'><h1>Life support machine helps cardiac arrest patients survive</h1><div class="callout callout-with-border"><h3>At a Glance</h3>
<ul>
<li>Using a life support machine called ECMO shortly after cardiac arrest outside of a hospital improved patients chances of survival.</li>
<li>The findings may lead to new emergency care treatment interventions and improved outcomes for this common health condition.</li>
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<picture title="Rescue team bringing person to ambulance">
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<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-medium-small/public/news-events/research-matters/2020/20201124-cardiac-arrest.jpg?itok=_qcCIM17&amp;timestamp=1606165241 1x" media="screen and (min-width: 600px)" />
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<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-tiny/public/news-events/research-matters/2020/20201124-cardiac-arrest.jpg?itok=HXDysriI&amp;timestamp=1606165241 1x" media="screen and (min-width: 0)" />
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<img src="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-medium/public/news-events/research-matters/2020/20201124-cardiac-arrest.jpg?itok=VV5Gs8um&amp;timestamp=1606165241" alt="Rescue team bringing person to ambulance" title="Rescue team bringing person to ambulance" />
</picture><span class="caption">The study compared approaches to treating people with cardiac arrest. </span><span class="credit">kaisersosa67 / iStock / Getty Images Plus</span></div>
</div><p>More than 350,000 people die of cardiac arrest each year in the United States. The condition occurs when the heart suddenly stops beating. This stops blood flow to the body, including the heart and brain. Cardiac arrest usually causes death if its not treated immediately, and the standard treatments are not very effective.</p>
<p>Some cardiac arrest patients who receive the standard care treatment do not respond. This treatment usually includes cardiopulmonary resuscitation (CPR), defibrillation (quickly shocking the heart), intubation (inserting a tube down into the airways to assist with breathing), and IV medications. One reason a patient may not respond is if the arteries to their heart have severe blockages, preventing blood flow getting around the body.</p>
<p>Life support machines called extracorporeal membrane oxygenation (ECMO) machines support blood circulation by bypassing a blockage. ECMO machines pull blood out of a patients body, reoxygenate it, and then return the blood back to the body.</p>
<p>To investigate whether using ECMO can benefit cardiac arrest patients, researchers enrolled 30 people who had a cardiac arrest into a clinical trial. The research team, led by Dr. Demetris Yannopoulos at the University of Minnesota, compared the standard treatment with using ECMO as soon as possible. The study was funded by NIHs National Heart, Lung, and Blood Institute (NHLBI). Results were published on November 13, 2020, in the<em> Lancet.</em></p>
<p>Most of the study participants were men who were, on average, 61 years old. Of 14 patients who received ECMO as part of their assigned care for cardiac arrest, six survived to hospital discharge. In contrast, only one of 15 patients who received the standard treatment survived to hospital release.</p>
<p>At three and six months after hospital discharge, all six people who received ECMO were alive and well. The patient who received standard treatment did not survive following release from the hospital. Because of the notable improvement in survival of patients receiving ECMO, the study was halted before enrolling the expected 165 patients.</p>
<p>The investigators note that ECMO improved survival because it allowed time for a full team-based program of care to be implemented. The program included protocols for emergency medical services to identify patients who might benefit most from it. It also involved rapid transport to a hospital, communication with an ECMO center to mobilize experienced operators who do a high volume of ECMO procedures, and protocols for care after the patient is resuscitated.</p>
<p>“The findings from the trial make an important statement that early implementation of ECMO is the enabling and necessary condition that allows further advanced targeted therapies to be delivered in those critical patients. In its absence, the life-saving treatment that follows is just not possible,” says Yannopoulos.</p>
<p>While the results of this small trial are very encouraging, the use of ECMO will need to be tested in a larger, multicenter trial.</p></div><h2 class="label-above">Related Links</h2><ul class="spaced print-urls"><li><a href="http://www.nih.gov/news-events/nih-research-matters/comparing-heart-disease-treatments" target="_top">Comparing Heart Disease Treatments</a></li><li><a href="http://www.nih.gov/news-events/nih-research-matters/device-improves-survival-after-sudden-cardiac-arrest" target="_top">Device Improves Survival After Sudden Cardiac Arrest</a></li><li><a href="http://www.nih.gov/news-events/nih-research-matters/bystanders-save-lives-using-defibrillator-cardiac-arrest" target="_top">Bystanders Save Lives Using Defibrillator for Cardiac Arrest</a></li><li><a href="https://www.nih.gov/news-events/nih-research-matters/heart-bypass-surgery-brings-long-term-benefits" target="_top">Heart Bypass Surgery Brings Long-Term Benefits</a></li><li><a href="https://www.nih.gov/news-events/nih-research-matters/implanted-defibrillators-boost-real-world-survival" target="_top">Implanted Defibrillators Boost “Real World” Survival</a></li><li><a href="https://newsinhealth.nih.gov/2017/11/healthy-body-happy-heart" target="_top">Healthy Body, Happy Heart</a></li><li><a href="https://newsinhealth.nih.gov/2014/08/can-you-recognize-heart-attack-or-stroke" target="_top">Can You Recognize a Heart Attack or Stroke? What To Do When Every Moment Counts</a></li><li><a href="https://www.nhlbi.nih.gov/health-topics/sudden-cardiac-arrest" target="_top">Sudden Cardiac Arrest</a></li><li><a href="https://www.nhlbi.nih.gov/health-topics/heart-attack" target="_top">Heart Attack</a></li><li><a href="https://www.nia.nih.gov/health/what-heart-attack" target="_top">What Is a Heart Attack?</a></li><li><a href="https://www.nia.nih.gov/health/heart-health-and-aging" target="_top">Heart Health and Aging</a></li></ul><p class="footnote"><strong class="label-inline">References:&nbsp;</strong><a href="https://pubmed.ncbi.nlm.nih.gov/33197396/">Advanced reperfusion strategies for patients with out-of-hospital cardiac arrest and refractory ventricular fibrillation (ARREST): a phase 2, single centre, open-label, randomised controlled trial</a>. Yannopoulos D, Bartos J, Raveendran G, Walser E, Connett J, Murray TA, Collins G, Zhang L, Kalra R, Kosmopoulos M, John R, Shaffer A, Frascone RJ, Wesley K, Conterato M, Biros M, Tolar J, Aufderheide TP. <em>Lancet</em>. 2020 Nov 12:S0140-6736(20)32338-2. doi: 10.1016/S0140-6736(20)32338-2. Online ahead of print. PMID: 33197396.</p><p class="footnote"><strong class="label-inline">Funding:&nbsp;</strong>NIHS National Heart, Lung, and Blood Institute (NHLBI).</p>
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