Endovascular Versus External Targeted Temperature Management for Patients With Out-of-Hospital Cardiac Arrest: A Randomized, Controlled Study
- PMID: 26092673
- DOI: 10.1161/CIRCULATIONAHA.114.012805
Endovascular Versus External Targeted Temperature Management for Patients With Out-of-Hospital Cardiac Arrest: A Randomized, Controlled Study
Erratum in
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Correction.Circulation. 2016 Feb 23;133(8):e418. doi: 10.1161/CIR.0000000000000387. Circulation. 2016. PMID: 26903029 No abstract available.
Abstract
Background: Targeted temperature management is recommended after out-of-hospital cardiac arrest. Whether advanced internal cooling is superior to basic external cooling remains unknown. The aim of this multicenter, controlled trial was to evaluate the benefit of endovascular versus basic surface cooling.
Methods and results: Inclusion criteria were the following: age of 18 to 79 years, out-of-hospital cardiac arrest related to a presumed cardiac cause, time to return of spontaneous circulation <60 minutes, delay between return of spontaneous circulation and inclusion <240 minutes, and unconscious patient after return of spontaneous circulation and before the start of cooling. Exclusion criteria were terminal disease, pregnancy, known coagulopathy, uncontrolled bleeding, temperature on admission <30°C, in-hospital cardiac arrest, immediate need for extracorporeal life support or hemodialysis. Patients were randomized between 2 cooling strategies: endovascular femoral devices (Icy catheter, Coolgard, Zoll, formerly Alsius; n=203) or basic external cooling using fans, a homemade tent, and ice packs (n=197). The primary end point, that is, favorable outcome evaluated by survival without major neurological damage (Cerebral Performance Categories 1-2) at day 28, was not significantly different between groups (odds ratio, 1.41; 95% confidence interval, 0.93-2.16; P=0.107). Improvement in favorable outcome at day 90 in favor of the endovascular group did not reach significance (odds ratio, 1.51; 95% confidence interval, 0.96-2.35; P=0.07). Time to target temperature (33°C) was significantly shorter and target hypothermia was more strictly maintained in the endovascular than in the surface group (P<0.001). Minor side effects directly related to the cooling method were observed more frequently in the endovascular group (P=0.009).
Conclusion: Despite better hypothermia induction and maintenance, endovascular cooling was not significantly superior to basic external cooling in terms of favorable outcome.
Clinical trial registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00392639.
Keywords: endovascular procedures; heart arrest; hypothermia; prognosis; therapy.
© 2015 American Heart Association, Inc.
Comment in
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How to Stay Cool in the Intensive Care Unit? Endovascular Versus Surface Cooling.Circulation. 2015 Jul 21;132(3):152-7. doi: 10.1161/CIRCULATIONAHA.115.017350. Epub 2015 Jun 19. Circulation. 2015. PMID: 26092672 No abstract available.
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Letter by Guo et al Regarding Article, "Endovascular Versus External Targeted Temperature Management for Patients With Out-of-Hospital Cardiac Arrest: A Randomized, Controlled Study".Circulation. 2016 Feb 23;133(8):e412. doi: 10.1161/CIRCULATIONAHA.115.019384. Circulation. 2016. PMID: 26903024 No abstract available.
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Response to Letter Regarding Article, "Endovascular Versus External Targeted Temperature Management for Patients With Out-of-Hospital Cardiac Arrest: A Randomized, Controlled Study".Circulation. 2016 Feb 23;133(8):e413-4. doi: 10.1161/CIRCULATIONAHA.115.019996. Circulation. 2016. PMID: 26903025 No abstract available.
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