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Rapid epinephrine administration improves early outcomes in out-of-hospital cardiac arrest
Abstract Introduction Early administration of epinephrine (Epi) improves outcomes in animal models of cardiac arrest, but there is limited time-dependent clinical data regarding its benefit. Objective Our objective was to assess whether timing of Epi administration was associated with improved outco...
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| Published in: | Resuscitation 2013-07, Vol.84 (7), p.915-920 |
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| creator | Koscik, C Pinawin, A McGovern, H Allen, D Media, D.E Ferguson, T Hopkins, W Sawyer, K.N Boura, J Swor, R |
| description | Abstract Introduction Early administration of epinephrine (Epi) improves outcomes in animal models of cardiac arrest, but there is limited time-dependent clinical data regarding its benefit. Objective Our objective was to assess whether timing of Epi administration was associated with improved outcomes after out of hospital cardiac arrest (OHCA). Methods We performed a retrospective analysis of a cardiac arrest database from a suburban EMS system from November 2005 to April 2011. Data was abstracted from EMS run sheets, including drug treatment, route and timing of drug administration, and other Utstein variables. Our primary outcome was return of spontaneous circulation (ROSC). Secondary outcomes measured were survival to hospital admission and discharge. For analysis, data were dichotomized according to timing of Epi administration: early Epi group (defined as 911 call to Epi administration of ≤10 min) and late Epi group (>10 min). Further, exploratory analyses were conducted looking at subgroups sorted by initial rhythm and whether the arrest was witnessed. Wilcoxon rank sum tests, chi-square tests, 95% confidence intervals, and multi-variable regression were used for statistical analysis. Results We reviewed 809 patients from study communities: 123 patients were excluded, leaving a sample size of 686 for study analysis. The mean time from 911-Epi was 14.3 ± 5.5 min, with 155 (22.6%) receiving early Epi. Key arrest and treatment characteristics were similar between groups. Patients who received early Epi were more likely to have ROSC (32.9% vs. 23.4%, OR 1.59 (1.07, 2.38)), however, no significant increase in survival to admission or discharge was observed. Patients with an initial rhythm of PEA had an increased rate of ROSC (48.6% vs. 21.5%, OR 3.45 (1.56, 7.62)) but not survival to discharge (5.9% vs. 2.6%), OR 2.35 (0.38, 14.7) with early Epi. In a multivariable analysis of bystander witnessed arrests, early Epi was associated with a higher rate of ROSC (OR 3.20 (1.75, 5.88) but not survival to discharge (OR 1.48 (0.50, 4.36)). No improvement in ROSC or secondary outcomes was noted in patients with other arrest rhythms or un-witnessed arrest with Early Epi. Conclusions Within the limitations of our study, this data suggests improved rates of ROSC with early Epi administration during OHCA resuscitation, but this study lacks adequate sample size to demonstrate impact on survival to discharge. Large prospective trials are needed to further delineate the |
| doi_str_mv | 10.1016/j.resuscitation.2013.03.023 |
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Objective Our objective was to assess whether timing of Epi administration was associated with improved outcomes after out of hospital cardiac arrest (OHCA). Methods We performed a retrospective analysis of a cardiac arrest database from a suburban EMS system from November 2005 to April 2011. Data was abstracted from EMS run sheets, including drug treatment, route and timing of drug administration, and other Utstein variables. Our primary outcome was return of spontaneous circulation (ROSC). Secondary outcomes measured were survival to hospital admission and discharge. For analysis, data were dichotomized according to timing of Epi administration: early Epi group (defined as 911 call to Epi administration of ≤10 min) and late Epi group (>10 min). Further, exploratory analyses were conducted looking at subgroups sorted by initial rhythm and whether the arrest was witnessed. Wilcoxon rank sum tests, chi-square tests, 95% confidence intervals, and multi-variable regression were used for statistical analysis. Results We reviewed 809 patients from study communities: 123 patients were excluded, leaving a sample size of 686 for study analysis. The mean time from 911-Epi was 14.3 ± 5.5 min, with 155 (22.6%) receiving early Epi. Key arrest and treatment characteristics were similar between groups. Patients who received early Epi were more likely to have ROSC (32.9% vs. 23.4%, OR 1.59 (1.07, 2.38)), however, no significant increase in survival to admission or discharge was observed. Patients with an initial rhythm of PEA had an increased rate of ROSC (48.6% vs. 21.5%, OR 3.45 (1.56, 7.62)) but not survival to discharge (5.9% vs. 2.6%), OR 2.35 (0.38, 14.7) with early Epi. In a multivariable analysis of bystander witnessed arrests, early Epi was associated with a higher rate of ROSC (OR 3.20 (1.75, 5.88) but not survival to discharge (OR 1.48 (0.50, 4.36)). No improvement in ROSC or secondary outcomes was noted in patients with other arrest rhythms or un-witnessed arrest with Early Epi. Conclusions Within the limitations of our study, this data suggests improved rates of ROSC with early Epi administration during OHCA resuscitation, but this study lacks adequate sample size to demonstrate impact on survival to discharge. Large prospective trials are needed to further delineate the benefit of early Epi administration in OHCA.</description><identifier>ISSN: 0300-9572</identifier><identifier>EISSN: 1873-1570</identifier><identifier>DOI: 10.1016/j.resuscitation.2013.03.023</identifier><identifier>PMID: 23523823</identifier><language>eng</language><publisher>Ireland: Elsevier Ireland Ltd</publisher><subject>Aged ; Cardiac arrest ; Cardiopulmonary Resuscitation ; Databases, Factual ; Emergency ; Emergency Medical Services ; Epinephrine ; Epinephrine - administration & dosage ; Female ; Humans ; Male ; Multivariate Analysis ; Out-of-Hospital Cardiac Arrest - mortality ; Out-of-Hospital Cardiac Arrest - therapy ; Outcome ; Patient Outcome Assessment ; Retrospective Studies ; Survival ; Time Factors ; Vasoconstrictor Agents - administration & dosage</subject><ispartof>Resuscitation, 2013-07, Vol.84 (7), p.915-920</ispartof><rights>Elsevier Ireland Ltd</rights><rights>2013 Elsevier Ireland Ltd</rights><rights>Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-adb050cc07ab22c7dc04cd5257eef6f5bc9e60590bc2539b1485cec9d2cbaf933</citedby><cites>FETCH-LOGICAL-c504t-adb050cc07ab22c7dc04cd5257eef6f5bc9e60590bc2539b1485cec9d2cbaf933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23523823$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Koscik, C</creatorcontrib><creatorcontrib>Pinawin, A</creatorcontrib><creatorcontrib>McGovern, H</creatorcontrib><creatorcontrib>Allen, D</creatorcontrib><creatorcontrib>Media, D.E</creatorcontrib><creatorcontrib>Ferguson, T</creatorcontrib><creatorcontrib>Hopkins, W</creatorcontrib><creatorcontrib>Sawyer, K.N</creatorcontrib><creatorcontrib>Boura, J</creatorcontrib><creatorcontrib>Swor, R</creatorcontrib><title>Rapid epinephrine administration improves early outcomes in out-of-hospital cardiac arrest</title><title>Resuscitation</title><addtitle>Resuscitation</addtitle><description>Abstract Introduction Early administration of epinephrine (Epi) improves outcomes in animal models of cardiac arrest, but there is limited time-dependent clinical data regarding its benefit. Objective Our objective was to assess whether timing of Epi administration was associated with improved outcomes after out of hospital cardiac arrest (OHCA). Methods We performed a retrospective analysis of a cardiac arrest database from a suburban EMS system from November 2005 to April 2011. Data was abstracted from EMS run sheets, including drug treatment, route and timing of drug administration, and other Utstein variables. Our primary outcome was return of spontaneous circulation (ROSC). Secondary outcomes measured were survival to hospital admission and discharge. For analysis, data were dichotomized according to timing of Epi administration: early Epi group (defined as 911 call to Epi administration of ≤10 min) and late Epi group (>10 min). Further, exploratory analyses were conducted looking at subgroups sorted by initial rhythm and whether the arrest was witnessed. Wilcoxon rank sum tests, chi-square tests, 95% confidence intervals, and multi-variable regression were used for statistical analysis. Results We reviewed 809 patients from study communities: 123 patients were excluded, leaving a sample size of 686 for study analysis. The mean time from 911-Epi was 14.3 ± 5.5 min, with 155 (22.6%) receiving early Epi. Key arrest and treatment characteristics were similar between groups. Patients who received early Epi were more likely to have ROSC (32.9% vs. 23.4%, OR 1.59 (1.07, 2.38)), however, no significant increase in survival to admission or discharge was observed. Patients with an initial rhythm of PEA had an increased rate of ROSC (48.6% vs. 21.5%, OR 3.45 (1.56, 7.62)) but not survival to discharge (5.9% vs. 2.6%), OR 2.35 (0.38, 14.7) with early Epi. In a multivariable analysis of bystander witnessed arrests, early Epi was associated with a higher rate of ROSC (OR 3.20 (1.75, 5.88) but not survival to discharge (OR 1.48 (0.50, 4.36)). No improvement in ROSC or secondary outcomes was noted in patients with other arrest rhythms or un-witnessed arrest with Early Epi. Conclusions Within the limitations of our study, this data suggests improved rates of ROSC with early Epi administration during OHCA resuscitation, but this study lacks adequate sample size to demonstrate impact on survival to discharge. Large prospective trials are needed to further delineate the benefit of early Epi administration in OHCA.</description><subject>Aged</subject><subject>Cardiac arrest</subject><subject>Cardiopulmonary Resuscitation</subject><subject>Databases, Factual</subject><subject>Emergency</subject><subject>Emergency Medical Services</subject><subject>Epinephrine</subject><subject>Epinephrine - administration & dosage</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>Multivariate Analysis</subject><subject>Out-of-Hospital Cardiac Arrest - mortality</subject><subject>Out-of-Hospital Cardiac Arrest - therapy</subject><subject>Outcome</subject><subject>Patient Outcome Assessment</subject><subject>Retrospective Studies</subject><subject>Survival</subject><subject>Time Factors</subject><subject>Vasoconstrictor Agents - administration & dosage</subject><issn>0300-9572</issn><issn>1873-1570</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNUcFq3DAQFaEl2Sb9hWDIpRdvRtLKWlMolJC2gUChbS69CHk0JtrYlivZgf37ytk00J4Kg0aCN-89vWHsgsOaA68ud-tIaU7oJzv5MKwFcLmGXEIesRXfallypeEVW4EEKGulxQl7k9IOAKSq9TE7EVIJuRVyxX5-s6N3BY1-oPE-5rOwrveDT1N8oi98P8bwSKkgG7t9EeYJQ5-ffljuZWjL-5DGbKYr0EbnLRY2ZofTGXvd2i7R2-d-yu4-Xf-4-lLefv18c_XxtkQFm6m0rgEFiKBtIwRqh7BBp4TSRG3VqgZrqkDV0KBQsm74ZquQsHYCG9vWUp6ydwfe7PPXnIVN7xNS19mBwpwMl1WldL19gr4_QDGGlCK1Zoy-t3FvOJglXLMzf4VrlnAN5BLL9Pmz0Nz05F5m_6SZAdcHAOXvPnqKJhPRgOR8JJyMC_4_hT78w4NdXgna7oH2lHZhjkNO1HCThAHzfdnzsmaeO9dKyd_g86rN</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Koscik, C</creator><creator>Pinawin, A</creator><creator>McGovern, H</creator><creator>Allen, D</creator><creator>Media, D.E</creator><creator>Ferguson, T</creator><creator>Hopkins, W</creator><creator>Sawyer, K.N</creator><creator>Boura, J</creator><creator>Swor, R</creator><general>Elsevier Ireland Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20130701</creationdate><title>Rapid epinephrine administration improves early outcomes in out-of-hospital cardiac arrest</title><author>Koscik, C ; Pinawin, A ; McGovern, H ; Allen, D ; Media, D.E ; Ferguson, T ; Hopkins, W ; Sawyer, K.N ; Boura, J ; Swor, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c504t-adb050cc07ab22c7dc04cd5257eef6f5bc9e60590bc2539b1485cec9d2cbaf933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Aged</topic><topic>Cardiac arrest</topic><topic>Cardiopulmonary Resuscitation</topic><topic>Databases, Factual</topic><topic>Emergency</topic><topic>Emergency Medical Services</topic><topic>Epinephrine</topic><topic>Epinephrine - administration & dosage</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>Multivariate Analysis</topic><topic>Out-of-Hospital Cardiac Arrest - mortality</topic><topic>Out-of-Hospital Cardiac Arrest - therapy</topic><topic>Outcome</topic><topic>Patient Outcome Assessment</topic><topic>Retrospective Studies</topic><topic>Survival</topic><topic>Time Factors</topic><topic>Vasoconstrictor Agents - administration & dosage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Koscik, C</creatorcontrib><creatorcontrib>Pinawin, A</creatorcontrib><creatorcontrib>McGovern, H</creatorcontrib><creatorcontrib>Allen, D</creatorcontrib><creatorcontrib>Media, D.E</creatorcontrib><creatorcontrib>Ferguson, T</creatorcontrib><creatorcontrib>Hopkins, W</creatorcontrib><creatorcontrib>Sawyer, K.N</creatorcontrib><creatorcontrib>Boura, J</creatorcontrib><creatorcontrib>Swor, R</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Resuscitation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Koscik, C</au><au>Pinawin, A</au><au>McGovern, H</au><au>Allen, D</au><au>Media, D.E</au><au>Ferguson, T</au><au>Hopkins, W</au><au>Sawyer, K.N</au><au>Boura, J</au><au>Swor, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rapid epinephrine administration improves early outcomes in out-of-hospital cardiac arrest</atitle><jtitle>Resuscitation</jtitle><addtitle>Resuscitation</addtitle><date>2013-07-01</date><risdate>2013</risdate><volume>84</volume><issue>7</issue><spage>915</spage><epage>920</epage><pages>915-920</pages><issn>0300-9572</issn><eissn>1873-1570</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Abstract Introduction Early administration of epinephrine (Epi) improves outcomes in animal models of cardiac arrest, but there is limited time-dependent clinical data regarding its benefit. Objective Our objective was to assess whether timing of Epi administration was associated with improved outcomes after out of hospital cardiac arrest (OHCA). Methods We performed a retrospective analysis of a cardiac arrest database from a suburban EMS system from November 2005 to April 2011. Data was abstracted from EMS run sheets, including drug treatment, route and timing of drug administration, and other Utstein variables. Our primary outcome was return of spontaneous circulation (ROSC). Secondary outcomes measured were survival to hospital admission and discharge. For analysis, data were dichotomized according to timing of Epi administration: early Epi group (defined as 911 call to Epi administration of ≤10 min) and late Epi group (>10 min). Further, exploratory analyses were conducted looking at subgroups sorted by initial rhythm and whether the arrest was witnessed. Wilcoxon rank sum tests, chi-square tests, 95% confidence intervals, and multi-variable regression were used for statistical analysis. Results We reviewed 809 patients from study communities: 123 patients were excluded, leaving a sample size of 686 for study analysis. The mean time from 911-Epi was 14.3 ± 5.5 min, with 155 (22.6%) receiving early Epi. Key arrest and treatment characteristics were similar between groups. Patients who received early Epi were more likely to have ROSC (32.9% vs. 23.4%, OR 1.59 (1.07, 2.38)), however, no significant increase in survival to admission or discharge was observed. Patients with an initial rhythm of PEA had an increased rate of ROSC (48.6% vs. 21.5%, OR 3.45 (1.56, 7.62)) but not survival to discharge (5.9% vs. 2.6%), OR 2.35 (0.38, 14.7) with early Epi. In a multivariable analysis of bystander witnessed arrests, early Epi was associated with a higher rate of ROSC (OR 3.20 (1.75, 5.88) but not survival to discharge (OR 1.48 (0.50, 4.36)). No improvement in ROSC or secondary outcomes was noted in patients with other arrest rhythms or un-witnessed arrest with Early Epi. Conclusions Within the limitations of our study, this data suggests improved rates of ROSC with early Epi administration during OHCA resuscitation, but this study lacks adequate sample size to demonstrate impact on survival to discharge. Large prospective trials are needed to further delineate the benefit of early Epi administration in OHCA.</abstract><cop>Ireland</cop><pub>Elsevier Ireland Ltd</pub><pmid>23523823</pmid><doi>10.1016/j.resuscitation.2013.03.023</doi><tpages>6</tpages></addata></record> |
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| subjects | Aged Cardiac arrest Cardiopulmonary Resuscitation Databases, Factual Emergency Emergency Medical Services Epinephrine Epinephrine - administration & dosage Female Humans Male Multivariate Analysis Out-of-Hospital Cardiac Arrest - mortality Out-of-Hospital Cardiac Arrest - therapy Outcome Patient Outcome Assessment Retrospective Studies Survival Time Factors Vasoconstrictor Agents - administration & dosage |
| title | Rapid epinephrine administration improves early outcomes in out-of-hospital cardiac arrest |
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