LO005: Association between emergency department chest pain volume and outcomes among patients presenting with chest pain
Introduction: Chest pain is one of the most common reasons for emergency department (ED) visits in developed countries. Patients discharged after ED assessment remain at risk for adverse cardiac events. Although a volume-outcome relationship has been shown for myocardial infarction, it is uncertain...
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Veröffentlicht in: | Canadian journal of emergency medicine 2016-05, Vol.18 (S1), p.S31-S32 |
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description | Introduction: Chest pain is one of the most common reasons for emergency department (ED) visits in developed countries. Patients discharged after ED assessment remain at risk for adverse cardiac events. Although a volume-outcome relationship has been shown for myocardial infarction, it is uncertain whether a similar relationship exists with ED chest pain volume. Accordingly, we aimed to determine whether ED chest pain volume influences outcomes of patients presenting to the ED with chest pain who were discharged home. Methods: This was a retrospective cohort study using population-based data from Ontario, Canada. Patients who were discharged home from an ED in Ontario with a primary diagnosis of chest pain from April 1, 2004 to March 31, 2010 were included. High-risk patients were defined as the presence of diabetes or pre-existing cardiovascular disease, while low-risk patients were defined as the absence of these conditions. ED volume was categorized as low, medium, or high, based on tertiles of annual chest pain patient volume. The primary outcome of this study was all-cause mortality one year after the index ED visit. Mantel-Haenszel Chi-Square was used to compare crude outcome rates. Results: There were 56,767 high-risk patients. The average age was 66 years and 53% were male. All-cause mortality rates were 6.8%, 6.3%, and 6.0% (p=0.028), and rates of hospitalization for acute coronary syndrome were 5.8%, 4.6%, and 4.0% (p |
doi_str_mv | 10.1017/cem.2016.42 |
format | Article |
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Patients discharged after ED assessment remain at risk for adverse cardiac events. Although a volume-outcome relationship has been shown for myocardial infarction, it is uncertain whether a similar relationship exists with ED chest pain volume. Accordingly, we aimed to determine whether ED chest pain volume influences outcomes of patients presenting to the ED with chest pain who were discharged home. Methods: This was a retrospective cohort study using population-based data from Ontario, Canada. Patients who were discharged home from an ED in Ontario with a primary diagnosis of chest pain from April 1, 2004 to March 31, 2010 were included. High-risk patients were defined as the presence of diabetes or pre-existing cardiovascular disease, while low-risk patients were defined as the absence of these conditions. ED volume was categorized as low, medium, or high, based on tertiles of annual chest pain patient volume. The primary outcome of this study was all-cause mortality one year after the index ED visit. Mantel-Haenszel Chi-Square was used to compare crude outcome rates. Results: There were 56,767 high-risk patients. The average age was 66 years and 53% were male. All-cause mortality rates were 6.8%, 6.3%, and 6.0% (p=0.028), and rates of hospitalization for acute coronary syndrome were 5.8%, 4.6%, and 4.0% (p<0.001) among low, medium, and high volume EDs respectively. There were 216,527 low-risk patients. The average age was 64 years and 42% were male. All-cause mortality rates were 2.0%, 1.9%, and 1.6% (p<0.001), and rates of hospitalization for acute coronary syndrome were 1.5%, 1.4%, and 1.0% (p<0.001) among low, medium, and high volume EDs respectively. Conclusion: Higher volume EDs were associated with decreased rates of all-cause mortality and admission for acute coronary syndrome among chest pain patients who were discharged home. Future research should study the reasons for this finding and attempt to improve outcomes in lower volume EDs.</description><identifier>ISSN: 1481-8035</identifier><identifier>EISSN: 1481-8043</identifier><identifier>DOI: 10.1017/cem.2016.42</identifier><language>eng</language><publisher>New York, USA: Cambridge University Press</publisher><subject>Oral Presentations</subject><ispartof>Canadian journal of emergency medicine, 2016-05, Vol.18 (S1), p.S31-S32</ispartof><rights>Copyright © Canadian Association of Emergency Physicians 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Dattani, N.D.</creatorcontrib><creatorcontrib>Koh, M.</creatorcontrib><creatorcontrib>Chong, A.</creatorcontrib><creatorcontrib>Czarnecki, A.</creatorcontrib><creatorcontrib>Ko, D.T.</creatorcontrib><title>LO005: Association between emergency department chest pain volume and outcomes among patients presenting with chest pain</title><title>Canadian journal of emergency medicine</title><addtitle>CJEM</addtitle><description>Introduction: Chest pain is one of the most common reasons for emergency department (ED) visits in developed countries. Patients discharged after ED assessment remain at risk for adverse cardiac events. Although a volume-outcome relationship has been shown for myocardial infarction, it is uncertain whether a similar relationship exists with ED chest pain volume. Accordingly, we aimed to determine whether ED chest pain volume influences outcomes of patients presenting to the ED with chest pain who were discharged home. Methods: This was a retrospective cohort study using population-based data from Ontario, Canada. Patients who were discharged home from an ED in Ontario with a primary diagnosis of chest pain from April 1, 2004 to March 31, 2010 were included. High-risk patients were defined as the presence of diabetes or pre-existing cardiovascular disease, while low-risk patients were defined as the absence of these conditions. ED volume was categorized as low, medium, or high, based on tertiles of annual chest pain patient volume. The primary outcome of this study was all-cause mortality one year after the index ED visit. Mantel-Haenszel Chi-Square was used to compare crude outcome rates. Results: There were 56,767 high-risk patients. The average age was 66 years and 53% were male. All-cause mortality rates were 6.8%, 6.3%, and 6.0% (p=0.028), and rates of hospitalization for acute coronary syndrome were 5.8%, 4.6%, and 4.0% (p<0.001) among low, medium, and high volume EDs respectively. There were 216,527 low-risk patients. The average age was 64 years and 42% were male. All-cause mortality rates were 2.0%, 1.9%, and 1.6% (p<0.001), and rates of hospitalization for acute coronary syndrome were 1.5%, 1.4%, and 1.0% (p<0.001) among low, medium, and high volume EDs respectively. Conclusion: Higher volume EDs were associated with decreased rates of all-cause mortality and admission for acute coronary syndrome among chest pain patients who were discharged home. Future research should study the reasons for this finding and attempt to improve outcomes in lower volume EDs.</description><subject>Oral Presentations</subject><issn>1481-8035</issn><issn>1481-8043</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNptkEtrAyEUhaW00PSx6h9wXybVUWdMdyH0BYFs2vWgzp3EEDWoaZp_X0ND6aKre7jnu5fDQeiOkjEltH0w4MY1oc2Y12doRLmklSScnf9qJi7RVUprQmgtqByhr_mCEPGIpykFY1W2wWMNeQ_gMTiIS_DmgHvYqpgd-IzNClLGW2U9_gybnQOsfI_DLpvgIGHlgl8WO9sCJ7yNkIqwZbe3efXn-gZdDGqT4PY0r9HH89P77LWaL17eZtN5ZSildcU5SCZ108vBiEGAGDQIydqmF6RtaqaYNJzpdkInjGvSUt0aPVBaZMPbYl2j-5-_JoaUIgzdNlqn4qGjpDuW1pXSumNpHa8LXZ1o5XS0_RK6ddhFXxL-y38DMlxwDA</recordid><startdate>201605</startdate><enddate>201605</enddate><creator>Dattani, N.D.</creator><creator>Koh, M.</creator><creator>Chong, A.</creator><creator>Czarnecki, A.</creator><creator>Ko, D.T.</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201605</creationdate><title>LO005: Association between emergency department chest pain volume and outcomes among patients presenting with chest pain</title><author>Dattani, N.D. ; Koh, M. ; Chong, A. ; Czarnecki, A. ; Ko, D.T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1112-44e838b6d8fc5f5e5fbe58376d507623a38c43b791934b071b7cbf11b07647c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Oral Presentations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dattani, N.D.</creatorcontrib><creatorcontrib>Koh, M.</creatorcontrib><creatorcontrib>Chong, A.</creatorcontrib><creatorcontrib>Czarnecki, A.</creatorcontrib><creatorcontrib>Ko, D.T.</creatorcontrib><collection>CrossRef</collection><jtitle>Canadian journal of emergency medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dattani, N.D.</au><au>Koh, M.</au><au>Chong, A.</au><au>Czarnecki, A.</au><au>Ko, D.T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>LO005: Association between emergency department chest pain volume and outcomes among patients presenting with chest pain</atitle><jtitle>Canadian journal of emergency medicine</jtitle><addtitle>CJEM</addtitle><date>2016-05</date><risdate>2016</risdate><volume>18</volume><issue>S1</issue><spage>S31</spage><epage>S32</epage><pages>S31-S32</pages><issn>1481-8035</issn><eissn>1481-8043</eissn><abstract>Introduction: Chest pain is one of the most common reasons for emergency department (ED) visits in developed countries. Patients discharged after ED assessment remain at risk for adverse cardiac events. Although a volume-outcome relationship has been shown for myocardial infarction, it is uncertain whether a similar relationship exists with ED chest pain volume. Accordingly, we aimed to determine whether ED chest pain volume influences outcomes of patients presenting to the ED with chest pain who were discharged home. Methods: This was a retrospective cohort study using population-based data from Ontario, Canada. Patients who were discharged home from an ED in Ontario with a primary diagnosis of chest pain from April 1, 2004 to March 31, 2010 were included. High-risk patients were defined as the presence of diabetes or pre-existing cardiovascular disease, while low-risk patients were defined as the absence of these conditions. ED volume was categorized as low, medium, or high, based on tertiles of annual chest pain patient volume. The primary outcome of this study was all-cause mortality one year after the index ED visit. Mantel-Haenszel Chi-Square was used to compare crude outcome rates. Results: There were 56,767 high-risk patients. The average age was 66 years and 53% were male. All-cause mortality rates were 6.8%, 6.3%, and 6.0% (p=0.028), and rates of hospitalization for acute coronary syndrome were 5.8%, 4.6%, and 4.0% (p<0.001) among low, medium, and high volume EDs respectively. There were 216,527 low-risk patients. The average age was 64 years and 42% were male. All-cause mortality rates were 2.0%, 1.9%, and 1.6% (p<0.001), and rates of hospitalization for acute coronary syndrome were 1.5%, 1.4%, and 1.0% (p<0.001) among low, medium, and high volume EDs respectively. Conclusion: Higher volume EDs were associated with decreased rates of all-cause mortality and admission for acute coronary syndrome among chest pain patients who were discharged home. Future research should study the reasons for this finding and attempt to improve outcomes in lower volume EDs.</abstract><cop>New York, USA</cop><pub>Cambridge University Press</pub><doi>10.1017/cem.2016.42</doi><tpages>2</tpages><oa>free_for_read</oa></addata></record> |
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title | LO005: Association between emergency department chest pain volume and outcomes among patients presenting with chest pain |
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