• Henry E Wang, Matthew D Weaver, Nathan I Shapiro, and Donald M Yealy.
• Department of Emergency Medicine, University of Alabama at Birmingham, 619 19th Street South, JTN 266 Birmingham, AL 35249, USA. hwang@uabmc.edu
• Resuscitation. 2010 Feb 1; 81 (2): 193-7.

ObjectiveEmergency Medical Services (EMS) systems play key roles in the rapid identification and treatment of critical illness such as trauma, myocardial infarction and stroke. EMS often provides care for sepsis, a life-threatening sequelae of infection. In this study of Emergency Department patients admitted to the hospital with an infection, we characterized the patients receiving initial care by EMS.MethodsWe prospectively studied patients with suspected infection presenting to a 50,000 visit urban, academic ED from September 16, 2005-September 30, 2006. We included patients who had abnormal ED vital signs or required hospital admission. We identified patients that received EMS care. Between EMS and non-EMS patients, we compared patient age, sex, nursing home residency, vital signs, comorbidities, source of infection, organ dysfunction, sepsis severity and mortality. We analyzed the data using univariate odds ratios, the Wilcoxon rank-sum test and multivariate logistic regression.ResultsOf 4613 ED patients presenting with serious infections, 1576 (34.2%) received initial EMS care. The mortality rate among those transported by EMS was 126/1576 (8.0%) compared to 67/3037 (2.2%) in those who were not. Adjusted mortality was higher for EMS (OR 1.8, 95% CI: 1.3-2.6). Of patients who qualified for protocolized sepsis care in the ED, 99/162 (61.1%) were transported via EMS. EMS patients were more likely to present with severe sepsis (OR 3.9; 3.4-4.5) or septic shock (OR 3.6; 2.6-5.0). EMS patients had higher sepsis acuity (mortality in ED sepsis score 6 vs. 3, p<0.001).ConclusionsEMS provides initial care for over one-third of ED infection patients, including the majority of patients with severe sepsis, septic shock, and those who ultimately die. EMS systems may offer important opportunities for advancing sepsis diagnosis and care.Copyright 2009 Elsevier Ireland Ltd. All rights reserved.

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