Emergency medical services outcomes project (EMSOP) II: Developing the foundation and conceptual models for out-of-hospital outcomes research

Daniel W. Spaite, Ronald Maio, Herbert G. Garrison, Jeffrey S. Desmond, Mary Ann Gregor, Ian G. Stiell, C. Gene Cayten, John L. Chew, Ellen J. MacKenzie, David R. Miller, Patricia J. O'Malley

Research output: Contribution to journalArticle

Abstract

Development of methodologically acceptable outcomes models for emergency medical services (EMS) is long overdue. In this article, the Emergency Medical Services Outcomes Project proposes a conceptual framework that will provide a foundation for future EMS outcomes research. The "Episode of Care Model" and the "Out-of-Hospital Unit of Service Model" are presented. The Episode of Care Model is useful in conditions in which interventions and outcomes, especially survival and major physiologic dysfunction, are linked in a time-dependent manner. Conditions such as severe trauma, anaphylaxis, airway obstruction, respiratory arrest, and nontraumatic cardiac arrest are amenable to this methodology. The Out-of-Hospital Unit of Service Model is essentially a subunit of the Episode of Care Model. It is valuable for evaluating conditions that have minimal-to-moderate therapeutic time dependency. This model should be used when studying outcomes limited to the out-of-hospital interval. An example of this is pain management for injuries sustained in motor vehicle crashes. These models can be applied to a wide spectrum of conditions and interventions. With the scrutiny of health care expenditures ever increasing, the identification of clinical interventions that objectively improve patient outcome takes on growing importance. Therefore, the development, dissemination, and use of meaningful methodologies for EMS outcomes research is key to the future of EMS system development and maintenance.

Original languageEnglish (US)
Pages (from-to)657-663
Number of pages7
JournalAnnals of emergency medicine
Volume37
Issue number6
DOIs
StatePublished - Jan 1 2001

ASJC Scopus subject areas

  • Emergency Medicine

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    Spaite, D. W., Maio, R., Garrison, H. G., Desmond, J. S., Gregor, M. A., Stiell, I. G., Cayten, C. G., Chew, J. L., MacKenzie, E. J., Miller, D. R., & O'Malley, P. J. (2001). Emergency medical services outcomes project (EMSOP) II: Developing the foundation and conceptual models for out-of-hospital outcomes research. Annals of emergency medicine, 37(6), 657-663. https://doi.org/10.1067/mem.2001.115215