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Prehospital dispatch assessment of stroke
Stefanie R Ellison1, Matt C Gratton, Robert A Schwab
1Department of Emergency Medicine, Truman Medical Center, University of Missouri-Kansas City School of Medicine, USA.
Missouri Medicine
|March 17, 2004
Summary
Emergency Medical Service (EMS) dispatchers and paramedics showed moderate accuracy in diagnosing stroke, with paramedics demonstrating higher agreement with emergency physicians than dispatchers.
Area of Science:
- Emergency Medicine
- Neurology
- Public Health
Background:
- Timely and accurate stroke diagnosis is critical for effective treatment.
- Emergency Medical Services (EMS) play a vital role in initial patient assessment.
- Assessing the diagnostic accuracy of EMS personnel is essential for improving stroke care pathways.
Purpose of the Study:
- To evaluate the diagnostic accuracy of EMS dispatchers and paramedics in identifying stroke.
- To compare the assessment accuracy of EMS personnel against emergency physicians (EPs).
Main Methods:
- Retrospective analysis of 191 patients meeting inclusion criteria.
- Comparison of stroke diagnoses made by dispatchers and paramedics with final EP diagnoses.
- Calculation of sensitivity and specificity for dispatcher and paramedic stroke assessments.
Main Results:
- EMS dispatchers correctly identified stroke in 50% of cases compared to EPs.
- Paramedics achieved 70% agreement with EPs in diagnosing stroke.
- Sensitivity for acute stroke detection was similar for dispatchers (61%) and paramedics (64%), but specificity differed (20% vs. 63% respectively).
Conclusions:
- Paramedic stroke assessment accuracy is moderate and superior to dispatcher accuracy when compared to EPs.
- While sensitivity is comparable, paramedic specificity in stroke diagnosis is significantly higher.
- Improving EMS diagnostic capabilities can enhance patient outcomes through earlier and more accurate stroke identification.