Comparative Evaluation of Stroke Triage Algorithms for Emergency Medical Dispatchers "MeDS"


Phase N/A Results N/A

Trial Description

This study will compare the diagnostic accuracy of Card 28 stroke protocol to Card 28 and Cincinnati Stroke Scale, when used by emergency medical dispatchers to interrogate a 911 call suggestive of stroke.
The authors hypothesize that a combination of Card 28 plus the Cincinnati Stroke Scale (CSS) will improve the diagnostic accuracy of emergency medical dispatchers for stroke.

Trial Stopped: The study design was changed to a prospective cohort study due to difficulties in using a randomized approach in an emergency setting


Trial Design

  • Observation: Cohort
  • Perspective: Prospective
  • Sampling: Probability Sample

Trial Population

The target study population consists of all 911 callers with symptoms suggestive of stroke in the participating county. Specifically, the accessible population for this study is the group of patients whose 911 calls are answered and interrogated by the emergency medical dispatchers at the County Communication Center, Santa Clara.


Type Measure Time Frame Safety Issue
No outcomes associated with this trial.