January 16, 2009Stroke
ABCD2 Scores and Prediction of Noncerebrovascular Diagnoses in an Outpatient Population
Why the study?
Does the ABCD2 score predict noncerebrovascular diagnoses in patients referred for suspected transient ischemic attack?
Population
3,646 patients referred to transient ischemic attack clinics for suspected cerebrovascular events between…
Design
Cohort
Authors
Discussion
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Member takes
Implication
May aid exclusion of cerebrovascular events in low-score TIA referrals; leaves open whether score-guided triage is safe without prospective validation.
Structured PICO
Does the ABCD2 score predict noncerebrovascular diagnoses in patients referred for suspected transient ischemic attack?
P
Population
3,646 patients referred to transient ischemic attack clinics for suspected cerebrovascular events between August 1992 and January 2005
I
Intervention
ABCD2 score assessment
O
Outcome
Proportion of noncerebrovascular diagnoses for each ABCD2 grade
A low ABCD2 score (0-1) has a high positive predictive value for noncerebrovascular diagnoses in TIA clinics, but its use as a triage tool may misclassify true TIAs.
Limitations
- Potential to misclassify many true transient ischemic attacks
Cite This Study
Quinn et al. (2009) studied this question.