II. Indications
- Prehospital identification of suspected CVA patients with large vessel Occlusion
- Triage tool to transport directly to tertiary center for possible mechanical thrombectomy
III. Criteria
- Major Criteria: Weakness (required)
- Patient holds up arms for 10 seconds
- Mild drift, severe focal weakness or paralysis
- Present: Evaluate minor criteria as below
- Absent (no focal weakness): Negative VAN Score; not consistent with large vessel Occlusion
- Minor Criteria (one of the following in addition to focal weakness)
- Visual disturbance or
- Aphasia or
- Neglect
IV. Interpretation
V. Efficacy
- Original study (Teleb, 2017)
- Test Sensitivity: 100%
- Test Specificity: 90%