Rowe, Fiona J 
ORCID: 0000-0001-9210-9131, Dent, Joseph, Allen, Frank, Hepworth, Lauren R ORCID: 0000-0001-8542-9815 and Bates, Rachel
(2020)
Development of V-FAST: a vision screening tool for ambulance staff.
Journal of Paramedic Practice, 12 (8).
pp. 324-331.
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Abstract
<jats:sec><jats:title>Background:</jats:title><jats:p> About two-thirds of stroke survivors experience visual problems and most patients who have a stroke limited to the occipital lobe will have visual impairments only. </jats:p></jats:sec><jats:sec><jats:title>Aim:</jats:title><jats:p> The V-FAST screening tool, which assesses visual symptoms, eye movements, visual field and visual extinction, and a training package to improve diagnostic accuracy of identifying visual impairment in hyperacute strokes were developed and evaluated. </jats:p></jats:sec><jats:sec><jats:title>Methods:</jats:title><jats:p> The educational package was developed through focus groups. The pilot study screened patients with suspected strokes in prehospital settings; the V-FAST tool was used with 43 of these patients. Each participant was also assessed in hospital using the National Institutes of Health Stroke Scale (NIHSS) and the score compared to V-FAST screening results to determine sensitivity and specificity. </jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p> The education package includes detailed instructions with video. In the pilot study, V-FAST detected visual impairment in 75.9% of FAST-positive and 80% of FAST-negative strokes. Sensitivity and specificity compared to NIHSS were 85.7% and 42.1% respectively. </jats:p></jats:sec><jats:sec><jats:title>Conclusion:</jats:title><jats:p> V-FAST has good sensitivity to detect vision impairment when screening for possible strokes. The added education package facilitates greater knowledge and understanding of potential visual problems caused by stroke. </jats:p></jats:sec>
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Brain Disorders, Clinical Research, Eye Disease and Disorders of Vision, Neurosciences, Stroke, 4 Detection, screening and diagnosis, 4.2 Evaluation of markers and technologies, Stroke, Eye |
| Divisions: | Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Population Health |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 20 Mar 2024 16:52 |
| Last Modified: | 20 Mar 2024 16:52 |
| DOI: | 10.12968/jpar.2020.12.8.324 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3179550 |
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