ADD-ONS / SCALES
ABCD2 score
Created 23/03/2021, last revision 24/02/2023
- transient ischemic attack (TIA) is a medical emergency defined as a brief episode of neurological dysfunction due to focal brain, spinal cord, or retinal ischemia without acute infarction or tissue injury (negative imaging)
- TIA requires prompt evaluation and treatment to reduce the risk of subsequent stroke (about 1 in 3 people with TIA will eventually have a stroke)
- the ABCD2 score is a simple clinical prediction tool that helps stratify patients presenting with a TIA according to their risk of stroke
- ≥ 4 points ⇒ high stroke risk; hospitalization is recommended (2-day stroke risk is > 4%, 7-day stroke risk: 5.9%!)
- always use this score in conjunction with clinical judgment and brain and vascular imaging findings!
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ABCD2 score
(max. 7 points, high stroke risk ≥ 4 )
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|
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A Age ≥ 60 years
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1
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B BP ≥ 140/90 mmHg (either SBP ≥ 140 or DBP ≥ 90)
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1
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C Clinical features of the TIA
Unilateral weakness
Speech disturbance without weakness
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2
1
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D Duration of symptoms
<10 minutes 10-59 minutes
≥ 60 minutes |
0
1
2
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D History of Diabetes
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1
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0-3
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low risk
2-Day Stroke Risk: 1.0% 7-Day Stroke Risk: 1.2% 90-Day Stroke Risk: 3.1% |
outpatient management |
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4-5
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medium risk
2-Day Stroke Risk: 4.1% 7-Day Stroke Risk: 5.9% 90-Day Stroke Risk: 9.8% |
hospitalization rather recommended |
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6-7
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high risk
2-Day Stroke Risk: 8.1%
7-Day Stroke Risk: 11.7% 90-Day Stroke Risk: 17.8% |
hospitalization recommended |
