🫀 ASTRAL Score (Ischemic Stroke)
UseWhen to use: acute ischemic stroke prognostication when age, NIHSS, and admission factors known.
StrataHigher ASTRAL → higher chance of 3-month mRS>2 in published models.
LimitsWhen not to use: as sole thrombolysis eligibility rule. · Pitfall: adding age incorrectly as categorical. · Follow acute stroke pathways.
SourceNtaios G et al. ASTRAL
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
Age+NIHSS+mods.
When to use
When to use: acute ischemic stroke prognostication when age, NIHSS, and admission factors known.
How it works
Age + NIHSS +2(>3 h delay) +2(VF defect) +1(abnormal glucose) +3(↓LOC).
Key points
- Age+NIHSS+mods.
- mRS>2 risk cue.
- Next: stroke unit care.
References
- Ntaios G et al. ASTRAL
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Age | 72 y |
|---|---|
| NIHSS | 8 |
| Onset-to-admission >3 h | No (0) |
| Any visual field defect | No (0) |
| Glucose >7.3 or <3.7 mmol/L | No (0) |
| Decreased level of consciousness | No (0) |
→ASTRAL80
- Cue：Higher ASTRAL — substantially elevated 3-mo unfavorable (mRS>2) risk cue
- Components：age 72+NIHSS 8+mods 0
| Age | 72 y |
|---|---|
| NIHSS | 8 |
| Onset-to-admission >3 h | Yes (+2) |
| Any visual field defect | Yes (+2) |
| Glucose >7.3 or <3.7 mmol/L | Yes (+1) |
| Decreased level of consciousness | Yes (+3) |
→ASTRAL88
- Cue：Higher ASTRAL — substantially elevated 3-mo unfavorable (mRS>2) risk cue
- Components：age 72+NIHSS 8+mods 8
Verification & sources · governance
FAQ
Frequently asked questions
- Does ASTRAL Score (Ischemic Stroke) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is ASTRAL Score (Ischemic Stroke) calculated in practice? Can you show a worked example?
- Inputs: Age 72 y, NIHSS 8, Onset-to-admission >3 h No (0), Any visual field defect No (0), Glucose >7.3 or <3.7 mmol/L No (0), Decreased level of consciousness No (0) → Result: ASTRAL 80（Cue: Higher ASTRAL — substantially elevated 3-mo unfavorable (mRS>2) risk cue, Components: age 72+NIHSS 8+mods 0） Inputs: Age 72 y, NIHSS 8, Onset-to-admission >3 h Yes (+2), Any visual field defect Yes (+2), Glucose >7.3 or <3.7 mmol/L Yes (+1), Decreased level of consciousness Yes (+3) → Result: ASTRAL 88（Cue: Higher ASTRAL — substantially elevated 3-mo unfavorable (mRS>2) risk cue, Components: age 72+NIHSS 8+mods 8）