Neurology

ABCD3-I Score calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Age ≥60 years

Initial blood pressure ≥140 mm Hg systolic or ≥90 mm Hg diastolic

Clinical features

Symptom duration

Diabetes mellitus

At least one other TIA within 7 days

Ipsilateral internal carotid stenosis ≥50%

Acute diffusion-weighted imaging hyperintensity

Result

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Formula inputs

Age ≥60 years
Initial blood pressure ≥140 mm Hg systolic or ≥90 mm Hg diastolic
Clinical features
Symptom duration
Diabetes mellitus
At least one other TIA within 7 days
Ipsilateral internal carotid stenosis ≥50%
Acute diffusion-weighted imaging hyperintensity

Primary source

Merwick A et al. Addition of brain and carotid imaging to the ABCD² score to identify patients at early risk of stroke after transient ischaemic attack: a multicentre observational study. Lancet Neurol. DOI: 10.1016/S1474-4422(10)70240-4. PMID: 20934388 (2010)

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