ABCD2 score

Introduction

Age, Blood pressure, Clinical features, Duration, Diabetes [ABCD2] score for stroke risk after TIA

Indications

• used to predict risk of stroke after transient ischemic attack (TIA)

Clinical significance

• patients with TIA & ABCD2 score >= 3 should be hospitalized

Procedure

Age:

• O if < 60 years
• 1 if >= 60 years

Blood Pressure:

• 1 if systolic BP >140 mm Hg &/or diastolic BP >90 mm Hg

Clinical Features:

• 0 if no speech disturbance or weakness
• 1 if speech disturbance without weakness
• 2 if unilateral weakness

Duration:

• 0 if < 10 minutes
• 1 if 10-59 minutes
• 2 if > 59 minutes

Diabetes mellitus:

• 0 if non-diabetic
• 1 if diabetic

Interpretation

• maximum score is 7
• score > 2 is associated with significantly increased risk of stroke within 90 days of TIA
• no ABCD2 score cutoff reliably predicts TIA patients at risk for stroke

More general terms

• numerical rating scale (NRS)

More specific terms

• ATP-binding cassette sub-family D member 2; adrenoleukodystrophy-related protein; hALDR; adrenoleukodystrophy-like 1 (ABCD2, ALD1, ALDL1, ALDR, ALDRP)

Additional terms

• Canadian TIA Score