Stroke Info

ABCD^2  (ABCD squared) post TIA stroke risk assessment tool

AGE:  greater than or equal to 60 years – 1 point

Blood Pressure when first assessed after TIA.  Systolic greater than or equal to 140, diastolic greater than or equal to 90 – 1 point

Clinical Features:  unilateral weakness – 2 points, isolated speech disturbance – 1 point, other – zero

Duration of TIA symptoms:  greater than or equal to 60 minutes – 2 points, 10 to 59 minutes – 1 point, <10 minutes zero

Diabetes present – 1 point

Estimated two day stroke risks determined by the ABCD^2 score:

Score 6 to 7:  High two day stroke risk (8.1%)
Score 4 to 5:  Moderate two day stroke risk (4.1%)
Score 0 to 3:  Low two day stroke risk (1.0%)
Score < 1:  Very low two day stroke risk (0.0%)

Reference:  Johnston, SC, et.al.  Validation and Refinement of scores to predict very early stroke risk afer TIA.  Lancet 2007: 269:283.

BMHGT Stroke Information Page

Early Stroke Management Guidelines AHA/ASA

Stroke Prevention Recommendation Update AHA/ASA

Stroke syndromes, mimics & chameleons

NIH Stroke Scale

TPA for Acute Ischemic Stroke NEJM 1995

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