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ABCD2 score for TIA

Description: The ABCD2 scoring system for assessing stroke risk after a TIA (transient ischemic attack); formatted as an Epic Smart Phrase.

Stroke risk after transient ischemic attack.

  • A. Age > 60 years = +1
  • B. Blood pressure > 140/90 mmHg: +1 for hypertension at presentation
  • C. Clinical features including unilateral weakness (+2), speech disturbance without weakness (+1)
  • D. Duration of TIA between10–59 minutes (+1), >60 minutes (+2).
  • D. Diabetes (+1).

Stroke risk at 2, 7 and 90 days

  • 0-3: low risk
  • 4-5: moderate risk
  • 6-7: high risk

Not that stroke risk is independent of mechanism whether cardioembolic, a watershed infarct, lacunar infarct, or other mechanism.

References:

  1. Rothwell PM, Giles MF, Flossmann E, Lovelock CE, Redgrave JN, Warlow CP, Mehta Z. A simple score (ABCD) to identify individuals at high early risk of stroke after transient ischaemic attack. Lancet. 2005 Jul 2-8;366(9479):29-36.
  2. Johnston SC, Rothwell PM, Nguyen-Huynh MN, Giles MF, Elkins JS, Bernstein AL, Sidney S. Validation and refinement of scores to predict very early stroke risk after transient ischaemic attack. Lancet. 2007 Jan 27;369(9558):283-92.

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