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Predictive value of ABCD2 and ABCD3-I scores in TIA and minor stroke in the stroke unit setting

Michael Knoflach1, Wilfried Lang2, Leonhard Seyfang2

  • 1From the Department of Neurology (M.K., B.M., T.T., S. Kiechl, J.W.), Innsbruck Medical University; Department of Neurology (W.L., S. Krebs, J.F.), Hospital Barmherzige Brueder; Danube University Krems and Gesundheit Österreich GmbH/BIQG (L.S.); Department of Neurology (E.F.), Hospital Rudolfstiftung, Vienna; Department of Neurology (S.O.), University Clinic St Pölten; Department of Neurology (G.D.), Hospital Wilhelminenspital, Wien; Department of Neurology (T.S.-H.), Medical University of Graz; Department of Clinical Neurosciences and Preventive Medicine (M.B.), Danube University Krems; and Department of Neurology (M.B.), Karl Landsteiner University Hospital Tulln, Austria. Michael.Knoflach@i-med.ac.at.

Neurology
|July 31, 2016
PubMed

Insights

Risk scores like ABCD2 and ABCD3-I effectively predict early and 3-month stroke recurrence in TIA patients treated in specialized stroke units. Clinical presentation, symptom duration, and imaging are key predictors.

Area of Science:

  • Neurology
  • Stroke Medicine
  • Clinical Risk Stratification

Background:

  • Stroke risk scores (e.g., ABCD2, ABCD3-I) are established for transient ischemic attack (TIA) and minor stroke, primarily in outpatient settings.
  • The validity of these scores in highly specialized stroke unit care requires investigation.

Purpose of the Study:

  • To evaluate the utility of ABCD2 and ABCD3-I scores for predicting early and 3-month stroke recurrence in patients admitted to stroke units.
  • To identify key components of these scores that are most predictive in a specialized stroke unit setting.

Main Methods:

  • Prospective documentation of ABCD2 and ABCD3-I scores in 5,237 TIA and minor stroke patients admitted to Austrian stroke units.
  • Analysis of 3-month follow-up data for 2,457 patients to assess early and later stroke events.

Main Results:

  • Early stroke occurred in 2.4% and 3-month stroke in 4.2% of patients.
  • Stroke risk increased with higher ABCD2 and ABCD3-I scores, reaching 4.8% and 16.7% for early stroke, and 8.0% and 23.8% for 3-month stroke, respectively.
  • Clinical presentation (C), symptom duration (D), and imaging (I) were significant predictors, while age, blood pressure, and diabetes were not.

Conclusions:

  • Standard ABCD2 and ABCD3-I scores are valuable tools for estimating stroke recurrence risk in TIA and minor stroke patients managed in specialized stroke units.
  • The clinical presentation, symptom duration, and imaging components (C, D, I) are the most crucial elements of these scores in this specific care setting.
Abstract

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