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Updated: Apr 28, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia

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Long-term risk of stroke after transient ischaemic attack: a hospital-based validation of the ABCD² rule

Rose Galvin1, Penka A Atanassova, Nicola Motterlini

  • 1HRB Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland, 123 St, Stephens Green, Dublin 2, Republic of Ireland. rosegalvin@rcsi.ie.

BMC Research Notes
|June 3, 2014
PubMed

Insights

The ABCD2 rule accurately predicts stroke risk in Bulgarian TIA patients over three years. This validated tool aids clinicians in managing TIA and preventing future strokes.

Area of Science:

  • Neurology
  • Clinical Prediction Rules
  • Stroke Prevention

Background:

  • The ABCD2 rule is a validated clinical prediction tool for stroke risk.
  • It assesses stroke risk based on clinical factors following a transient ischemic attack (TIA).

Purpose of the Study:

  • To validate the ABCD2 rule's performance in a Bulgarian hospital setting.
  • To assess the rule's predictive accuracy for stroke up to three years post-TIA.

Main Methods:

  • A cohort study included 89 patients admitted for a first TIA.
  • Neurologists documented baseline data and ABCD2 scores.
  • Discrimination and calibration were analyzed using logistic regression and the Hosmer-Lemeshow test.

Main Results:

  • Seven strokes occurred within the first year, and six more within three years.
  • The ABCD2 rule showed good predictive (OR=1.58) and discriminative (AUCROC=0.72) performance.
  • Moderate calibration performance was observed at the three-year follow-up.

Conclusions:

  • The ABCD2 rule demonstrated good predictive and discriminative accuracy for stroke up to three years post-TIA in Bulgarian patients.
  • The ABCD2 rule is a valuable, quick tool for clinicians managing TIA patients long-term.
Abstract

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