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ABCD2-score

German: ABCD2-Score

1 Definition

The ABCD2-score is a prognostic scoring system that can be used to help with estimating the risk of a stroke following a transitory ischemic attack (TIA). The score takes five independent risk factors into consideration:

Each of these factors is scored with a certain score (details shown in table). These scores are then added up giving a result between 0 and 7 points.

2 Calculation

A Age < 60 years ≥ 60 years
B Blood pressure <140 syst. and <90 diast. mm Hg >140 syst. or >90 diast. mmHg
C Clinical features (symptoms) other complaints impaired speech without one-sided weakness one-sided weakness
D Duration of symptoms < 10 min 10–59 min ≥ 60 min
D Diabetes mellitus not present present
Points 0 1 2

3 Risk assessment

The ABCD2-score was developed through four cohort studies in California and Oxford which included a total of 4908 TIA-patients. The risk of having another stroke within two days of a TIA was determined to be as following:

  • 6 or 7 points: High two day risk (8%)
  • 4 or 5 points: Medium two day risk (4%)
  • 0 to 3 points: Low two day risk (1%)[1]

4 Sources

  1. Initial evaluation and management of transient ischemic attack and minor ischemic stroke, In: UpToDate, Version 19.2, May 2011

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