Английская Википедия:ABCD² score
Шаблон:Short description Шаблон:Infobox diagnostic The ABCD2 score is a clinical prediction rule used to determine the risk for stroke in the days following a transient ischemic attack (TIA, a condition in which temporary brain dysfunction results from oxygen shortage in the brain).[1][2] Its usefulness was questioned in a 2015 review as it was not found to separate those who are at low from those who are at high risk of future problems.[3] A high score correctly predicted 87% of the people who did have a stroke in the following 7 days but also many people who did not have problems.[3]
The ABCD2 score is based on five parameters (age, blood pressure, clinical features, duration of TIA, and presence of diabetes); scores for each item are added together to produce an overall result ranging between zero and seven.[1] People found to have a high score are often sent to a specialist sooner.[1] Other clinical risk factors, such as atrial fibrillation and anticoagulation treatment, as well as ongoing or recurrent TIA, are also relevant.[1]
The ABCD2 score was proposed in 2007 as a modified version of the ABCD score of 2005 (the ABCD score did not consider the presence of diabetes).[4][5][6] In the largest study based on emergency department testing of the ABCD2 score in an acute setting, the score performed poorly in both high-risk and low-risk patients. The study found the score to be 31.6% sensitive in high-risk patients (score >5) and only 12.5% specific in low-risk patients (score ≤2).[7]
Scoring system
Age | Blood Pressure | Clinical Features | Duration of TIA |
Diabetes | |
---|---|---|---|---|---|
no point | <60 years | normal | no speech disturbance and no unilateral (one-sided) weakness | <10 minutes | no diabetes |
1 point | ≥60 years | raised (≥140/90 mmHg) |
speech disturbance present but no unilateral weakness | 10–59 minutes | diabetes present |
2 points | – | – | unilateral weakness | ≥60 minutes | – |
- For example, a person aged 60 (1 point) with normal blood pressure (0 point) and without diabetes (0 point) who experienced a TIA lasting 10 minutes (1 point) with a speech disturbance but no weakness on one side of the body (1 point) would score a total of 3 points.
Interpretation
The risk for stroke can be estimated from the ABCD2 score as follows:
- Score 1-3 (low)
- 2 day risk = 1.0%
- 7 day risk = 1.2%
- Score 4-5 (moderate)
- 2 day risk = 4.1%
- 7 day risk = 5.9%
- Score 6–7 (high)
- 2 day risk = 8.1%
- 7 day risk = 11.7%
References
External links
- ABCD2 score online calculator Шаблон:Webarchive
- ABCD2 Score for TIA with expert insights