Diagnostic value of ABCD2 and ABCD3-I risk scoring systems in determining one-month risk of stroke in patients with transient ischemic attack: An observational study

Abstract

Objective: To compare the diagnostic value of the ABCD2 and ABCD3-I scoring systems in predicting the development of a 30-day neurological event in adult patients with transient ischemic attack (TIA) presenting to the emergency department. Methods: The study was observational and prospective and was conducted in a single center. The diagnostic values of the ABCD2 and ABCD3-I scores in predicting a neurological event within one month were compared in patients diagnosed with TIA in the emergency department. Results: A statistically significant difference was observed between groups with or without stroke within one month in terms of both the ABCD2 and ABCD3-I scores (P=0.044 and P=0.029, respectively). There was no statistically significant difference between the patients with and without a recurrent TIA within one month in relation to the ABCD2 score (P=0.934), but a statistically significant difference was found in the ABCD3-I scores of these groups (P<0.001). Conclusions: Both the ABCD2 and ABCD3-I scoring systems could predict ischemic stroke within 30 days of TIA, the ABCD3-I score is more effective than the ABCD2 score in the prediction of TIA recurrence.

Keywords

• transient ischemic attack; stroke; emergency services; risk reduction behavior; risk assessment; risk factors