What is the ABCD3 scoring system for transient ischemic attack (TIA)?

Updated: Dec 03, 2018
  • Author: Ashish Nanda, MD; Chief Editor: Andrew K Chang, MD, MS  more...
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One group has developed 2 variations of the ABCD2 score that may improve risk stratification after TIA in secondary settings. The ABCD3 score assigns 2 points for dual TIA (an earlier TIA within 7 days of the index event), and the ABCD3 imaging score adds stenosis of at least 50% on carotid imaging (2 points) and abnormal DWI (2 points). However, further validation and study are needed before use of the ABCD3 score can be recommended. [34]

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