TIA Prognosis: Risk of Stroke by 90 Days After Presentation

Risk stratify stroke risk within 90 days of TIA presentation

TIA Prognosis: Risk of Stroke by 90 Days After Presentation

Risk stratify stroke risk within 90 days of TIA presentation

TIA Prognosis: Risk of Stroke by 90 Days After Presentation

Risk stratify stroke risk within 90 days of TIA presentation

TIA Prognosis: Risk of Stroke by 90 Days After Presentation

Risk stratify stroke risk within 90 days of TIA presentation

1.Patient more than 60 years old?
2.Patient has diabetes mellitus?
3.TIA lasted more than 10 minutes?
4.Patient experienced weakness during TIA?
5.Patient experienced speech problems with TIA?
Created by on 27/01/2020

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About this Calculator

Presenting to the Emergency Department with a Transient Ischemic Attack (TIA) is a high-risk complaint that is associated with increased risk of stroke after discharge. Johnston et al. (2000) identified 1707 patients presenting to the emergency department with TIA and followed them 90 days after discharge. The study found five significant patient factors that were associated with increased risk of stroke, with more factors present being associated with more significant risk.

This is a useful risk calculator to help clinician prognostication. It can be useful for facilitating expedited work-ups for patients at higher risk and ensure consultant follow-up is more rapid. Additionally, it may provide perspective to patients and families regarding the risk profile of their TIA. Notably, there have been subsequent scores including the ABCD2 score for TIA that is commonly used to risk stratify patients as well.

Variable & Associated Points

  • Patient more than 60 years old (Yes +1, No 0)
  • Patient has diabetes mellitus (Yes +1, No 0)
  • TIA lasted more than 10 minutes (Yes +1, No 0)
  • Patient experienced weakness during TIA (Yes +1, No 0)
  • Patient experienced speech problems with TIA (Yes +1, No 0)

Results: Sum of total points

Approximate 90 Day Risk of Stroke

  • 0 Points – Negligible risk
  • 1 Point – 3% Risk
  • 2 Points – 7% Risk
  • 3 Points – 11% Risk
  • 4 Points – 15% Risk
  • 5 Points – 34% Risk

References

Johnston SC, Gress DR, Browner WS, Sidney S.

Short-term prognosis after emergency department diagnosis of TIA.

JAMA 2000 December 13, 284 (22): 2901-6

1. Patient more than 60 years old?

Created by on 27/01/2020

By using this site you acknowledge that you have read, understand, and agree to be bound by our terms of use and privacy policy. All content and tools are for educational use only, are not meant to be a substitute for professional advice and should not be used for medical diagnosis and/or medical treatment.

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