Transient symptoms with infarction (TSI)

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Transient symptoms with infarction (TSI). This is TIA with infarct on magnetic resonance imaging (MRI). Fully referenced neurology checklist.

Clinical features

  • This is TIA with infarct on magnetic resonance imaging (MRI)
  • It is detected on diffusion weighted imaging (DWI)
  • Most infarcts are small: 96% are <1mL
  • About half of the episodes last <1 hour: about two-thirds last <10 minutes
  • The quick recovery is due to the brain compensating rapidly

Stroke risk

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References

  1. Arsava EM, Furie KL, SchwammLH, Sorensrn AG, Ay H. P prediction of early stroke risk in transient symptoms with infarction: relevance to the new tissue-based definition. Stroke 2011; 42: 2186-2190.
  2. Arsava EM, Bayrlee A, Vangel M, et al. Severity of leukoaraiosis determines clinical phenotype after brain infarction. Neurology 2012; 77:55-61.
  3. Song B, Pei L, Fang H, et al. Validation of the RRE-90 scale to predict stroke risk after transient symptoms with infarction: a prospective cohort study. PLoS One 2015; 10:e0137425.

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