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Updated: Aug 7, 2026
05:32
Transient Middle Cerebral Artery Occlusion Model of Stroke
Published on: August 11, 2023
Predictive implications of recurrent transient ischemic attacks in large-artery atherosclerosis
Seo Hyun Kim1, Sang Won Han, Ji Hoe Heo
1Department of Neurology, National Core Research Center for Nanomedical Technology, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea.
Cerebrovascular Diseases (Basel, Switzerland)
|June 22, 2006
Summary
Recurrent transient ischemic attacks (TIAs) may stem from different mechanisms than single TIAs. Patients with recurrent TIAs are more prone to large-artery atherosclerosis, suggesting distinct pathophysiological pathways.
Area of Science:
- Neurology
- Vascular Neurology
- Cerebrovascular Disease
Background:
- The underlying mechanisms of recurrent transient ischemic attacks (R-TIAs) compared to single transient ischemic attacks (S-TIAs) remain unclear.
- Investigating potential differences in pathophysiology is crucial for accurate diagnosis and treatment.
Purpose of the Study:
- To determine if recurrent TIAs (R-TIAs) exhibit distinct pathophysiological mechanisms compared to single TIAs (S-TIAs).
- To identify factors associated with R-TIAs to aid in etiological diagnosis.
Main Methods:
- A cohort of 85 patients admitted for TIAs over two years was divided into R-TIA and S-TIA groups.
- Data from registries, medical records, and imaging were retrospectively reviewed and compared between groups.
Main Results:
- R-TIA patients showed less cardiac embolic sources, shorter symptom duration, and more significant arterial stenoses.
- Logistic regression identified symptom duration < 10 min, > or = 50% relevant artery stenosis, and absence of cardiac embolic sources as independent factors for R-TIAs.
Conclusions:
- Recurrent TIAs appear to have distinct pathophysiological mechanisms from single TIAs.
- A higher likelihood of large-artery atherosclerosis in R-TIA patients suggests a specific etiological pathway.
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