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Updated: Jul 2, 2026
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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Mechanism of tuberothalamic infarction
1Department of Neurology, National Core Research Center for Nanomedical Technology, Yonsei University College of Medicine, Seoul, Korea.
European Journal of Neurology
|August 23, 2008
Summary
Tuberothalamic artery (TTA) infarctions are typically caused by small vessel disease when isolated. However, when TTA infarctions occur with other brain regions, cardioembolism and vertebral artery atherosclerosis are common causes.
Area of Science:
- Neurology
- Vascular Neurology
- Neuroimaging
Background:
- The tuberothalamic artery (TTA) supplies the paramedian thalamus.
- It uniquely originates from the posterior communicating artery (p-comA), linking the vertebrobasilar and carotid systems.
Purpose of the Study:
- To investigate the underlying mechanisms of acute tuberothalamic artery (TTA) infarction.
- To differentiate causes based on the presence of coexisting infarctions.
Main Methods:
- Retrospective analysis of 23 patients with acute TTA infarction from a stroke registry.
- Evaluation of infarction patterns and potential embolic sources.
Main Results:
- 61% of patients had infarctions beyond the TTA territory, frequently in the posterior thalamoperforating artery area.
- Embolic sources (cardiac or atherosclerotic) were common in patients with multiple infarctions (79%).
- Isolated TTA infarctions were predominantly due to small vessel occlusions (8/9 patients).
Conclusions:
- Isolated TTA infarctions are rare and typically result from small vessel disease.
- Coexisting infarctions suggest embolic origins, with vertebral artery atherosclerosis being a significant factor.
- The vertebrobasilar system plays a more critical role in TTA infarction than the carotid system.
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