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A Modified Model Preparation for Middle Cerebral Artery Occlusion Reperfusion
Published on: May 31, 2024
Would self-expanding stent occlude middle cerebral artery perforators?
Thomas W Leung1, Simon C H Yu, Wynnie W M Lam
1Department of Medicine and Therapeutics, Division of Neurology, Prince of Wales Hospital, The Chinese University of Hong Kong. drtleung@cuhk.edu.hk
Stroke
|February 3, 2009
Summary
Self-expanding stents for middle cerebral artery (MCA) stenosis show no risk to perforators. Follow-up MRI scans revealed no new infarcts, indicating safety for patients with recurrent ischemic symptoms.
Area of Science:
- Neurology
- Interventional Neuroradiology
- Vascular Neurology
Background:
- Perforator infarction is a significant risk associated with intracranial stenting.
- The exact cause of late perforator occlusion (radial force vs. restenosis) remains unclear.
Purpose of the Study:
- To evaluate the safety of self-expanding stents in preventing perforator infarction.
- To assess the risk of late perforator occlusion after stenting for middle cerebral artery (MCA) stenosis.
Main Methods:
- Retrospective analysis of baseline and follow-up MRI scans (>or=4 months) in patients undergoing self-expanding stenting.
- Patients had MCA stenosis >or=60% and recurrent ischemic symptoms.
- Incidence of new infarcts in the ipsilateral striatocapsular region was recorded.
Main Results:
- Technical success achieved in 23 of 24 patients.
- No new perforator territory infarcts were observed on follow-up MRI.
- Patients experienced no further transient ischemic attacks (TIA) or stroke during a median 15-month follow-up.
Conclusions:
- Self-expanding stent use in high-grade MCA stenosis appears safe regarding perforator territory.
- This stenting technique may not significantly increase the risk of perforator infarction.
