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Updated: Jun 12, 2026
14:58
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Coil Embolization for Ruptured Cerebral Aneurysms of 2x3 mm Diameter
Summary
Embolizing small ruptured cerebral aneurysms (2x3 mm) with coils is challenging but achievable. Techniques like steam-shaped microcatheters and specific coil selection improve safety and efficacy, reducing risks like perforation.
Area of Science:
- Neurosurgery
- Interventional Neuroradiology
- Vascular Neurology
Background:
- Small ruptured cerebral aneurysms (2x3 mm) pose significant embolization challenges due to high perforation risk.
- Traditional coil embolization techniques often struggle with these diminutive lesions.
Purpose of the Study:
- To report techniques and pitfalls for successfully embolizing small (2x3 mm) ruptured cerebral aneurysms.
- To evaluate the safety and efficacy of specific microcatheter and coil strategies.
Main Methods:
- Coil embolization was attempted in 24 patients with small ruptured cerebral aneurysms.
- Techniques included steam-shaped microcatheter tips, balloon neck remodeling, and simulation of volume embolization ratio (VER).
- GDC 10 softs, soft SRs, and Ultrasofts were utilized; microcatheter placement at the aneurysm neck was prioritized.
Main Results:
- Three procedures were aborted due to catheterization failure, with clipping surgery performed instead.
- One case of aneurysm perforation occurred due to incorrect coil length and microcatheter tip placement.
- Minor infarction occurred in one patient; two aneurysms recanalized, one requiring re-treatment.
- Mean VER was 33.9%; 81% of patients achieved good or moderate recovery at 6 months.
Conclusions:
- Steam shaping microcatheter tips for stable neck placement is crucial.
- Selecting appropriate coils (GDC 10 soft, Ultrasoft) and simulating VER are recommended.
- These techniques enhance safety and success rates for embolizing small ruptured cerebral aneurysms.
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