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Updated: Mar 21, 2026
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Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
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Intracranial post-embolization residual or recurrent aneurysms: Current management using surgical clipping
Lei Shi1, Yongjie Yuan1, Yunbao Guo1
1Department of Neurosurgery, First Hospital of Jilin University, P.R. China.
Summary
Post-embolization residual or recurrent aneurysms (PERRAs) are challenging to treat. Surgical clipping offers satisfactory outcomes for specific PERRA types when carefully selected.
Area of Science:
- Neurosurgery
- Interventional Neuroradiology
- Vascular Neurology
Background:
- Post-embolization residual or recurrent aneurysms (PERRAs) frequently occur after intracranial aneurysm embolization.
- PERRAs often necessitate repeat interventions, with surgical clipping being a complex alternative for unsuitable cases.
Purpose of the Study:
- To review the treatment of PERRAs using surgical clipping.
- To categorize PERRAs to guide treatment selection.
Main Methods:
- Retrospective review of PERRA cases treated with surgical clipping.
- Classification of PERRAs into three types based on coil migration and packing.
Main Results:
- PERRAs commonly affect anterior and posterior communicating arteries.
- Type I and II PERRAs are amenable to direct clipping.
- Type III PERRAs may require trapping, wrapping, or revascularization.
Conclusions:
- Surgical clipping is a viable treatment for selected PERRAs.
- Careful case selection and technique are crucial for successful surgical clipping of PERRAs.
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