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Updated: Jun 2, 2026
11:58
Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Recurrent intracranial aneurysms after successful neck clipping
Mohamed el-Beltagy1, Carl Muroi, Peter Roth
1Department of Neurosurgery, University of Cairo, Egypt.
World Neurosurgery
|April 16, 2011
Summary
Recurrent cerebral aneurysms after complete clipping are rare, occurring at an average of 13.3 years post-surgery. A classification system for these recurrent aneurysms may aid in management decisions.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Medical Imaging
Background:
- Recurrent aneurysms pose a challenge after initial surgical treatment.
- Understanding recurrence mechanisms is crucial for patient management.
Purpose of the Study:
- To describe the authors' experience with recurrent aneurysms following complete clipping.
- To discuss the mechanisms and management of these recurrent cerebral aneurysms.
Main Methods:
- Retrospective analysis of 1016 patients undergoing aneurysm clipping (1993-2007).
- Review of cases with recurrent aneurysms after initial complete clipping.
Main Results:
- Nine patients experienced recurrent aneurysms after complete clipping, with a mean recurrence time of 13.3 years.
- Recurrence types were classified based on the relationship between the new aneurysm neck and the old clip.
- Management included repeat craniotomy, reclipping, extracranial-intracranial bypass, and endovascular parent artery occlusion.
Conclusions:
- The incidence of recurrent aneurysms after complete clipping is approximately 0.02% per year.
- Recurrence can occur significantly later, up to 25 years after initial clipping.
- A three-type classification system may assist in selecting appropriate surgical strategies for recurrent aneurysms.
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