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Updated: May 10, 2026
11:58
Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Outcomes for unruptured ophthalmic segment aneurysm surgery.
Leon Tat Lai1, Michael Kerin Morgan
1Australian School of Advanced Medicine, Macquarie University, 2 Technology Place, Macquarie University, Sydney, NSW 2109, Australia. Drleonlai@gmail.com
Summary
Surgery for unruptured ophthalmic segment aneurysms is effective, with acceptable complication rates comparable to other aneurysm locations. Microsurgery offers robust repair, making it a viable treatment option.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Cerebrovascular Surgery
Background:
- Ophthalmic segment aneurysms pose surgical challenges due to their location near critical neurovascular structures.
- Assessing the safety and efficacy of surgical intervention for these specific aneurysms is crucial.
Purpose of the Study:
- To evaluate the effectiveness of surgical repair for unruptured ophthalmic segment aneurysms.
- To determine the complication rates and prognostic factors associated with this surgical approach.
Main Methods:
- Retrospective review of a consecutive case series of patients undergoing surgical repair for unruptured ophthalmic segment aneurysms (April 1992 - August 2012).
- Analysis of clinical outcomes, operative complications, angiographic results, and risk factors.
Main Results:
- Of 182 aneurysms in 169 patients, 6.4% experienced permanent neurological deficits, including 6 cases of visual loss. Mortality was 0.6%.
- Complete obliteration was achieved in 95.1% of treated aneurysms. Age, aneurysm size, and temporary clipping were negative predictors of outcome.
- Transient morbidities included CSF rhinorrhea and oculomotor nerve palsy.
Conclusions:
- Surgical repair of unruptured ophthalmic segment aneurysms demonstrates acceptable morbidity and mortality rates, comparable to aneurysms in other locations.
- Open microsurgery provides robust aneurysm repair, presenting a valuable treatment option with outcomes similar to alternative therapies.
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