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Updated: May 19, 2026
11:58
Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Petrosal approaches to posterior circulation aneurysms
Bradley A Gross1, Daryoush Tavanaiepour, Rose Du
1Department of Neurological Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.
Neurosurgical Focus
|August 3, 2012
Summary
Petrosal approaches offer a valuable surgical option for complex posterior circulation aneurysms. These techniques provide excellent exposure, leading to high rates of aneurysm occlusion and favorable long-term outcomes.
Area of Science:
- Neurosurgery
- Vascular Neurosurgery
Background:
- Complex posterior circulation aneurysms pose significant management challenges.
- Traditional endovascular and microsurgical techniques have limitations for these lesions.
Observation:
- Petrosal approaches provide combined supra- and infratentorial exposure, ideal for basilar trunk or apex aneurysms.
- A review of 23 reports detailed 61 aneurysms treated with petrosal approaches.
- Early morbidity was noted, but aneurysm occlusion rates were high (95%).
Findings:
- Petrosal approaches demonstrate laudable long-term outcomes for challenging posterior circulation aneurysms.
- Accumulating surgical experience is expected to reduce complication rates.
Implications:
- Petrosal approaches are indispensable for managing complex posterior circulation aneurysms.
- Continued refinement of these techniques will enhance neurosurgical capabilities.
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