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Anterior communicating artery aneurysm surgery

Patients with very small ruptured ACoA aneurysms can be safely and effectively treated with endovascular coiling. However, smaller ACoA aneurysms still require surgical clipping. A smaller aneurysm size limits the use of endovascular coiling 1).

The surgical approach may be difficult because of the complex arterial relationship, perforator preservation, frequent association between aneurysms and AcoA anomaly, and the potential for cognitive dysfunction. Especially, the high positioned ACoA aneurysms or posterior superior directed AcoA aneurysms have an additional complicating features. They need more brain retraction or their neck is usually associated intimately with the hypothalamic or infundibular perforators and frequently, one or both A2 segments densely adherent to the body of the aneurysm 2) 3) 4) 5).

There are two main types of approaches for anterior communicating artery aneurysms, namely pterional approach and an interhemispheric approach 6) 7).

A pterional approach is the most common for aneurysm surgery, not only for anterior circulation aneurysms but also for basilar tip aneurysms. There are some variations for the interhemispheric approach including bifrontal, unifrontal, basal interhemispheric, and transcrista galli interfalcine approaches.

see Pterional approach for anterior communicating artery aneurysm

see Interhemispheric approach for anterior communicating artery aneurysm.


Zhao B, Xing H, Fan L, Tan X, Zhong M, Pan Y, Wan J. Endovascular coiling versus surgical clipping of very small ruptured anterior communicating artery aneurysms. World Neurosurg. 2019 Mar 18. pii: S1878-8750(19)30735-1. doi: 10.1016/j.wneu.2019.03.074. [Epub ahead of print] PubMed PMID: 30898747.
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anterior_communicating_artery_aneurysm_surgery.txt · Last modified: 2019/03/25 15:36 by administrador