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anterior_communicating_artery_aneurysm_epidemiology

Anterior communicating artery aneurysm epidemiology

The anterior communicating artery aneurysm cause aneurysmal subarachnoid hemorrhage, in about 21.0%~25.5% of spontaneous subarachnoid hemorrhage 1) 2) 3).

Saccular aneurysms are most common in the anterior communicating artery (ACoA).

Frequently it is a wide necked aneurysm with an irregular shape, incorporate parent vessels, and are associated with significant variations in vascular anatomy.


The most common site of rupture of very small intracranial aneurysms was the anterior communicating artery (ACoA). Rupture of small and very small aneurysms is unpredictable, and treatment may be considered in selected high-risk patients according to factors such as young age, ACoA location, and hypertension 4).


A1 segment hypoplasia of the anterior cerebral artery is frequently observed in patients with anterior communicating artery aneurysms. The effect of this anatomical variant on ACoA aneurysm morphology is not well understood 5).

1)
Suzuki M, Fujisawa H, Ishihara H, Yoneda H, Kato S, Ogawa A. Side selection of pterional approach for anterior communicating artery aneurysms–surgical anatomy and strategy. Acta Neurochir (Wien) 2008;150:31–39. 39.
2)
Kimura T, Morita A, Shirouzu I, Sora S. Preoperative evaluation of unruptured cerebral aneurysms by fast imaging employing steady-state acquisition image. Neurosurgery. 2011;69:412–419. discussion 419-420.
3)
Kwon SC, Park JB, Shin SH, Sim HB, Lyo IU, Kim Y. The Efficacy of Simultaneous Bilateral Internal Carotid Angiography during Coil Embolization for Anterior Communicating Artery Aneurysms. J Korean Neurosurg Soc. 2011;49:257–261
4)
Lee GJ, Eom KS, Lee C, Kim DW, Kang SD. Rupture of Very Small Intracranial Aneurysms: Incidence and Clinical Characteristics. J Cerebrovasc Endovasc Neurosurg. 2015 Sep;17(3):217-22. doi: 10.7461/jcen.2015.17.3.217. Epub 2015 Sep 30. PubMed PMID: 26526401; PubMed Central PMCID: PMC4626345.
5)
Rinaldo L, McCutcheon BA, Murphy M, Bydon M, Rabinstein AA, Lanzino G. 360 Relationship of A1 Segment Hypoplasia to Anterior Communicating Artery Aneurysm Morphology and Risk Factors for Rupture. Neurosurgery. 2016 Aug;63 Suppl 1:207. doi: 10.1227/01.neu.0000489849.55193.67. PubMed PMID: 27399558.
anterior_communicating_artery_aneurysm_epidemiology.txt · Last modified: 2019/03/25 15:53 by administrador