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ophthalmic_artery_aneurysm

Ophthalmic artery aneurysm

J.Sales-Llopis

Neurosurgery Service, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL - FISABIO Foundation), Alicante, Spain.

Ophthalmic artery aneurysm” usually refers to a carotid-ophthalmic junction aneurysm 1).

Those that arise from the superomedial aspect of the internal carotid artery just distal to the ophthalmic artery origin and projects superiorly or dorsomedially towards the lateral portion of the optic nerve.

Epidemiology

It is the most common type of paraclinoid aneurysm.

The incidence of ophthalmic artery aneurysms is somewhere between 0.5% and 11% of all intracranial aneurysms 2) 3).

It is a marked female predominance (7:1) and high incidence of multiple intracranial aneurysms (45%) within this population 4).

Unlike usual ophthalmic artery aneurysms, which arise from the junction of the ICA trunk and ophthalmic artery, an ophthalmic artery trunk aneurysm is extremely rare 5) 6).

Classification

Clinical features

Diagnosis

In the angiography a notch can often be observed in the anterior superior medial aspect of giant ophthalmic artery aneurysm due to the optic nerve 7).

Try oblique 25º away from injection side, center beam 3-4 cm above lateral aspect of ipsilateral orbital rim, orient x-ray tube in Towne view. Try submentovertex view.

Treatment

Case reports

Peschillo S, Biraschi F, Diana F, Colonnese C, Marenco M, Delfini R. Aneurysms of the Intracranial Segment of the Ophthalmic Artery Trunk: Case Report and Systematic Literature Review. J Neurol Surg A Cent Eur Neurosurg. 2017 Jul 25. doi: 10.1055/s-0037-1604268. [Epub ahead of print] PubMed PMID: 28743134 8).

1)
Drake CG, Vanderlinden RG, Amacher AL. Carotid-ophthalmic aneurysms. J Neurosurg. 1968 Jul;29(1):24-31. PubMed PMID: 5674088.
2) , 4)
Day A L. Aneurysms of the ophthalmic segment. A clinical and anatomical analysis. J Neurosurg. 1990;72(5):677–691.
3)
Yasargil M G, Gasser J C, Hodosh R M, Rankin T V. Carotid-ophthalmic aneurysms: direct microsurgical approach. Surg Neurol. 1977;8(3):155–165.
5)
Meyerson L, Lazar SJ. Intraorbital aneurysm of the ophthalmic artery. Br J Ophthalmol. 1971 Mar;55(3):199-204. PubMed PMID: 5575224; PubMed Central PMCID: PMC1208221.
6)
Raitta C. Ophthalmic artery aneurysm causing optic atrophy and enlargement of the optic foramen. Br J Ophthalmol. 1968 Sep;52(9):707-9. PubMed PMID: 5725171; PubMed Central PMCID: PMC506674.
7)
Heros RC, Nelson PB, Ojemann RG, Crowell RM, DeBrun G. Large and giant paraclinoid aneurysms: surgical techniques, complications, and results. Neurosurgery. 1983 Feb;12(2):153-63. PubMed PMID: 6835497.
8)
Peschillo S, Biraschi F, Diana F, Colonnese C, Marenco M, Delfini R. Aneurysms of the Intracranial Segment of the Ophthalmic Artery Trunk: Case Report and Systematic Literature Review. J Neurol Surg A Cent Eur Neurosurg. 2017 Jul 25. doi: 10.1055/s-0037-1604268. [Epub ahead of print] PubMed PMID: 28743134.
ophthalmic_artery_aneurysm.txt · Last modified: 2018/02/26 21:01 by administrador