Microsurgical treatment of ophthalmic segment aneurysms

Indocyanine Green Videoangiography and Intraoperative Catheter Digital Subtraction Angiography in the Treatment of Intracranial Aneurysms: A Consecutive Series of 235 Cases

“…Under certain circumstances, DSA may be more reliable than ICG, including cases where vessels are difficult to visualize because of local hemorrhage or when they are outside the field of the microscope, and when assessing for residual neck in calcified and thrombosed aneurysms. In addition, studies have analyzed the value of clip repositioning rates for specific aneurysms and found ICG results to be questionable for aneurysms located on the anterior communicating artery (AComA) and ophthalmic artery specifically [37,[44][45].…”

Microsurgical and Endovascular Treatments for Ruptured Paraclinoid Aneurysms

“…Maybe improving surgical techniques is the key for effective prevention of microsurgical complications, as suggested by some investigators. [24][25][26][27][28][29] In the past 2 decades, endovascular procedures have emerged as an alternative and effective treatment for paraclinoid aneurysms. Thornton et al 30 demonstrated that the morbidity and mortality rates of the endovascular approach for paraclinoid aneurysms were equal to or better than those in published series of similar aneurysms treated surgically.…”

Death in a postpartum woman caused by an exceptionally rare case of concurrently rupture of bilateral non-traumatic carotid-ophthalmic aneurysm associated with bilateral acute subdural hematoma

“…According to Bouthiliers classification [7] this region where the OA has its origin represents the 6th segment of the ICA, known as the ophthalmic segment that extends from the distal dural ring to the posterior communicating artery [7][8][9], having an average length of 9.6 mm [10]. The superior hypophyseal artery also emerges from the same segment [9].…”

“…According to Bouthiliers classification [7] this region where the OA has its origin represents the 6th segment of the ICA, known as the ophthalmic segment that extends from the distal dural ring to the posterior communicating artery [7][8][9], having an average length of 9.6 mm [10]. The superior hypophyseal artery also emerges from the same segment [9]. From anatomical point of view, the OA has the following segments: intracranial, that has 0.5 -9.5mm in length [11] where the artery is located below the optic nerve and presents one or two angles [11]; intracanalicular, having a length of between 5 -7mm [11] where the artery runs inferolateral to the optic nerve [2,3,11,12]; intraorbital, in the first part of this segment the artery continues the inferolateral course to the optic nerve [2,11,12], then in the second part the artery crosses above (in most of the cases) or below the optic nerve [2,11,12] and in the third part it runs tortuously along the medial wall of the orbit [3].…”

“…Aneurysms that originate in the ophthalmic segment at or around the emergence of the ophthalmic artery are known as carotid-ophthalmic aneurysms [1, [13][14][15][16] or more commonly, just ophthalmic aneurysms [9,13,17]. The later nomenclature could create misunderstandings, these morphoclinical entities should not be confused with the aneurysms originating in the ophthalmic artery trunk and its branches which are known as peripheral ophthalmic artery aneurysms [13], or "true" OA aneurysms [15] .…”