A large anomalous anterior choroidal artery associated with internal carotid artery-posterior communicating artery aneurysm.

1998 ◽  
Vol 21 (4) ◽  
pp. 299-301 ◽  
Author(s):  
Torn Koyama ◽  
Hirohiko Gibo ◽  
Shigeaki Kobayashi
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Aneurysm ◽  
Posterior Communicating Artery ◽  
Anterior Choroidal Artery ◽  
Posterior Communicating Artery Aneurysm ◽  
Anterior Choroidal ◽  
Choroidal Artery

scholarly journals Delayed brain infarction caused by mechanical compression of the anterior choroidal artery after coil embolization for a large internal carotid-posterior communicating artery aneurysm: A case report

2020 ◽  
Vol 8 ◽  
pp. 2050313X2093375
Author(s):  
Naoki Wakuta ◽  
Satoshi Yamamoto
Keyword(s):  
Coil Embolization ◽  
Internal Carotid ◽  
Brain Infarction ◽  
Artery Aneurysm ◽  
Posterior Communicating Artery ◽  
Anterior Choroidal Artery ◽  
Mechanical Compression ◽  
Posterior Communicating Artery Aneurysm ◽  
Anterior Choroidal ◽  
Choroidal Artery

A 65-year-old male received coil embolization for a large internal carotid-posterior communicating artery aneurysm. Pre- and postoperative angiography at surgery demonstrated that the ipsilateral anterior choroidal artery branched from the internal carotid artery near the distal side of the aneurysm, and elevated and expanded on the aneurysmal dome, but was clearly visualized. Three days following endovascular treatment, the patient presented hemiparesis on the left side, with brain infarction in the territory of the right anterior choroidal artery despite antithrombotic therapy. The delayed brain infarction was likely caused by a reduction in anterior choroidal artery perfusion caused by mechanical compression following a postoperative increase in internal carotid-posterior communicating artery aneurysmal volume during intra-aneurysmal thrombosis. Transient volume expansion after coil embolization for intracranial aneurysms is rarely reported as a cause of brain infarction. It is important to recognize these arteries as potential postoperative complication risks, and consider the use of open surgery to avoid this risk.

scholarly journals Anomalous Origin of the Anterior Choroidal Artery

2009 ◽  
Vol 15 (1) ◽  
pp. 73-76 ◽  
Author(s):  
A. Nishio ◽  
M. Yoshimura ◽  
S. Yamauchi ◽  
S. Masamura ◽  
T. Kawakami ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Rare Case ◽  
Internal Carotid ◽  
Posterior Communicating Artery ◽  
Anomalous Origin ◽  
Anterior Choroidal Artery ◽  
Anterior Choroidal ◽  
Choroidal Artery

We describe a very rare case of anomalous origin of the anterior choroidal artery. In our case the anterior choroidal artery arises from the internal carotid artery proximal to the posterior communicating artery.

scholarly journals Supraclinoid Internal Carotid Artery Aneurysm Clipping Complicated by Aneurysm Dome Origin of the Anterior Choroidal Artery: 2-Dimensional Operative Video

2020 ◽  
Vol 19 (1) ◽  
pp. E41-E41
Author(s):  
Benjamin K Hendricks ◽  
Robert F Spetzler
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Video Recording ◽  
Artery Aneurysm ◽  
High Morbidity ◽  
Anterior Choroidal Artery ◽  
Anterior Choroidal ◽  
Choroidal Artery ◽  
Supraclinoid Internal Carotid Artery

Abstract Supraclinoid internal carotid artery (ICA) aneurysms most commonly arise at the origin of the posterior communicating or anterior choroidal artery. The unique angioarchitecture presented in this case involved the anterior choroidal artery (AChA) originating from the dome of a supraclinoid ICA aneurysm. Treatment is associated with high morbidity because of the eloquent parenchyma perfused by the AChA. Therefore, the preservation of flow within the AChA during clipping is paramount. Anterior choroidal syndrome, comprising hemiplegia, hemianesthesia, and hemianopsia, conveys a significant morbidity. This syndrome is observed in the setting of AChA sacrifice and can be observed in a delayed manner after clipping. Anterior choroidal syndrome is of uncertain etiology but is associated with AChA infarction. This patient presented with tinnitus and was found to have an incidental supraclinoid ICA aneurysm with AChA originating from the aneurysmal dome. A right orbitozygomatic craniotomy was performed for a transsylvian approach to the aneurysm. A fenestrated clip was applied to occlude the aneurysmal portion of the ICA up to the point of AChA origin. A curved clip was then used to occlude the AChA segment of the aneurysm, providing patency to the AChA takeoff along the ICA. Patency of the AChA and ICA was confirmed with intraoperative angiography, and the patient had a favorable clinical outcome. This case exemplified an excellent surgical clipping of a challenging supraclinoid ICA aneurysm involving the need to preserve a vessel off the aneurysm dome. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.

scholarly journals “Two-coil technique” for embolization of small internal carotid artery aneurysms incorporating the origin of the anterior choroidal artery

2016 ◽  
Vol 22 (4) ◽  
pp. 396-401 ◽  
Author(s):  
Young Jin Heo ◽  
Ku Hyun Yang ◽  
Sung Chul Jung ◽  
Jung Cheol Park ◽  
Deok Hee Lee
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Aneurysm ◽  
Anterior Choroidal Artery ◽  
Single Center Experience ◽  
Internal Carotid Artery Aneurysm ◽  
Anterior Choroidal ◽  
Choroidal Artery

Purpose The purpose of this article is to evaluate the efficacy, safety and stability of the “two-coil technique.” Materials and methods We evaluated a single-center experience by using a two-coil technique, which is a variation of the multiple-microcatheter technique in the treatment of a small internal carotid artery aneurysm with its sac incorporated with the origin of the anterior choroidal artery. Six consecutive patients with small ICA aneurysms with its sac incorporated with origin of the anterior choroidal artery and treated with the two-coil technique were included in this study. We finished the embolization with only two coils introduced via two different microcatheters without any other device assistance in all cases. Embolization status was determined at immediate postoperative and follow-up angiography after six months. Results The two-coil technique was technically successful in five of six cases; one case was converted to surgical clipping because of persistent occlusion of the anterior choroidal artery after several attempts. On follow-up study, all five cases showed stable occlusion status without recanalization or residual aneurysm. Conclusions The two-coil technique has potential to be used for coiling small aneurysms, particularly where there is an important branch incorporated into the sac or neck of the aneurysm.

The Perforating Branches of the Internal Carotid Artery: The Microsurgical Anatomy of Their Extracerebral Segments

Neurosurgery ◽  
1990 ◽  
Vol 26 (3) ◽  
pp. 472-479 ◽  
Author(s):  
Slobodan V. Marinkovié ◽  
Milan M. Milisavljevié ◽  
Zorica D. Marinkovié
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Microsurgical Anatomy ◽  
Great Care ◽  
Anterior Choroidal Artery ◽  
Frequent Site ◽  
Anterior Choroidal ◽  
Choroidal Artery

Abstract The perforating branches of the internal carotid artery (ICA) were examined in 30 forebrain hemispheres. These branches were present in all the cases studied, and varied from 1 to 6 in number (mean, 3.1). Their diameters ranged from 70 to 470 Mm (mean, 243 Mm). The perforating branches arose from the choroidal segment of the ICA, that is, from its caudal surface (52.3%), caudolateral surface (34.1%), or caudomedial surface (13.6%). They rarely originated from the bifurcation point of the ICA (10%). The distance of the remaining 90% of the perforators from the summit of the ICA measured between 0.6 and 4.6 mm. The perforating branches most often originated as individual vessels, and less frequently from a common stem with another vessel or by sharing the same origin site with another perforator or with the anterior choroidal artery. The bifurcation of the ICA, which is a frequent site for cerebral aneurysms, is surrounded by many perforating branches. Hence, great care must be taken to avoid damage to these important vessels during operations in that region.

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