Internal Carotid Artery Anterior (or Dorsal) Wall Aneurysm : Clinical Features and Treatment(Topics of Therapy for Cerebral Aneurysms)

2010 ◽  
Vol 19 (2) ◽  
pp. 112-119
Author(s):  
Akira Satoh
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Clinical Features ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Special Issue ◽  
Dorsal Wall

Clinical features of ocular ischemic syndrome in atherosclerotic lesions of the internal carotid artery

2018 ◽  
Vol 16 (5) ◽  
pp. 173-178
Author(s):  
V. V. Tuzlaev ◽  
◽  
V. V. Egorov ◽  
I. Z. Kravchenko ◽  
G. P. Smoliakova ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Clinical Features ◽  
Internal Carotid ◽  
Ocular Ischemic Syndrome ◽  
Atherosclerotic Lesions ◽  
Ischemic Syndrome

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.

scholarly journals Combination Treatment for Rapid Growth of a Saccular Aneurysm on the Internal Carotid Artery Dorsal Wall: Case Report

2014 ◽  
Vol 16 (3) ◽  
pp. 303 ◽  
Author(s):  
Jae Hyuk Choi ◽  
Tae Hong Kim ◽  
Sang Keun Park ◽  
Yong Soon Hwang ◽  
Hyung Shik Shin ◽  
...  
Keyword(s):  
Case Report ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Combination Treatment ◽  
Rapid Growth ◽  
Internal Carotid ◽  
Saccular Aneurysm ◽  
Dorsal Wall

Horner Syndrome

2019 ◽  
pp. 193-198
Author(s):  
Matthew J. Thurtell ◽  
Robert L. Tomsak
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Clinical Features ◽  
Internal Carotid ◽  
Carotid Artery Dissection ◽  
Diagnostic Evaluation ◽  
Artery Dissection ◽  
Internal Carotid Artery Dissection ◽  
Horner Syndrome

Horner syndrome can be caused by a lesion anywhere along the oculosympathetic pathway. Although there may be other signs that help with localization of the lesion, the syndrome often occurs in isolation. In this chapter, we begin by reviewing the anatomy of the oculosympathetic pathway. We next describe the clinical features of Horner syndrome, which include ipsilateral miosis and eyelid ptosis. We then discuss the role and potential pitfalls of pharmacologic pupil testing in the diagnostic evaluation of Horner syndrome. We review the potential causes for Horner syndrome, with a focus on causes for acute isolated painful Horner syndrome, such as internal carotid artery dissection. Lastly, we discuss the workup, management, and potential complications of internal carotid artery dissection.

scholarly journals 2D parametric contrast time-density analysis for the prediction of complete aneurysm occlusion at six months’ post-flow diversion stent

2020 ◽  
Vol 26 (4) ◽  
pp. 468-475 ◽  
Author(s):  
Ahmed E Hussein ◽  
Meghana Shownkeen ◽  
Andre Thomas ◽  
Christopher Stapleton ◽  
Denise Brunozzi ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Density Ratio ◽  
Area Under The Curve ◽  
Cerebral Aneurysms ◽  
Flow Diversion ◽  
Aneurysm Occlusion ◽  
Occlusion Rate ◽  
Time Density

Objective Indications for the treatment of cerebral aneurysms with flow diversion stents are expanding. The current aneurysm occlusion rate at six months ranges between 60 and 80%. Predictability of complete vs. partial aneurysm occlusion is poorly defined. Here, we evaluate the angiographic contrast time-density as a predictor of aneurysm occlusion rate at six months’ post-flow diversion stents. Methods Patients with unruptured cerebral aneurysms proximal to the internal carotid artery terminus treated with single flow diversion stents were included. 2D parametric parenchymal blood flow software (Siemens-Healthineers, Forchheim, Germany) was used to calculate contrast time-density within the aneurysm and in the proximal adjacent internal carotid artery. The area under the curve ratio between the two regions of interests was assessed at baseline and after flow diversion stents deployment. The area under the curve ratio between completely vs. partially occluded aneurysms at six months’ follow-up was compared. Results Thirty patients with 31 aneurysms were included. Mean aneurysm diameter was 8 mm (range 2–28 mm). Complete occlusion was obtained in 19 aneurysms. Younger patients ( P = 0.006) and smaller aneurysms ( P = 0.046) presented higher chance of complete obliteration. Incomplete occlusion of the aneurysm was more likely if the area under the curve contrast time-density ratio showed absolute ( P = 0.001) and relative percentage ( P = 0.001) decrease after flow diversion stents deployment. Area under ROC curve was 0.85. Conclusion Negative change in the area under the curve ratio indicates less contrast stagnation in the aneurysm and lower chance of occlusion. These data provide a real-time analysis after aneurysm treatment. If validated in larger datasets, this can prompt input to the surgeon to place a second flow diversion stents.

Aneurysms at Nonbranching Sites in the Supraclinoid Portion of the Internal Carotid Artery: Internal Carotid Artery Trunk Aneurysms

Neurosurgery ◽  
2000 ◽  
Vol 47 (3) ◽  
pp. 578-586 ◽  
Author(s):  
Akira Ogawa ◽  
Michiyasu Suzuki ◽  
Kuniaki Ogasawara
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Clinicopathological Features ◽  
Clinical Entity ◽  
Dorsal Wall ◽  
Different Shapes ◽  
Aneurysmal Bleeding ◽  
Supraclinoid Internal Carotid Artery

ABSTRACT OBJECTIVE Aneurysms at nonbranching sites in the supraclinoid internal carotid artery (ICA), known as blood blister-like aneurysms or ICA anterior or dorsal wall aneurysms, are not well understood. To clarify this clinical entity, 7408 patients with subarachnoid hemorrhage who were treated during a 5-year period were analyzed. METHODS Forty-eight patients had aneurysms that were intraoperatively confirmed to be located at a nonbranching site in the supraclinoid portion of the ICA. Neuroradiological and clinicopathological features and outcomes were studied. RESULTS The aneurysms were divided into the “blister type,” with a blood blister-like configuration and fragile walls, and the “saccular type,” with a saccular configuration and a relatively firm neck, like ordinary berry aneurysms. The most frequent origin was the anteromedial wall for both types. ICA dissection was associated only with the blister type, and hypertension was more frequent with the blister type (P = 0.0978). The preoperative conditions of the patients were the same, but the outcomes for patients with blister-type aneurysms were worse, because of frequent intra- and postoperative aneurysmal bleeding. Saccular-type aneurysms were safely clipped. Treatment of blister-type aneurysms by clipping on wrapping material achieved good results, but ICA trapping (P = 0.0952), clipping (P = 0.0146), and wrapping (P = 0.0110) were associated with much worse results. CONCLUSION Blister-type and saccular-type aneurysms have different shapes and wall characteristics. The saccular type can be treated by clipping, whereas the blister type requires clipping on wrapping material. ICA trunk aneurysms may be a better designation to express the diversity of these aneurysms, rather than ICA blood blister-like or anterior or dorsal wall aneurysms.

scholarly journals The Management of Very Small/Blister Internal Carotid Artery Aneurysms

2011 ◽  
Vol 17 (4) ◽  
pp. 431-434 ◽  
Author(s):  
D.E.J. Le Feuvre ◽  
A.G. Taylor
Keyword(s):  
Carotid Artery ◽  
Natural History ◽  
Internal Carotid Artery ◽  
Vessel Wall ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Endovascular Management ◽  
Flow Change ◽  
Small Blister

Blood blister aneuryms are uncommon lesions that have a poor natural history. Because there is no clear aneurysmal sac to treat they remain challenging lesions to manage whether the approach is endovascular or surgical. Although the management of intracranial cerebral aneurysms has changed subsequent to the results published by the ISAT trial, there still exist groups of aneurysms which do not lend themselves to endovascular management. There are recent reports of successful endovascular management using flow diverting approaches but experience is limited and relying on flow change may be insufficient to prevent re-rupture. Surgery when possible offers the advantage of immediate vessel wall reconstruction.

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