Experimental induction of cerebral aneurysms in monkeys

1987 ◽  
Vol 67 (6) ◽  
pp. 903-905 ◽  
Author(s):  
Nobuo Hashimoto ◽  
Choegon Kim ◽  
Haruhiko Kikuchi ◽  
Masayuki Kojima ◽  
Yoo Kang ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Anterior Communicating Artery ◽  
Experimental Hypertension ◽  
Content Type ◽  
Experimental Induction ◽  
The Common ◽  
The Brain ◽  
Fine Print

✓ Saccular cerebral aneurysms were successfully induced in two monkeys treated with ligation of the common carotid artery, experimental hypertension, and β-aminopropionitrile feeding. The cerebral aneurysms developed on the large arteries at the base of the brain, such as the anterior communicating artery and the internal carotid artery at the origin of the posterior communicating artery. Because of the similarity of the monkey to man as a species, the present results strongly suggest the significance of postnatal aggravating factors in the development of cerebral aneurysms in man.

Prevalence of cerebral aneurysms in patients with fibromuscular dysplasia: a reassessment

1998 ◽  
Vol 88 (3) ◽  
pp. 436-440 ◽  
Author(s):  
Harry J. Cloft ◽  
David F. Kallmes ◽  
Michelle H. Kallmes ◽  
Jonas H. Goldstein ◽  
Mary E. Jensen ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Fibromuscular Dysplasia ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Chi Square ◽  
Content Type ◽  
Significant Difference ◽  
Chi Square Test ◽  
Using Data ◽  
Fine Print

Object. The aim of this study was to determine the prevalence of cerebral saccular aneurysms in patients with carotid artery and/or vertebral artery (VA) fibromuscular dysplasia (FMD). Methods. A metaanalysis was performed using data from 17 previously reported series of patients with internal carotid artery (ICA) and/or VA FMD that included information on the prevalence of cerebral aneurysms. In addition, the authors retrospectively evaluated their own series of 117 patients with ICA and/or VA FMD to determine the prevalence of cerebral aneurysms. The metaanalysis of the 17 earlier series, which included 498 patients, showed a 7.6 ± 2.5% prevalence of incidental, asymptomatic aneurysms in patients with ICA and/or VA FMD. In the authors' series of patients with FMD, 6.3 ± 4.9% of patients harbored an incidental, asymptomatic aneurysm. When the authors' series was combined with those included in the metaanalysis, the prevalence was found to be 7.3 ± 2.2%. The prevalence of aneurysms in the general population would have to be greater than 5.6% for there to be no statistically significant difference (chi-square test, p < 0.05) when compared with this 7.3% prevalence in patients with FMD. Conclusions. The prevalence of intracranial aneurysms in patients with cervical ICA and/or VA FMD is approximately 7%, which is not nearly as high as the 21 to 51% prevalence that has been previously reported.

Atypical fibromuscular hyperplasia

1981 ◽  
Vol 54 (5) ◽  
pp. 685-689 ◽  
Author(s):  
Fremont P. Wirth ◽  
William A. Miller ◽  
A. Preston Russell
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Common Carotid Artery ◽  
Internal Carotid ◽  
Content Type ◽  
First Report ◽  
Fourth Report ◽  
Fibromuscular Hyperplasia ◽  
The Common ◽  
Fine Print

✓ Two cases of atypical fibromuscular hyperplasia of the internal carotid artery (ICA) are reported. These cases are unique because the changes involve the intima of the vessels without involvement of medial structures as seen in the more common form of fibromuscular hyperplasia. Case 1 is only the fourth report of a symptomatic fibromuscular stenosis at the origin of the ICA. Case 2 is the first report of fibromuscular hyperplasia involving the common carotid artery. Changes similar to those in Case 2 (an elongated area of tubular fibromuscular stenosis) have been reported in the ICA. These atypical or intimal forms of fibromuscular hyperplasia appear to be more common in males and blacks, and may be more often unilateral as well.

Disappearance and development of cerebral aneurysms in moyamoya disease

1983 ◽  
Vol 58 (6) ◽  
pp. 949-953 ◽  
Author(s):  
Toru Satoh ◽  
Yuji Yamamoto ◽  
Syoji Asari ◽  
Masaru Sakurai ◽  
Kenji Suzuki
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Moyamoya Disease ◽  
Basilar Artery ◽  
Internal Carotid ◽  
Cerebral Aneurysms ◽  
Content Type ◽  
New Development ◽  
Spontaneous Disappearance ◽  
Fine Print

✓ The authors report a case of multiple cerebral aneurysms associated with moyamoya disease, in which the reduction and disappearance of bilateral internal carotid artery aneurysms and the new development and enlargement of basilar artery aneurysms were demonstrated on sequential cerebral angiograms. Possible mechanisms of the spontaneous disappearance and development of cerebral aneurysms in association with moyamoya disease are discussed.

The effect of cervical carotid ligation on giant intracranial aneurysms

1970 ◽  
Vol 33 (2) ◽  
pp. 184-190 ◽  
Author(s):  
John S. Tytus ◽  
Arthur A. Ward
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Carotid Artery ◽  
Intracranial Aneurysms ◽  
Internal Carotid ◽  
Endocrine Dysfunction ◽  
Content Type ◽  
Carotid Ligation ◽  
Visual Field Deficits ◽  
The Common ◽  
Fine Print

✓ Two patients with giant aneurysms of the internal carotid artery showed progressive visual field deficits, and one, endocrine dysfunction. Neither patient had ever had symptoms suggesting subarachnoid hemorrhage. Both patients benefitted from common carotid ligation. Comparable reports are reviewed, and the application of a previously reported technique for monitoring gradual occlusion of the common carotid artery is emphasized.

Intracarotid hydroxyethyl methacrylate solution causing stroke in dogs

1990 ◽  
Vol 73 (5) ◽  
pp. 756-759
Author(s):  
Phillip Purdy ◽  
Charles L. White ◽  
Hunt Batjer ◽  
Kirk Brewer ◽  
Kurt Hodges ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Interventional Neuroradiology ◽  
Hydroxyethyl Methacrylate ◽  
Content Type ◽  
Intravascular Thrombosis ◽  
Foreign Substance ◽  
Potential Risks ◽  
The Common ◽  
The Brain ◽  
Fine Print

✓ Hydroxyethyl methacrylate (HEMA) has been advocated as a polymerizing solution with which to prevent deflation of detachable balloons in interventional neuroradiology. It is pertinent to know if unpolymerized HEMA would have untoward effects if accidentally released into the carotid artery by balloon rupture or deflation. Seven mongrel dogs underwent transfemoral catheterization of the common carotid artery and subsequent injection of HEMA solution in volumes of 1 cc in five dogs, 2 cc in one, and 4 cc in one. Angiography performed at the time of injection revealed evidence of intravascular thrombosis as well as possible spasm. Three surviving animals were sacrificed at 48 hours; the brains were fixed and examined histopathologically. One brain was normal and one was autolyzed and could not be examined. Five of the seven animals had histopathologically documented cerebral infarctions of varying size. No foreign substance was seen within the blood vessels to suggest intravascular polymerization. The animals injected with 2 or 4 cc HEMA solution did not survive 48 hours. Literature review reveals little documentation of the toxicology of intravascular HEMA. With its increasing popularity as a compound for polymerization in detachable balloons introduced into the brain, further investigations are warranted to understand the physical properties of the compound and potential risks of its use.

Revascularization of the anterior cerebral artery

1985 ◽  
Vol 62 (4) ◽  
pp. 603-606 ◽  
Author(s):  
Akira Ikeda ◽  
Tomohisa Okada ◽  
Masato Shibuya ◽  
Satoshi Noda ◽  
Masakazu Sugiura ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid ◽  
Anterior Cerebral Artery ◽  
Cerebral Arteries ◽  
The Other ◽  
Anterior Communicating Artery ◽  
Technical Aspects ◽  
Content Type ◽  
Good Filling ◽  
Fine Print

✓ Intracranial anastomosis between the distal anterior cerebral arteries (ACA's) was performed on two patients. One patient had isolated occlusion of the proximal ACA on one side causing monoparesis in the leg, and the other patient suffered from occlusion of the internal carotid artery and a small anterior communicating artery. The weakness of the legs improved immediately after surgery and cerebral angiography revealed a good filling of the bilateral ACA's. Technical aspects and indications for the procedure are discussed.

Congenital anastomosis between the vertebral artery and internal carotid artery in the neck

1979 ◽  
Vol 51 (5) ◽  
pp. 697-699 ◽  
Author(s):  
Dwight Parkinson ◽  
Venkatesha Reddy ◽  
R. T. Ross
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Vertebral Artery ◽  
Rare Case ◽  
Internal Carotid ◽  
Artery Aneurysm ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysm ◽  
Fine Print

✓ A rare case of anastomosis between the vertebral artery and the internal carotid artery in the neck of a patient with an anterior communicating artery aneurysm is reported.

Enlarged anterior spinal artery as collateral circulation

1974 ◽  
Vol 41 (3) ◽  
pp. 356-359 ◽  
Author(s):  
Jun Karasawa ◽  
Haruhiko Kikuchi ◽  
Seiji Furuse ◽  
Toshisuke Sakaki ◽  
Yasumasa Makita
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Collateral Circulation ◽  
Internal Carotid ◽  
Vascular Malformations ◽  
Anterior Spinal Artery ◽  
Left Internal Carotid Artery ◽  
Content Type ◽  
Vertebral Arteries ◽  
Fine Print

✓The authors report and discuss two cases in which collateral circulation could be angiographically demonstrated passing through the anterior spinal artery. Case 1 proved to have occlusions of the left internal carotid artery and both vertebral arteries. The basilar artery was visualized via the anterior spinal, the primitive trigeminal, and primitive otic arteries. The presence of multiple vascular malformations and an abnormal anterior spinal artery suggested that the latter had been functioning as collateral circulation since an embryonic stage. In Case 2, both internal carotids and both vertebral arteries were occluded by arteriosclerotic changes. It was assumed that the deleted anterior spinal artery visualized angiographically had developed into a collateral circulation with increasing age.

Patient presentation, angiographic features, and treatment of strangulation-induced dissection of the internal carotid artery

2000 ◽  
Vol 92 (3) ◽  
pp. 481-487 ◽  
Author(s):  
Adel M. Malek ◽  
Randall T. Higashida ◽  
Van V. Halbach ◽  
Christopher F. Dowd ◽  
Constantine C. Phatouros ◽  
...  
Keyword(s):  
Domestic Violence ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Stent Placement ◽  
Internal Carotid ◽  
Artery Dissection ◽  
Percutaneous Angioplasty ◽  
Consistent Finding ◽  
Content Type ◽  
Fine Print

✓ Domestic violence leading to strangulation by an abusive spouse can cause carotid artery dissection. This phenomenon is rare and has been described in only three previous instances. The authors present their management strategies in three additional cases.Three young women aged 24 to 43 years were victims of manual strangulation committed by their spouses 3 months to 1 year before presentation. Two of the patients suffered delayed cerebral infarctions before presentation and angiography demonstrated focal, mirror-image severe residual stenoses in the high-cervical internal carotid artery (ICA), which were characteristic of a healed chronic dissection; there was no evidence of fibromuscular dysplasia. One of these patients underwent unilateral percutaneous angioplasty with stent placement, and the other underwent bilateral percutaneous angioplasty. Both patients have recovered from their strokes and remain clinically stable at 8 and 20 months posttreatment, respectively. The third patient presented with bilateral ischemic frontal watershed infarctions resulting from an occluded left ICA and a severely narrowed right ICA. Given the extent of the established infarctions, this case was managed with a long-term regimen of anticoagulation medications, and the patient remains neurologically impaired.These cases illustrate the susceptibility of the manually compressed ICA to traumatic injury as a result of domestic violence. They identify bilateral symmetrical ICA dissection as a consistent finding and the real danger of delayed stroke as a consequence of strangulation. Endovascular therapy in which percutaneous angioplasty and/or stent placement are used can be useful in treating residual focal stenoses to improve cerebral perfusion and to lower the risk of embolic or ischemic stroke.

Carotid paraclinoid aneurysms with intradural origin and intracavernous location

1978 ◽  
Vol 48 (4) ◽  
pp. 526-533 ◽  
Author(s):  
Stephen Nutik
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Precise Definition ◽  
Separate Entity ◽  
Content Type ◽  
Paraclinoid Aneurysms ◽  
Planning Treatment ◽  
Definition Of ◽  
Fine Print

✓ Five cases of a congenital berry aneurysm of the internal carotid artery with origin partially intradural and fundus mainly intracavernous are presented. Angiography does not allow a precise definition of the amount of aneurysm that is intradural, a fact of importance when planning treatment of these cases. However, the angiographic features are characteristic of the type and suggest that these aneurysms be grouped together as a separate entity.

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