scholarly journals Histomorphometrical study of the elastic fiber system in the anterior cerebral artery of man

2000 ◽  
Vol 58 (4) ◽  
pp. 1040-1046 ◽  
Author(s):  
RENATO PAULO CHOPARD ◽  
RENÊ GERHARD
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Elastic Fiber ◽  
Artery Aneurysm ◽  
Elastic Fibers ◽  
Anterior Communicating Artery ◽  
Fiber System ◽  
Regression Methods ◽  
Segment Data ◽  
Cerebral Artery Aneurysm

The aim of the present study was to quantify the distribution of the elastic fiber system within the wall of the anterior cerebral artery. The study is based on the works of Glynn (1940) and Stehbens (1989) concerning the incidence and origin of brain aneurysms and recent studies of the elastic fibers. The anterior cerebral artery was divided into three segments, S1, S2 and S3: S1 corresponds to the origin of the anterior cerebral artery, S2 is located at the junction of the anterior cerebral artery with the anterior communicating artery, and S3 at the junction of the rostrum and genu of the corpus callosum,which were submitted to routine histological procedures. A histomorphometrical study was undertaken using an estimation of the linear density (Ld) of the components of the fibrous elastic system which evaluates their full length in each segment. Data were analyzed using first order linear regression methods. The results show a decreasing quantity of elastic fibers in the three segments (S1>S2>S3). Study of the elastic fiber system may originate new concepts regarding the genesis of cerebral artery aneurysm.

scholarly journals Complete Recovery from Blindness in Case of Compressive Optic Neuropathy due to Unruptured Anterior Cerebral Artery Aneurysm

2017 ◽  
Vol 8 (1) ◽  
pp. 157-162
Author(s):  
Yurie Fukiyama ◽  
Hidehiro Oku ◽  
Yusuke Hashimoto ◽  
Yuko Nishikawa ◽  
Masahiro Tonari ◽  
...  
Keyword(s):  
Visual Field ◽  
Optic Neuropathy ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Artery Aneurysm ◽  
Complete Recovery ◽  
Visual Field Defects ◽  
Anterior Cerebral Artery Aneurysm ◽  
The Right ◽  
Cerebral Artery Aneurysm

It is not common for an isolated visual symptom to be the first indication of an aneurysm compressing the optic nerve. The compression can lead to blindness, and a recovery from the blindness is rare. We report a female with a left painless optic neuropathy caused by an unruptured anterior cerebral artery aneurysm. The patient had a temporal hemianopic visual field defect, which progressed to blindness in the left eye, while the right visual function was not affected. A coil embolization of the aneurysm completely restored her visual acuity to 20/20. These findings suggest that aneurysmal lesions should be ruled out in case of unilateral optic neuropathy with hemianopic visual field defects and progressive visual loss.

Analysis of Anterior Cerebral Artery Tortuosity: Association with Anterior Communicating Artery Aneurysm Rupture

2019 ◽  
Vol 122 ◽  
pp. e480-e486 ◽  
Author(s):  
Roger M. Krzyżewski ◽  
Kornelia M. Kliś ◽  
Borys M. Kwinta ◽  
Małgorzata Gackowska ◽  
Krzysztof Stachura ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Artery Aneurysm ◽  
Aneurysm Rupture ◽  
Anterior Communicating Artery ◽  
Anterior Communicating Artery Aneurysm

scholarly journals Acute subdural hematoma associated with distal anterior cerebral artery aneurysm: Report of two cases

Nosotchu ◽  
2005 ◽  
Vol 27 (2) ◽  
pp. 322-326 ◽  
Author(s):  
Kyozo Kato ◽  
Suguru Inao ◽  
Takeshi Okamoto ◽  
Shigemasa Hayashi ◽  
Takehiro Naito ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Subdural Hematoma ◽  
Anterior Cerebral Artery ◽  
Artery Aneurysm ◽  
Acute Subdural Hematoma ◽  
Anterior Cerebral Artery Aneurysm ◽  
Distal Anterior Cerebral Artery ◽  
Cerebral Artery Aneurysm

Bilateral Internal Carotid to Anterior Cerebral Artery Anastomosis with Anterior Communicating Artery Aneurysm: Technical Case Report

2005 ◽  
Vol 57 (suppl_4) ◽  
pp. ONS-E400-ONS-E400 ◽  
Author(s):  
Kaya Kılıç ◽  
Metin Orakdöğen ◽  
Aram Bakırcı ◽  
Zafer Berkman
Keyword(s):  
Case Report ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Cerebral Artery ◽  
Internal Carotid ◽  
Anterior Cerebral Artery ◽  
Artery Aneurysm ◽  
Anterior Communicating Artery

Abstract OBJECTIVE AND IMPORTANCE: The present case report is the first one to report a bilateral anastomotic artery between the internal carotid artery and the anterior communicating artery in the presence of a bilateral A1 segment, fenestrated anterior communicating artery (AComA), and associated aneurysm of the AComA, which was discovered by magnetic resonance angiography and treated surgically. CLINICAL PRESENTATION: A 38-year-old man who was previously in good health experienced a sudden onset of nuchal headache, vomiting, and confusion. Computed tomography revealed a subarachnoid hemorrhage. Magnetic resonance angiography and four-vessel angiography documented an aneurysm of the AComA and two anastomotic vessels of common origin with the ophthalmic artery, between the internal carotid artery and AComA. INTERVENTION: A fenestrated clip, introduced by a left pterional craniotomy, leaving in its loop the left A1 segment, sparing the perforating and hypothalamic arteries, excluded the aneurysm. CONCLUSION: The postoperative course was uneventful, with complete recovery. Follow-up angiograms documented the successful exclusion of the aneurysm. Defining this particular internal carotid-anterior cerebral artery anastomosis as an infraoptic anterior cerebral artery is not appropriate because there is already an A1 segment in its habitual localization. Therefore, it is also thought that, embryologically, this anomaly is not a misplaced A1 segment but the persistence of an embryological vessel such as the variation of the primitive prechiasmatic arterial anastomosis. The favorable outcome for our patient suggests that surgical treatment may be appropriate for many patients with this anomaly because it provides a complete and definitive occlusion of the aneurysm.

scholarly journals Pediatric Moyamoya Presenting as a Subarachnoid Hemorrhage from a Ruptured Anterior Cerebral Artery Aneurysm

2020 ◽  
Vol 134 ◽  
pp. 123-127 ◽  
Author(s):  
Mohammad Hassan A. Noureldine ◽  
Ibrahim Saikali ◽  
Anis Nassif ◽  
Rita Chahinian ◽  
Ahmad Sweid ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Artery Aneurysm ◽  
Anterior Cerebral Artery Aneurysm ◽  
Cerebral Artery Aneurysm
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