Aneurysms arising from the proximal (A1) segment of the anterior cerebral artery

1992 ◽  
Vol 76 (3) ◽  
pp. 455-458 ◽  
Author(s):  
Michiyasu Suzuki ◽  
Takehide Onuma ◽  
Yoshiharu Sakurai ◽  
Kazuo Mizoi ◽  
Akira Ogawa ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Radical Surgery ◽  
Septum Pellucidum ◽  
Anterior Communicating Artery ◽  
Fusiform Aneurysm ◽  
Content Type ◽  
Perforating Artery ◽  
Anterior Communicating Artery Aneurysms ◽  
High Incidence

✓ This study reviews aneurysms of the proximal segment (A1) of the anterior cerebral artery in 38 patients (23 men and 15 women) and their surgical, angiographic, and clinical management. Thirty-seven aneurysms were saccular and one was fusiform. The incidence of A1 aneurysms among a total of 4295 aneurysm cases treated was 0.88%. Multiple aneurysms occurred in 17 patients (44.7%) of the 38 cases; in 10 (58.8%), there was bleeding from the A1 aneurysm. The aneurysms were classified into five categories according to the mode of origin of the aneurysm in relation to the A1 segment: in 21 cases, aneurysms originated from the junction of the A1 segment and a perforating artery; in eight, from the A1 segment directly; in six, from the proximal end of the A1 fenestration; and in two, from the junction of the A1 segment and the cortical branch. One patient had a fusiform aneurysm. Computerized tomography (CT) of these aneurysms revealed bleeding extending to the septum pellucidum similar to that of anterior communicating artery aneurysms. When performing radical surgery it is very important to recognize the characteristics of A1 aneurysms, including multiplicity, a high incidence of vascular anomalies (especially A1 fenestration), and their similarity to anterior communicating artery aneurysms on CT.

Occlusion of an “accessory” distal anterior cerebral artery during treatment of anterior communicating artery aneurysms

1991 ◽  
Vol 74 (1) ◽  
pp. 133-135 ◽  
Author(s):  
Kevin Gibbons ◽  
Leo N. Hopkins ◽  
Roberto C. Heros
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Communicating Artery ◽  
Case Histories ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Artery Segment ◽  
Distal Anterior Cerebral Artery ◽  
Clip Occlusion ◽  
Fine Print

✓ Two cases are presented in which clip occlusion of a third distal anterior cerebral artery segment occurred during treatment of anterior communicating artery aneurysms. Case histories, angiograms, operative descriptions, and postmortem findings are presented. The incidence of this anomalous vessel is reviewed. Preoperative and intraoperative vigilance in determining the presence of this anomaly prior to clip placement is emphasized.

The effect of proximal anterior cerebral occlusion on anterior communicating artery aneurysms

1971 ◽  
Vol 35 (1) ◽  
pp. 16-19 ◽  
Author(s):  
Felix Durity ◽  
Valentine Logue
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Fine Print

✓ The arteriographic changes occurring in the anterior communicating aneurysmal sacs in 43 cases treated by ligation of the anterior cerebral artery have been presented and discussed.

Association of Anterior Communicating Artery Aneurysms with Triplicate A2 Segment of the Anterior Cerebral Artery

2020 ◽  
Vol 140 ◽  
pp. e234-e239
Author(s):  
Ali Jalali ◽  
Visish M. Srinivasan ◽  
Peter Kan ◽  
Edward A.M. Duckworth
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Communicating Artery ◽  
Anterior Communicating Artery Aneurysms

Fusiform Aneurysm of the Anterior Communicating Artery Treated by Vascular Reconstruction

Neurosurgery ◽  
2010 ◽  
Vol 66 (5) ◽  
pp. E1025-E1026 ◽  
Author(s):  
Toshikazu Kimura ◽  
Kengo Nishimura ◽  
Syunsuke Fukaya ◽  
Akio Morita
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Vascular Reconstruction ◽  
Cerebral Revascularization ◽  
Anterior Communicating Artery ◽  
Fusiform Aneurysm ◽  
Digital Subtraction ◽  
Case Presentation ◽  
Ischemic Complications

Abstract OBJECTIVE Fusiform aneurysm of the anterior cerebral artery is rare and difficult to treat because of perforators. We encountered a patient with subarachnoid hemorrhage due to rupture of a fusiform aneurysm of the anterior communicating artery complex, and treated this patient with cerebral revascularization. CASE PRESENTATION A 39-year-old man presented with sudden severe headache resulting from subarachnoid hemorrhage. Digital subtraction angiography showed dilatation from the distal A1 segment to the proximal A2 segment of the left anterior cerebral artery. Despite intensive conservative treatment, repetitive angiography showed aneurysmal growth from this dilated portion. INTERVENTION Proximal clipping and clip-on wrapping on the A2 segment was successfully performed with a A3-A3 bypass. He was discharged without neurological deficit. CONCLUSION Cerebral revascularization technique is necessary to achieved appropriate obliteration without ischemic complications.

Microsurgical anatomy of the distal anterior cerebral artery

1978 ◽  
Vol 49 (2) ◽  
pp. 204-228 ◽  
Author(s):  
David Perlmutter ◽  
Albert L. Rhoton
Keyword(s):  
Corpus Callosum ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Internal Capsule ◽  
Optic Chiasm ◽  
Anterior Communicating Artery ◽  
Microsurgical Anatomy ◽  
Content Type ◽  
Cm Points ◽  
Distal Anterior Cerebral Artery

✓ The microsurgical anatomy of the distal anterior cerebral artery (ACA) has been defined in 50 cerebral hemispheres. The distal ACA, the portion beginning at the anterior communicating artery (ACoA), was divided into four segments (A2 through A5) according to Fischer. The distal ACA gave origin to central and cerebral branches. The central branches passed to the optic chiasm, suprachiasmatic area, and anterior forebrain below the corpus callosum. The cerebral branches were divided into cortical, subcortical, and callosal branches. The most frequent site of origin of the cortical branches was as follows: orbitofrontal and frontopolar arteries, A2; the anterior and middle internal frontal and callosomarginal arteries, A3; the paracentral artery, A4; and the superior and inferior parietal arteries, A5. The posterior internal frontal artery arose with approximately equal frequency from A3 and A4 and the callosomarginal artery. All the cortical branches arose more frequently from the pericallosal than the callosomarginal artery. Of the major cortical branches, the internal frontal and paracentral arteries arose most frequently from the callosomarginal artery. The distal ACA of one hemisphere sent branches to the contralateral hemisphere in 64% of brains. The anterior portions of the hemisphere between the 5-cm and 15-cm points on the circumferential line showed the most promise of revealing a recipient artery of sufficient size for an extracranial-intracranial artery anastomosis. The distal ACA was the principal artery supplying the corpus callosum. The recurrent artery, which arose from the A2 segment in 78% of hemispheres, sent branches into the subcortical area around the anterior limb of the internal capsule.

Carotid-anterior cerebral artery anastomosis

1976 ◽  
Vol 44 (3) ◽  
pp. 378-382 ◽  
Author(s):  
Stephen Nutik ◽  
Domenico Dilenge
Keyword(s):  
Optic Nerve ◽  
Cerebral Artery ◽  
Ophthalmic Artery ◽  
Internal Carotid ◽  
Anterior Cerebral Artery ◽  
Optic Chiasm ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Anatomical Features ◽  
Fine Print

✓ The angiographic and anatomical features of an anomalous communication between the intradural internal carotid artery and the anterior cerebral artery are described. Essential features of the anastomosis include an origin at, or close to, the origin of the ophthalmic artery, a course ventral to the ipsilateral optic nerve and anterior to the optic chiasm, and a termination near the anterior communicating artery. Although rare, the condition should be considered as an entity. The incidence of associated berry aneurysm and other congenital vascular anomalies is high.

End-to-end anastomosis of the anterior cerebral artery after excision of a giant aneurysm

1982 ◽  
Vol 56 (4) ◽  
pp. 577-580 ◽  
Author(s):  
Robert R. Smith ◽  
Andrew D. Parent
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Giant Aneurysm ◽  
Fusiform Aneurysm ◽  
Content Type ◽  
Intracranial Arteries ◽  
End To End ◽  
Fine Print

✓ A case of a giant anterior cerebral artery fusiform aneurysm is presented. The lesion was treated by primary excision of the involved segment with an end-to-end anastomosis of the proximal-distal segments of the anterior cerebral artery. It is believed that this technique has not been reported previously for lesions involving major intracranial arteries.

Ligation of an anterior cerebral artery for aneurysms of the anterior communicating artery complex

1973 ◽  
Vol 38 (4) ◽  
pp. 481-487 ◽  
Author(s):  
Michael Scott
Keyword(s):  
Clinical Data ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Long Term Follow Up ◽  
Fine Print

✓ The clinical data on nine patients with aneurysms of the anterior communicating artery complex treated by ligation of an anterior cerebral artery are presented. The long-term follow-up angiograms on five of the eight patients who survived surgery are discussed.

Sign in / Sign up

Export Citation Format

Share Document