Anterior communicating artery aneurysms with associated anomalies

1980 ◽  
Vol 52 (2) ◽  
pp. 162-164 ◽  
Author(s):  
Ryungchan Kwak ◽  
Hiroshi Niizuma ◽  
Mitsuaki Hatanaka ◽  
Jiro Suzuki
Keyword(s):  
Corpus Callosum ◽  
Cerebral Aneurysm ◽  
Occurrence Rate ◽  
Anterior Communicating Artery ◽  
Associated Anomalies ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Median Artery ◽  
Arterial Anomalies ◽  
Fine Print

✓ In 296 cases with a single aneurysm of the anterior communicating artery (ACoA), fenestration or the presence of more than two ACoA's was observed in 17 cases (5.7%), and abnormal vessels of ACoA origin, such as a median artery of the corpus callosum, were observed in 13 cases (4.4%). As more than one anomaly was found in some of these cases, anomalies of the ACoA were found in a total of 26 cases (8.8%). This occurrence rate was no higher than that observed in other cerebral aneurysm cases and in the control cases, which were reported previously. There was no significant increase of hypoplasia of the A1 portion if the ACoA aneurysm was complicated by other arterial anomalies.

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.

Stereotaxic occlusion of 22 consecutive anterior communicating artery aneurysms

1980 ◽  
Vol 52 (6) ◽  
pp. 790-793 ◽  
Author(s):  
John F. Alksne ◽  
Randall W. Smith
Keyword(s):  
Anterior Communicating Artery ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Fine Print

✓ The authors review 22 consecutive cases of anterior communicating artery aneurysms treated by stereotaxic iron-acrylic occlusion. There was no mortality and no rebleeding in this series. The morbidity was low, and 16 of the 22 patients have returned to work. The patients whose aneurysms could be treated transsphenoidally enjoyed the best outcome.

Basilar-middle meningeal artery anastomoses associated with a cerebral aneurysm

1981 ◽  
Vol 54 (5) ◽  
pp. 677-680 ◽  
Author(s):  
Marcia Katz ◽  
Hugh S. Wisoff ◽  
Robert D. Zimmerman
Keyword(s):  
Cerebral Aneurysm ◽  
Basilar Artery ◽  
Middle Meningeal Artery ◽  
Ruptured Aneurysm ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Autopsy Findings ◽  
Meningeal Artery ◽  
Fine Print

✓ Unique radiographic and autopsy findings are described in a patient with bilateral basilar artery-middle meningeal artery (BA-MMA) anastomoses associated with a ruptured aneurysm of the anterior communicating artery. The literature, anatomy, and embryology of BA-MMA anastomosis is reviewed.

Preservation of the olfactory tract in bifrontal craniotomy for anterior communicating artery aneurysms, and the functional prognosis

1981 ◽  
Vol 54 (3) ◽  
pp. 342-345 ◽  
Author(s):  
Jiro Suzuki ◽  
Takashi Yoshimoto ◽  
Kazuo Mizoi
Keyword(s):  
Surgical Treatment ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Olfactory Tract ◽  
Anterior Communicating Artery Aneurysms ◽  
Tract Damage ◽  
Fine Print

✓ Results of surgical treatment of anterior communicating artery aneurysms, approached via bifrontal craniotomy, are reported in 110 cases. It was possible to preserve the olfactory tracts bilaterally or unilaterally in over 65% of these cases: 47% with bilateral preservation and 34% with unilateral preservation; 33% of the patients with bilateral olfactory tract damage reported subjectively normal olfaction. Objective examination of olfaction by an otolaryngologist showed that 84% of the patients reporting normal olfaction did indeed have normal olfaction, whereas 91% of these reporting no olfaction were anosmic.

Clip-grafts for aneurysm and small vessel surgery.

1972 ◽  
Vol 37 (6) ◽  
pp. 753-758 ◽  
Author(s):  
Thoralf M. Sundt
Keyword(s):  
Middle Cerebral Artery ◽  
Intracranial Aneurysms ◽  
Internal Carotid ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Septal Region ◽  
Vertebrobasilar System ◽  
Anterior Communicating Artery Aneurysms ◽  
The Right ◽  
Fine Print

✓ Analysis of the use of the clip-graft for intracranial aneurysms indicates that the clip-graft is chiefly applicable to internal carotid and anterior communicating artery aneurysms. The development of the right-angle clip holder has extended its use to anterior communicating artery aneurysms that project posteriorly or superiorly. The dangers of dissection in the septal region are discussed. With few exceptions, the clip-graft is not applicable to the vertebrobasilar system or middle cerebral artery trifurcation aneurysms, although it has been used for aneurysms arising from the trunk of the latter vessel.

Microanatomy of the pericallosal arterial complex

2000 ◽  
Vol 93 (4) ◽  
pp. 667-675 ◽  
Author(s):  
Médard Kakou ◽  
Christophe Destrieux ◽  
Stéphane Velut
Keyword(s):  
Corpus Callosum ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Communicating Artery ◽  
Human Cadaver ◽  
Embryological Development ◽  
Content Type ◽  
Pericallosal Artery ◽  
Fine Print

Object. The pericallosal arterial complex supplies the callosal and pericallosal regions, as well as the anterior two thirds of the medial and superomedial aspects of both hemispheres. It is composed of the pericallosal artery (that is, the segment of the anterior cerebral artery located distal to the anterior communicating artery [ACoA]) and the median callosal artery (or third pericallosal artery), which originates from the ACoA. This system was studied in 46 specimens (23 human cadaver heads) injected with colored latex.Methods. After being injected with colored latex, embalmed, and bleached, the specimens were studied with the aid of optic magnification.The pericallosal artery was found to be divided into four segments (A2–A5 in the proximodistal direction). After giving rise to central, callosal, and cortical branches, it terminated near the splenium of the corpus callosum as the posterior pericallosal artery, or on the precuneus as the inferomedial parietal artery.Conclusions. The authors propose a logical classification of the different variations in the pericallosal arterial complex based on embryological development. This complex can be considered a hemodynamic solution to an abnormal regression of one of its parts, which is balanced by the development of supplemental channels from other parts.

Bifrontal craniotomy for anterior communicating artery aneurysms

1972 ◽  
Vol 36 (2) ◽  
pp. 212-220 ◽  
Author(s):  
J. Lawrence Pool
Keyword(s):  
Ruptured Aneurysm ◽  
Anterior Communicating Artery ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Fine Print

✓ The results in 60 cases of ruptured aneurysm of the anterior communicating artery are analyzed.

A temporal approach to anterior communicating artery aneurysms

1989 ◽  
Vol 71 (1) ◽  
pp. 144-146 ◽  
Author(s):  
Charles E. Poletti
Keyword(s):  
Brain Tissue ◽  
Anterior Communicating Artery ◽  
Temporal Fossa ◽  
Content Type ◽  
Anterior Communicating Artery Aneurysms ◽  
Brain Retraction ◽  
Gyrus Rectus ◽  
Fine Print

✓ As an alternative to approaching anterior communicating artery (ACoA) aneurysms through the frontal fossa, either parasagittally or laterally (pterional, gyrus rectus approach), this report describes an approach to ACoA aneurysms through the temporal fossa. The main advantages of this temporal technique are that it requires less brain retraction, gives better surgical orientation, gains control of both A1 segments before disturbing the aneurysm, and involves minimal resection of brain tissue. This temporal approach has recently been used by the author in 20 consecutive operations for ACoA aneurysms in preference to the gyrus rectus approach.

Dandy-Walker syndrome

1981 ◽  
Vol 55 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Raymond Sawaya ◽  
Robert L. McLaurin
Keyword(s):  
Corpus Callosum ◽  
Posterior Fossa ◽  
Intellectual Development ◽  
Psychometric Testing ◽  
Clinical Analysis ◽  
Mental Development ◽  
Associated Anomalies ◽  
Content Type ◽  
Walker Malformation ◽  
Fine Print

✓ A clinical analysis of 23 patients with Dandy-Walker malformation indicates that more than 85% of them were diagnosed at or before 1 year of age, and that the incidence of associated anomalies is approximately 50%, with a 17% incidence for agenesis of the corpus callosum. The significance of the presence of these anomalies is substantiated by the fact that of the seven deaths recorded, six were related to this disease and five were affected by associated anomalies. The high mortality rate (26%) is comparable to that of other series. The differential diagnosis with posterior fossa extra-axial cysts is discussed. Ten patients were primarily treated with excision of the cyst membrane; all of them required subsequent shunting to control the intracranial pressure, demonstrating the futility of this approach. None of the patients treated with lateral ventricle shunting suffered an upward herniation of the posterior fossa contents, suggesting that combined shunting of the lateral and fourth ventricles is rarely necessary. The technical advantages of posterior fossa shunting alone are outlined. Of the 16 survivors, 14 were assessed for their mental development by means of standard psychometric testing. The results of the intelligence quotient (IQ) scoring have indicated that 71% of the patients have subnormal mental development (IQ < 83). There was no significant relationship between retardation and associated anomalies, although agenesis of the corpus callosum was related to poor intellectual development in the two patients so affected (IQ's of 50 and 73).

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.

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