Microanatomy of the pericallosal arterial complex

Kakou, M.; Destrieux, Christophe; Velut, Stéphane

doi:10.3171/jns.2000.93.4.0667

Cited by 71 publications

(49 citation statements)

References 7 publications

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“…Two symmetrical callosomarginal arteries can also be present in the same hemisphere (78). A typical CmA has a longer course compared to the two symmetrical atypical callosomarginal arteries and usually originates from the A3 segment (28,62,78). Ugur et al (78) observed typical, atypical or absent CmA's in 49%, 34% and 17% respectively.…”

Section: Callosomarginal Arterymentioning

confidence: 99%

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Review of the anatomy of the distal anterior cerebral artery and its anomalies

Cilliers

Page²

2015

Turkish Neurosurgery

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SegmentationVarious authors have used different terms to describe the segments of the ACA (36,64,68). It can be divided into proximal and distal segments, or pre-and postcommunicating segments. The pericallosal artery is distal to the A1 segment and consists of several segments that can be divided according to its relationship with the corpus callosum. The A2 segment (also referred to as the infracallosal section) runs vertically █ INTRODUCTION T he cerebral cortex is primarily supplied by the anterior, middle and posterior cerebral arteries. The anatomy of the anterior cerebral artery (ACA) varies considerably and this complicates the description of the ACA and its branches. The segmentation of the ACA is mostly described similarly by different authors, although the relationship of the pericallosal (PrcA) and callosomarginal arteries (CmA) is not agreed upon (78).The anterior cerebral artery (ACA) varies considerably and this complicates the description of the normal anatomy. The segmentation of the ACA is mostly agreed on by different authors, although the relationship of the pericallosal and callosomarginal arteries (CmA) is not agreed upon. The two basic configurations of the ACA are determined by the presence or absence of the CmA.The diameter, length and origin of the cortical branches have been measured and described by various authors and display great variability. Common anomalies of the ACA include the azygos, bihemispheric, and median anterior cerebral arteries.A pilot study was done on 19 hemispheres to assess the variation of the branches of the ACA. The most common variations included absence and duplication. The inferior internal parietal artery and the CmA were most commonly absent and the paracentral lobule artery was the most frequently duplicated (36.8%). The inferior internal parietal artery originated from the posterior cerebral artery in 40.0% and this was the most unusual origin observed.It is important to be aware of the possibility of variations since these variations can have serious clinical implications. The knowledge of these variations can be helpful to clinicians and neurosurgeons. The aim of this article is to review the anatomy and variations of the anterior cerebral artery, as described in the literature. This was also compared to the results from a pilot study.

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Section: Callosomarginal Arterymentioning

confidence: 99%

“…Since the origin of the callosomarginal artery can vary, this terminology can be problematic (36). The CmA is also not always present and therefore it is preferable to classify the pericallosal artery as the segment distal to the AcoA (28,62). The callosomarginal artery has been observed in 40.0% to 93.4% of specimens (6,17,28,34,44,54,62,64,65,68,69,78).…”

mentioning

confidence: 99%

Review of the anatomy of the distal anterior cerebral artery and its anomalies

Cilliers

Page²

2015

Turkish Neurosurgery

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“…La arteria cerebral anterior (ACA) es la rama terminal anterior de la arteria carótida interna 23,35,40,42,50 . Desde su origen en el sector más interno de la cisura de Silvio, se dirige hacia delante y adentro cruzando por arriba al quiasma (70%) o el nervio óptico homolateral (30%) 35 .…”

Section: Anatomía Quirúrgica De La Acad (Figura 5)unclassified

Aneurismas del sector distal de la arteria cerebral anterior (arteria pericallosa)

Martínez

Spagnuolo²,

Calvo³

2005

Neurocirugía

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ResumenSe analizan las características clínicas, angiográficas y quirúrgicas de 13 pacientes portadores de aneurismas de la arteria pericallosa, operados por un mismo grupo de cirujanos, dentro de un total de 18 casos.Hubo una mortalidad del 5.5% (tomando en cuenta los 18 pacientes operados), con resultados buenos (GOS II) o excelentes (GOS I) en el 91.7%.Según la experiencia de los autores y de otros de referencia, los aneurismas de la arteria pericallosa no deberían considerarse de peor pronóstico que aquellas otras topografías dentro del sector anterior del polígono de Willis.PALABRAS CLAVE: Hemorragia subaracnoidea. Aneurismas de arteria pericallosa. Aneurysms of the distal anterior cerebral artery SummaryThe clinical, angiographic and surgical features of 13 (out of 18) patients harboring pericallosal aneurysms and operated on by the same group of neurosurgeons, are analyzed.The mortality rate of the whole series was 5.5% with good (GOS II) or excellent (GOS I) recovery in the 91.7% of cases.According to the experience of the authors pericallosal aneurysms should not be considered to have a worse prognosis than aneurysms in other locations of the anterior circulation.

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“…The A4 segment runs superior to the corpus callosum, extending to a point just behind the coronal suture. The A5 segment is the portion of the AComA that lies posterior to the coronal suture (10).…”

Section: Anatomymentioning

confidence: 99%

“…They are uncommon, comprising only 2.7 to 9.2% (mean, 4.4% in 13 large series) of all intracranial aneurysms. (14,23,10) Their location in the interhemispheric fissure, the association with intracerebral hemorrhage, with multiple aneurysms and with vascular anomalies of the anterior cerebral artery (ACA) offer the neurosurgeon a complex pathology and challenging surgical technique. The complexity of this pathology is completed by the specific anatomic features of DACA aneurysms, such as their small size and the broad neck with originating branches at this level (14,23).…”

mentioning

confidence: 99%

Single center experience and technical nuances in the treatment of distal anterior cerebral artery aneurysms

Gherasim¹,

Gyorki²,

Bălaşa³

2017

Romanian Neurosurgery

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Objective: This study presents the experience of one neurosurgical center in the treatment of 18 consecutive patients with distal anterior cerebral artery (DACA) aneurysms during a 10 years period. Our aim was to compare treatment outcomes of these lesions with intracranial aneurysms in general, and to present technical nuances in surgical treatment. Methods: We analyzed the clinical and radiological data of 18 patients treated between 2005 and 2015. All patients were treated surgically using the microscope. No patients were lost to follow-up. We compared treatment and outcome of ruptured DACA aneurysms (n 18) with all consecutive ruptured aneurysms treated in our clinic during the same period (n 446). Results: DACA aneurysms accounted for 4% of all intracranial aneurysms. They were smaller (median, 5,5 versus 9 mm) We found only one case with associated aneurysms (5,5%). DACA aneurysms presented more often with intracerebral hematomas (39% versus 26%) than ruptured aneurysms in general. Their microsurgical treatment showed the same complication rates (treatment morbidity, 15%) as for other ruptured aneurysms in literature. Their mortality rate was lower (11% versus 24%). Conclusion: Despite their specific anatomic features, and particular surgical technique, with modern treatment methods, ruptured DACA aneurysms have the same favorable outcome and lower mortality as ruptured aneurysms in general.

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Microanatomy of the pericallosal arterial complex

Cited by 71 publications

References 7 publications

Review of the anatomy of the distal anterior cerebral artery and its anomalies

Review of the anatomy of the distal anterior cerebral artery and its anomalies

Aneurismas del sector distal de la arteria cerebral anterior (arteria pericallosa)

Single center experience and technical nuances in the treatment of distal anterior cerebral artery aneurysms

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