scholarly journals Gross anatomical study of recurrent artery of Huebner

2015 ◽  
Vol 04 (01) ◽  
pp. 005-011
Author(s):  
Sunitha Narayanan
Keyword(s):  
Cerebral Artery ◽  
Neurological Deficit ◽  
Anterior Cerebral Artery ◽  
Cerebral Aneurysms ◽  
Anatomical Study ◽  
Anatomical Variations ◽  
Anterior Communicating Artery ◽  
Lateral Part ◽  
Anterior Portion ◽  
Surgical Interventions

Abstract Background: Cerebral aneurysms frequently occur in the arterial complex composed of Anterior Cerebral Artery, Anterior Communicating Artery and Recurrent Artery of Huebner. Due to the anatomical variations in the origin and course of the Recurrent Artery of Huebner, surgical interventions in the anterior portion of circle of Willis can be complicated by obstruction or vascular damage to Recurrent Artery of Huebner, caused by improper clip placement. Objectives: To study the variations in the origin, number, course & termination of Recurrent artery of Huebner. Also the distance of origin of the Recurrent artery from the junction of Pre and Postcommunicating segment of Anterior Cerebral Artery was noted. Materials and methods: The study was conducted in 60 randomly selected brain specimens fixed in 10% formalin for 10 days in the Department of Anatomy. The Recurrent Artery was then carefully dissected and observations were made. Photographs were taken to document the observations. Results: The Recurrent artery of Huebner arose most frequently from the junction of Pre and Postcommunicating segment of Anterior Cerebral Artery (59.2%) and next frequently from the Postcommunicating segment of Anterior Cerebral Artery within 1mm from the junction of Pre and Postcommunicating segment of Anterior Cerebral Artery. It coursed more commonly anterior to the Precommunicating segment of Anterior Cerebral Artery in 80% cases. The artery terminated in the lateral part of anterior perforated substance in 96.7% of the specimens. Conclusions: The Recurrent artery should be routinely identified during clipping of the aneurysm of the Anterior Communicating Artery to prevent postoperative neurological deficit.

scholarly journals Anatomical variations of circle of Willis - a cadaveric study

2017 ◽  
Vol 4 (4) ◽  
pp. 1249 ◽  
Author(s):  
Ramanuj Singh ◽  
Ajay Babu Kannabathula ◽  
Himadri Sunam ◽  
Debajani Deka
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anterior Part ◽  
Cerebral Arteries ◽  
Anatomical Variations ◽  
Circle Of Willis ◽  
Anterior Communicating Artery ◽  
Surgical Interventions ◽  
Collateral Channel ◽  
The Right

Background: The circle of Willis (CW) is a vascular network formed at the base of skull in the interpeduncular fossa. Its anterior part is formed by the anterior cerebral artery, from either side. Anterior communicating artery connects the right and left anterior cerebral arteries. Posteriorly, the basilar artery divides into right and left posterior cerebral arteries and each join to ipsilateral internal carotid artery through a posterior communicating artery. Anterior communicating artery and posterior communicating arteries are important component of circle of Willis, acts as collateral channel to stabilize blood flow. In the present study, anatomical variations in the circle of Willis were noted.Methods: 75 apparently normal formalin fixed brain specimens were collected from human cadavers. 55 Normal anatomical pattern and 20 variations of circle of Willis were studied. The Circles of Willis arteries were then colored, photographed, numbered and the abnormalities, if any, were noted.Results: Twenty variations were noted. The most common variation observed is in the anterior communicating artery followed by some other variations like the Posterior communicating arteries, Anterior cerebral artery and posterior cerebral artery (PCA) was found in 20 specimens.Conclusions: Knowledge on of variations in the formation of Circle of Willis, all surgical interventions should be preceded by angiography. Awareness of these anatomical variations is important in the neurovascular procedures.

A neurosurgical view of anatomical variations of the distal anterior cerebral artery: an anatomical study

2006 ◽  
Vol 104 (2) ◽  
pp. 278-284 ◽  
Author(s):  
Hasan Caglar Ugur ◽  
Gokmen Kahilogullari ◽  
Ali Firat Esmer ◽  
Ayhan Comert ◽  
Aysun B. Odabasi ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Cerebral Arteries ◽  
Anatomical Study ◽  
Anatomical Variations ◽  
Main Trunk ◽  
Surgical Interventions ◽  
Parietal Lobes ◽  
Distal Anterior Cerebral Artery ◽  
Human Brains

Object The vascularization pattern of the anatomy of the distal anterior cerebral artery (ACA) remains a subject of debate. The authors provide detailed information about the distal ACA and shed light on issues concerning it that have not previously been adequately discussed. Methods Fifty adult human brains (100 hemispheres) were obtained during routine autopsies. Cerebral arteries were separately cannulated and injected with latex. The vascularization patterns of the cortical branches and the variations of the arteries were investigated. The authors found that the distal ACA supplied all the inner surfaces of the frontal and parietal lobes and a median of one third of the outer surfaces. The origin of the arteries from the main trunk and their exit angles affected the vascularization patterns of the hemispheres. The authors redefine controversial terminology regarding the callosomarginal artery. Conclusions In each hemisphere, the vascularization pattern of the distal ACA is different to a greater or lesser extent. An awareness of this fact will contribute significantly to surgical interventions.

scholarly journals The role of anatomical anomalies in anterior communicating artery aneurysm rupture

2013 ◽  
Vol 19 (3) ◽  
pp. 147-153
Author(s):  
Cr.P Dimitriu ◽  
C. Ionescu ◽  
P. Bordei ◽  
I. Bulbuc
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Cerebral Aneurysms ◽  
Artery Aneurysm ◽  
Aneurysm Rupture ◽  
Circle Of Willis ◽  
Control Group ◽  
Anterior Communicating Artery ◽  
Aneurysm Size ◽  
Proper Patient Selection

Abstract Background and purpose:limited data exist to guide proper patient selection for preventive treatment of unruptured cerebral aneurysms. Cerebral aneurysms have been associated with anomalies of arterial segments that are forming the brain arterial circle of Willis but whether this association is also related to aneurysm rupture is not known. The occurrence of cerebral aneurysm rupture when a circle of Willis anomaly was present or absent was compared. Material and methods: we have performed this study on a number of 312 cases, of which 87 were dissections, 22 dissection followed by plastic injection, 135 magnetic resonance angiography (MRA), 75 computer tomography angiography (CTA), 40 digital subtraction angiographies (DSA), 30 in vivo (intraoperatory) observation. Brain vascular imaging was reviewed for aneurysm size, morphology and presence of anterior cerebral artery anomalies. Results: we divided the study group in 2 cohorts, one control group of 272 cases, in which we have study the anatomical variants occurrence and aneurysm occurrence in general population and another included 45 patients admitted thru emergency room for subarachnoid hemorrhage, of those 38 were ruptured aneurysm of anterior communicating artery (ACoA). Mean aneurysm size was 8.9 mm. An anterior cerebral artery anomaly was identified in 31 cases (81.5%). Multivariate analysis revealed a higher risk of aneurysm rupture when an anterior cerebral artery was present. Conclusions: this study shows that anterior cerebral artery anomalies are more commonly found in ruptured as opposed to unruptured ACoA aneurysms. The presence of an ACA anomaly may be an important characteristic for selecting patients for preventive aneurysm treatment.

scholarly journals Anterior communicating artery duplication associated with a triplication of anterior cerebral artery – A rare anatomical variation

2020 ◽  
Vol 11 ◽  
pp. 36
Author(s):  
Francisco Matos Ureña ◽  
Jose Gregorio Matos Ureña ◽  
Saul Almeida ◽  
Nícollas Nunes Rabelo ◽  
Mauricio Mandel ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Neurological Deficits ◽  
Systemic Hypertension ◽  
Prior History ◽  
Anterior Communicating Artery ◽  
Fisher Grade ◽  
Angio Ct

Background: The anterior communicating artery complex may presente several anatomical variations, and many abnormalities have been reported in radiologiacal and cadaveric studies. Case Description: The authors present a case of a 44-year-old Caucasian female, with a prior history of smoking and arterial systemic hypertension, admitted in the emergency department complaining of a sudden headache, nausea, and vomiting followed by tonic-clonic seizures. Computerized tomography (CT) and angiography (angio- CT) were carried out and showed Fisher Grade IV subarachnoid hemorrhage. Angio-CT revealed an anterior communicating artery (AComA) aneurysm. Minimally invasive craniotomy and microsurgical clipping were performed uneventfully. An unusual anatomical variation of the AComA complex characterized by duplication of the AComA associated with a triplication of anterior cerebral artery (ACA) was observed. The patient was discharged with no neurological deficits. Concluision: This unique anatomical variation of the AComA-ACA complex constitute risck factors for development and rupture of aneurysms.

scholarly journals Anterior Communicating Artery Aneurysms

2018 ◽  
Vol 27 (4) ◽  
pp. 295-300
Author(s):  
Nicollas Nunes Rabelo ◽  
Victor Hugo Honorato Pereira ◽  
Marco Aurélio Ferrari Sant'Anna ◽  
Neiffer Nunes Rabelo ◽  
Luiz Antônio Araújo Dias Júnior ◽  
...  
Keyword(s):  
Clinical Manifestations ◽  
Cerebral Aneurysms ◽  
Anatomical Study ◽  
Anatomical Variations ◽  
Emotional Disturbances ◽  
Anterior Communicating Artery ◽  
Anterior Circulation ◽  
Personality Changes ◽  
Level Of Consciousness ◽  
Intellectual Deficit

Introduction: Anterior communicating artery complex (ACoA) is the most frequent intracranial aneurysms (30%) and the most complex of the anterior circulation, due to variation of architecture, flow and many branches involved. This paper aims toestablish anatomical study and clinical manifestations, analyzing a series of cases of AcoA aneurysms. Methods: Articles in PubMed, Scientific Direct were reviewed using as key words, anatomy variations. In addition, AcoA features were analyzedbased on our series cases. Results: Most common anatomical variations found in the literature were: plexiform (30%), curling (33%), fenestration (21%), duplication (18%). Clinical features: Fasciobraquial hemiparesis, headache, personality changes,intellectual deficit, anxiety, fear, emotional disturbances, dizziness, agitation, hypokinesia, decreased level of consciousness. Total of 5-year series of 234 cerebral aneurysms (32 deaths -13.6 %). Analyzing the series, 41 ACoA (18%), with 32 ruptured (78%); 19 deaths (46%); 16 prior hypertension arterial (39%); and a ratio between women and men of 2.25 were found. Conclusion: In our series, we concluded that the ACoA aneurysms are more common in women, the diagnosis is often after rupture and highincidence of death. Probably the anatomical variations, location between bifurcation arteries, A1 characteristics and different direction of the domus, contribute for different outcomes and uncertain clinics. Therefore, to predict the topography of theaneurysm by analyzing only the clinic is difficult.

scholarly journals Bilateral Infraoptic Origin of Anterior Cerebral Arteries: A Rare Anomaly and its Embryological and Clinical Significance

2006 ◽  
Vol 12 (2) ◽  
pp. 155-159 ◽  
Author(s):  
S. Chakraborty ◽  
N. F. Fanning ◽  
S. K. Lee ◽  
K.G. TerBrugge
Keyword(s):  
Clinical Significance ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Cerebral Arteries ◽  
Anatomical Variations ◽  
Anterior Communicating Artery ◽  
Aneurysm Formation ◽  
Rare Anomaly

We describe a case of bilateral infraoptic origin of the anterior cerebral arteries associated with an anterior communicating artery (ACOM) aneurysm. Anatomical variations of the anterior cerebral artery (ACA) are common; however, bilateral infraoptic course of the anterior cerebral artery is extremely rare. Since an infraoptic course of the ACA is associated with ACOM aneurysm formation, an understanding of the cerebrovascular anatomy and embryology is important for appropriate management of the aneurysm.

scholarly journals Cerebral Angiographic Study of Anatomical Variations of Anterior Cerebral Artery Complex in Bangladeshi Population

2016 ◽  
Vol 32 (2) ◽  
pp. 56-62
Author(s):  
Md Amir Hossain ◽  
Sharif Uddin Khan ◽  
Kazimohibur Rahman ◽  
Sirajeeshafiqul Islam ◽  
Khairulkabir Patwary ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Internal Carotid ◽  
Anterior Cerebral Artery ◽  
Cerebral Arteries ◽  
Anatomical Variations ◽  
Anterior Communicating Artery ◽  
Terminal Branch ◽  
Complex Anatomy ◽  
Proximal Anterior Cerebral Artery ◽  
Bangladeshi Population

Background: Anterior cerebral artery is an important terminal branch of internal carotid artery. It forms the anterior component of circle of Willis along with the anterior communicating artery. It is known for the frequent variations. The knowledge of anatomical variations in anterior cerebral artery is of considerable help to clinicians and interventionists. Method: Morphology and variations of the anterior cerebral arteries and the anterior communicating artery were studied in 90 patients undergone digital subtraction angiography (DSA). Results: Variations were found in 33% (n=30). Variations of the segments in relation with size, course, communications and terminations of the anterior cerebral artery (ACA) were noted. These were divided into different groups like hypoplasia, aplasia, duplication and fenestrations. Hypoplasia/Aplasia of proximal anterior cerebral artery (A1) was 24.5% in right side and 9% in left side. Anterior communicating artery (AComA) was found absent in 9% and fenestration in 9%. Callosomarginal artery was found absent in 2.2% in right side and 4.5% in left side. In right callosomarginal artery 6% had abnormal origin and 3.5% abnormal in left side.Pericallosal artery was present 100% on both sides. Conclusion: Variations of anterior cerebral artery complex anatomy is found common in Bangladeshi population. Bangladesh Journal of Neuroscience 2016; Vol. 32 (2): 56-62

scholarly journals Digital Subtraction Angiography of Anterior Cerebral Artery Complex in Indian Population at Two Tertiary Super-Specialty Hospitals

2018 ◽  
Vol 4 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Md Amir Hossain ◽  
Shakir Husain ◽  
Md Shohidul Islam ◽  
Muhammed Abdul Momen Khan
Keyword(s):  
Digital Subtraction Angiography ◽  
Cerebral Artery ◽  
Indian Population ◽  
Anterior Cerebral Artery ◽  
Anatomical Variations ◽  
Anterior Communicating Artery ◽  
Terminal Branch ◽  
Digital Subtraction ◽  
Complex Anatomy ◽  
Specialty Hospital

Background: Cerebral circulation has different variations in blood supply. Anterior cerebral artery is an important terminal branch of internal carotid artery. It forms the anterior component of circle of Willis along with the anterior communicating artery. The knowledge of anatomical variations in anterior cerebral artery is of considerable help to clinicians.Objective: The purpose of the study is to find out common anatomical variations of anterior cerebral artery complex by digital subtraction angiography in Indian population.Methodology: This descriptive cross-sectional study was conducted in the Neurointervention department of Max Super-specialty Hospital, New Delhi and Neo Multi-specialty Hospital, Noida, India during July 2016 to December 2016 for a period of six (06) months. Patients admitted in the Neurointervention department for digital subtraction angiography (DSA) were included in this study. Sampling technique was purposive. The angiogram machine was SIEMENS Artis Zee system and framing rate was 4f/sec. Morphology and variations of the anterior cerebral arteries and the anterior communicating artery were studied in 75 patients undergone cerebral DSA.Results: Variations were found in 48% (n=36). Variations of the segments in relation with size, course, communications and terminations of the anterior cerebral artery (ACA) were noted. These were divided into different groups like hypoplasia, aplasia, duplication and fenestrations. Hypoplasia/Aplasia of proximal anterior cerebral artery (A1) was 13.3% in right side and 5.3% in left side. Anterior communicating artery (AComA) was found absent in 10.7% and fenestration in 12%. Callosomarginal artery was found absent in 1.3% in right side and 5.3% in left side. In right callosomarginal artery 6.8% had abnormal origin and 4.2% abnormal in left side. Pericallosal artery was present 100% on both sides.Conclusion: Variations of anterior cerebral artery complex anatomy is found common in Indian population. Among them hypoplasia/aplasia is most commonJournal of National Institute of Neurosciences Bangladesh, 2018;4(1): 12-17

scholarly journals Anatomy of the Middle Cerebral Artery and some related arteries on 256 MSCT

2019 ◽  
Vol 35 (2) ◽  
Author(s):  
Nguyen Tuan Son ◽  
Ngo Xuan Khoa ◽  
Nguyen Quoc Dung ◽  
Dao Dinh Thi
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Internal Carotid ◽  
Anatomical Study ◽  
Anatomical Variations ◽  
Anterior Communicating Artery ◽  
Microsurgical Anatomy ◽  
Medical University

Abstracts: Introduction: studying the percentage of display and dimensions of the middle cerebral artery and some related arteries on on  256 MSCT data. Methods: A cross-sectional study, with sample size of 261. Results: The percentage of display of middle cerebral artery is 100%; the posterior artery is 76.4; Internal Carotid Artery is 100%. The average diameter, average length are (mm) M1T respectively: 3.25 ± 0.43 and 19.98 ± 6.10; M1 P: 3.26 ± 0.46 and 19.68 ± 6.28; M2T left 2.10 ± 0.48 and 22.85 ± 13.18; M2T right 2.09 ± 0.49 and 23.42 ± 11.89; M2D left 2.48 ± 0.49 and 31.73-16.36; M2D  right 2.55 ± 0.49 and 29.11 ± 15.31. PCoA T 1.29 ± 0.63 and 11.87 ± 4.87; PCoA P 1.26 ± 0.66 and 14.02 ± 9.13; Conclusions: The size of the middle cerebral artery and some related  arteries were accurately evaluated in the study, the image of vascular anatomy was display clearly. Keywords Middle cerebral artery, cerebral angiography, multi-slices computed tomography ... References [1] H.V. Cúc. To the study of arterial blood supply vessels for Vietnamese adults, Ministry of Health research project, Hanoi Medical University, Hanoi, Vietnam (2000) (in Vietnamese).[2] H.M.Tú. To the study of cerebral artery anatomy on MSCT 64 image, Master's thesis in Medicine, Hanoi Medical University, Hanoi, Vietnam (2011) (in Vietnamese).[3] Ogeng'o, J.A. Geometric features of Vertebrobasilar arterial system in adult Black Kenyans, Int. J. Morphol, 36(2) (2018) 544 - 50. [4] KrzyżewsKi, R.M.. Variation of the anterior communicating artery complex and occurrence of anterior communicating artery aneurysm: A2 segment consideration, Folia medica cracoviensia, LIV (1) (2014) 13 - 20.[5] Jiménez-Sosa, M.S. Anatomical variants of Anterior cerebral arterial circle. A study by Multidetector computerized 3D tomographic angiography, Int J. Morphol 35(3) 1121 – 28.[6] Hamidi, C. (2013). Display with 64-detector MDCT angiography of cerebral vascular variations, Surg Radiol Anat 35 (2017) 729 – 36.[7] Dimmick, S.J., et al. Normal variations of the cerebral circulation at multidetector CT angiography, Radiographics 29(4) (2009) 1027 – 43.[8] P.T.Hà. To the study of Willis polygonal anatomy on MSCT 128 image of patients with cerebral aneurysm, Specialish level 2 thesis in Hanoi Medical University, Hanoi, Vietnam.[9] Saha, A. (2013). Variation of posterior communicating artery in human brain: a morphological study, Gomal Journal of Medical Sciences 11(1) (2018). 42 – 6.[10] Gullari, G. K. The branching pattern of the middle cerebral artery: is the intermediate trunk real or not? An anatomical study correlating with simple angiography, J.Neurosurg, 116 (2012) 1024 - 34.[11] Canaz, H., el al Morphometric analysis of the arteries of Willis Polygon, Romanian Neurosurgery, XXXII (1) (2018) 56 - 64.[12] Pedroza, A. (1987). Microanatomy of the Posterior Communicating Artery, Neurosurgery 20(2) (2018) 229 – 35.[13] Keeranghat, P. P., et al. Evaluation of normal variants of circle of Willis at MRI, Int.J. Res Med Sci, 6(5) (2018) 1617 - 22.[14] Tao, X., Yu, et al. Microsurgical anatomy of the anterior communicating artery complex in adult Chinese heads, Surgical Neurology 65 (2006) 155 – 61.[15] Krejza, J., et al. Carotid artery diameter in Men and Women and the relation to body and neck size, Stroke, 37 (2006) 1103 - 5.[16] Masatoukawashima. Microsurgical anatomy of cerebral revascularization. Part I: Anterior circulation, J.Neurosurg, 102 (2005) 116 – 31.[17] Jeyakumar.R., et al, Study of Anatomical Variations in Middle Cerebral Artery, Int.J.Sci Stud 5(12) (2018) 5-10. [18] Brzegowy, P, et al Middle cerebral artery anatomical variations and aneurysms: a retrospective study based on computed tomography angiography findings, Folia Morphol, 77(3) (2018) 434 – 40.[19] Rohan, V., et al, Length of Occlusion predicts recanalization and outcome after intravenous thrombolysis in middle cerebral artery stroke, Stroke, 45 (2014) 2010 - 17.[20] Vijaywargiya, M., et al. Anatomical study of petrous and cavernous parts of internal carotid artery, Anat Cell Biol, 50 (2017) 163 - 70.[21] Bouthillier, et al Segments of the internal carotid artery: a new classification, Neurosurgery, 38(3), (1996) 425 - 32.  

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