Geometric Features of Vertebrobasilar Arterial System in Adult Black Kenyans

Ogeng’o, Julius A; Mwachaka, Philip Maseghe; Odhiambo, Dan E.; Sinkeet-Hemed-Elbusaidy, Simeon R.; Olabu, Beda; Inyimili, Martin

doi:10.4067/s0717-95022018000200544

Cited by 6 publications

(5 citation statements)

References 15 publications

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“…Ogeng'o et al found the length, diameter, conflux, and bifurcation angles exhibiting sexually dimorphic pattern, with the BA being notably wider for 4.5 mm and longer for mean length 27.1 mm in females contrasted to men. [23] Additionally, 79.8% of conflux occurred at the bulbopontine sulcus, comparable to the Indians but much higher than in the Polish and Turkish populations. Therefore, females may be more susceptible to atherosclerosis of the VB junction.…”

Section: Epidemiologymentioning

confidence: 72%

“…This should assist prospective designs and utilization in diagnostic and interventional schemes. [23] VBS account for 37% of <2 cm cerebellar infarctions (CI) (small CI strokes), which frames 1/3 of the ISs in the posterior location, which most commonly involve the posterior lobe and occasionally the anterior and flocculonodular lobes with the favorable clinical outcome as compared to large CIs. [24] PCA territory is responsible for most embolic stroke of undetermined source, majorly subclinical atrial tachyarrhythmia.…”

Section: Epidemiologymentioning

confidence: 99%

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A Narrative Review of Contemporary Global Perspectives into Epidemiology, Treatment, and Prognosis of Vertebrobasilar Strokes

Msigwa

2021

RJMHS

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Blood flow interruptions to the posterior cerebral circulation hallmark vertebrobasilar strokes (VBS), leading to mortality and significant disabilities, yet optimal therapy prevails unpublished. Recent epidemiological evidence indicates that VBS account for nearly 1/5 of all ischemic strokes globally, with acute basilar artery occlusion (BAO) contributing significant disabilities in nearly 1/3 of the victims. The prevalence of VBS in Africa is close to 5%, majorly in large intracranial vessels. Etiologically, Stenosis accounts for 20% of all VBS, while aneurysms face up to a 3% rupture rate. Furthermore, intravenous alteplase is the gold standard medical therapy for the cases presenting within 3 to 4.5 hours post-baseline regarding management options. Nevertheless, there is no consensus for BAO beyond 4.5 hours post-onset. Stent retrievers are the first-line endovascular reperfusion therapy device proposed. However, an 18% risk of in-stent restenosis is a significant drawback. Comprehensive prognostic factors are addressed in this review. However, prospective, multicenter, controlled studies are needed to clarify the time window dilemmas facing posterior circulation strokes. This narrative review explores recent VBS epidemiology, management advances, and prognosis.Rwanda J Med Health Sci 2021;4(3):418-429

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Section: Epidemiologymentioning

confidence: 72%

Section: Epidemiologymentioning

confidence: 99%

A Narrative Review of Contemporary Global Perspectives into Epidemiology, Treatment, and Prognosis of Vertebrobasilar Strokes

Msigwa

2021

RJMHS

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“…The SCA typically originates from the basilar artery, as reported by most authors with a probability of 95-100%, a finding consistent with the results of this study. Additionally, the SCA may arise from the posterior cerebral artery in approximately 1.8% of cases, or sharing a common trunk with the posterior cerebral artery from the basilar artery, occurring in approximately 3.7% of cases [6,[10][11][12][13][14][15][16][17].…”

Section: Discussionmentioning

confidence: 99%

“…Nearly all authors have reported cases of duplication of the SCA, with an average occurrence of 14%. Cases of bilateral duplication, triplication or absence of the SCA were much less common, with averages of 1.6%, 0.5%, and 0.9%, respectively [6,[10][11][12][13][14][15][16][17]. Note: BAbasilar artery; VAvertebral artery; * -Data is given as percentages (here and in Tab.…”

Section: Discussionmentioning

confidence: 99%

Individual variability of human cerebellar arteries and their perfusion territories

Kalinichenko,

Stepanenko

2024

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Background. Three paired arteries provide the blood supply of the cerebellum: the superior cerebellar artery, anterior inferior cerebellar artery, and posterior inferior cerebellar artery. The origin of these arteries, the extent of their development and their duplication may serve as factors influencing variations in the vascular supply territories. The aim of this study was to determine the characteristics of individual variability of the human cerebellar arteries and their perfusion territory. Methods. The study was conducted on 100 samples. Each sample included cerebellum and an adjacent brainstem. They were obtained from adult human cadavers (67 male and 33 female) who died of causes unrelated to brain pathology at the age between 20 and 92. To analyze the variability of perfusion territories of the cerebellar arteries, a method involving sectorial division of the superior and inferior surfaces of the cerebellum was proposed. Results and conclusion. In 95 samples, the SCA arose from the basilar artery on both sides as a single vessel. In two samples, it arose as a duplicate trunk from the basilar artery bilaterally. We also found unilateral duplication of the left SCA in three samples. The AICA arose from the lower third of the basilar artery in 69 samples on the right and in 77 on the left; from the middle third in 11 on the right and 11 on the left. It was presented as a common trunk with the PICA in 18 samples on the right and 10 on the left. The AICA was found duplicated in one sample bilaterally. In two samples it was absent on one side. The PICA most often arose from the vertebral artery (82 samples), rarely as a common trunk with AICA. It was duplicated in two samples on the left and absent in four samples on the right and four on the left. In cases of duplication of the PICA, its perfusion territory expands towards the central sectors of the inferior surface of the cerebellum. In the absence of the AICA, the PICA enlarges its perfusion territory, replacing it, and vice versa. Occasionally, the absent or poorly developed PICA is replaced by a PICA from the opposite hemisphere. There were not any cases of simultaneous absence of both AICA and PICA on one side. The probability of the extension of branches of the AICA onto specific sectors of the inferior surface of the cerebellum decreases from anterior to posterior and from the sides towards the center, while for the PICA there is an opposite trend. Additionally, this study describes three variations of the course of the arteries when both AICA and PICA originate as a common trunk from the basilar artery.

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“…Với PCoA là ĐM nhỏ nhưng có vai trò quan trọng, kết nối 2 hệ mạch chính cấp máu cho não là ICA và hệ sống-nền, đây là ĐM có tỉ lệ biến thể cao nhất trong số các ĐM được nghiên cứu, tỉ lệ không hiện ảnh trung bình là 21,65 trong đó bên trái là 22,6%; phải là 20,7%. Tỉ lệ hiện ảnh kém là 1,92%, theo H.M. Tú[3], tỉ lệ không hiện ảnh 2 bên là 30,39%; không hiện ảnh 1 bên là 15,68%, theo chúng tôi đây là tỷ lệ cao. Theo P.T.Hà[8], tỉ lệ này là 23,85% (52/218) khi nghiên cứu bằng MSCT và 10,55% khi nghiên cứu bằng DSA; A.Saha[9] khi nghiên cứu phẫu tích có 38,2% không thấy PCoA.…”

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

Son¹,

Khoa²,

Dũng³

et al. 2019

MPS

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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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Geometric Features of Vertebrobasilar Arterial System in Adult Black Kenyans

Cited by 6 publications

References 15 publications

A Narrative Review of Contemporary Global Perspectives into Epidemiology, Treatment, and Prognosis of Vertebrobasilar Strokes

A Narrative Review of Contemporary Global Perspectives into Epidemiology, Treatment, and Prognosis of Vertebrobasilar Strokes

Individual variability of human cerebellar arteries and their perfusion territories

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

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