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Internal artery carotid

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https://www.readbyqxmd.com/read/29474662/radiographic-analysis-of-the-vidian-canal-and-its-utility-in-petrous-internal-carotid-artery-localization
#1
Eric C Mason, Patricia A Hudgins, Gustavo Pradilla, Nelson M Oyesiku, C Arturo Solares
BACKGROUND: Endoscopic endonasal surgery of the skull base requires expert knowledge of the anatomy and a systematic approach. The vidian canal is regarded as a reliable landmark to localize the petrous internal carotid artery (pICA) near the second genu, which can be used for orientation in deep skull base approaches. There is controversy about the relationship between the vidian canal and the pICA. OBJECTIVE: To further establish the vertical relationship between the vidian canal and the pICA to aid in surgical approaches to the skull base...
February 21, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29473985/intracranial-vessel-wall-lesions-in-patients-with-systematic-lupus-erythematosus
#2
Satoru Ide, Shingo Kakeda, Mari Miyata, Shigeru Iwata, Naoaki Ohkubo, Shingo Nakayamada, Koichiro Futatsuya, Keita Watanabe, Junji Moriya, Yoshihisa Fujino, Yoshiya Tanaka, Yukunori Korogi
BACKGROUND: Systemic lupus erythematosus (SLE) is related to vasculitis, which causes brain infarctions; however, the pathology of large cerebral vessels has not been fully established. PURPOSE: To demonstrate the prevalence of vessel wall lesions (VWLs) in SLE patients using 3D vessel wall imaging and to assess the relationship between VWLs and brain infarctions. STUDY TYPE: Retrospective. SUBJECTS: Sixty SLE patients and 50 healthy subjects (HS)...
February 23, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29473783/anterior-clinoidectomy-using-an-extradural-and-intradural-2-step-hybrid-technique
#3
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Xiaoming Guo, Jose Juan González Sánchez, Halima Tabani, Sergio García, Jan-Karl Burkhardt, Arnau Benet
Anterior clinoidectomy is a difficult yet essential technique in skull base surgery. Two main techniques (extradural and intradural) with multiple modifications have been proposed to increase efficiency and avoid complications. In this study, the authors sought to develop a hybrid technique based on localization of the optic strut (OS) to combine the advantages and avoid the disadvantages of both techniques. Ten cadaveric specimens were prepared for surgical simulation. After a standard pterional craniotomy, the anterior clinoid process (ACP) was resected in 2 steps...
February 23, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29472231/carotid-artery-remodeling-is-segment-specific-an-in-vivo-study-by-vessel-wall-magnetic-resonance-imaging
#4
Hiroko Watase, Jie Sun, Daniel S Hippe, Niranjan Balu, Feiyu Li, Xihai Zhao, Venkatesh Mani, Zahi A Fayad, Valentin Fuster, Thomas S Hatsukami, Chun Yuan
OBJECTIVE: Early atherosclerosis is often undetected due in part to compensatory enlargement of the outer wall, termed positive remodeling. Variations in hemodynamic conditions and clinical factors influence the patterns of remodeling. The carotid artery provides an opportunity to examine these variations because of the unique geometry of the carotid bulb. This study aimed to determine differences in remodeling of the common, internal, and bifurcation segments of the carotid using magnetic resonance imaging...
February 22, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29470857/numerical-study-on-the-hemodynamics-of-patient-specific-carotid-bifurcation-using-a-new-mesh-approach
#5
S I S Pinto, J B L M Campos, E Azevedo, C F Castro, L C Sousa
The definition of a suitable mesh to simulate blood flow in the human carotid bifurcation has been investigated. In this research, a novel mesh generation method is proposed: hexahedral cells at the centre of the vessel and a fine grid of tetrahedral cells near the artery wall, in order to correctly simulate the large blood velocity gradients associated with specific locations. The selected numerical examples to show the pertinence of the novel generation method are supported by carotid ultrasound (US) image data of a patient-specific case...
February 22, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29468103/atypical-location-of-intracerebral-hemorrhage-in-moyamoya-disease
#6
Zainah A Abuoliat, Basma A AlFarhan, Aysha A Alshahrani, Amal A AlFarhan, Makki A Almuntashri, Naser Alotaibi
Moyamoya disease is a chronic, progressive bilateral occlusion or stenosis of terminal internal carotid arteries as well as the proximal anterior and middle cerebral arteries. Hemorrhage of the splenium of the corpus callosum rarely occurs with moyamoya disease. In this article, we report a case of a 53-year-old woman diagnosed with moyamoya disease by cerebral angiography. She presented to the emergency department complaining of unsteadiness and a tendency to fall forward for one week. The patient was investigated with head computed tomography (CT) scan upon presentation revealing atypical location of hemorrhage in the corpus callosum, mainly in the splenium...
December 14, 2017: Curēus
https://www.readbyqxmd.com/read/29464422/relationship-between-carotid-artery-atherosclerosis-and-bulb-geometry
#7
Sekou Gregg, Terry Y Li, Marie-France Hétu, Stephen C Pang, Paul Ewart, Amer M Johri
The carotid bifurcation is a common site of atherosclerotic plaque. Plaque development is thought to occur preferentially at geometrically predisposed areas such as arterial branch points. The aim of this study was to investigate the geometric and anatomical variables that contribute to the development of carotid plaque using three-dimensional (3D) ultrasound. Sixty-seven consecutive outpatients referred for elective coronary angiography underwent 3D carotid ultrasound scans for the purpose of carotid plaque quantification...
February 20, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29462837/reduced-arterial-vasodilation-in-response-to-hypoxia-impairs-cerebral-and-peripheral-oxygen-delivery-in-hypertensive-men
#8
Igor A Fernandes, Marcos P Rocha, Monique O Campos, João D Mattos, Daniel E Mansur, Helena N M Rocha, Paulo A C Terra, Vinícius P Garcia, Natália G Rocha, Niels H Secher, Antonio C L Nóbrega
This study investigated whether hypertension impairs isocapnic hypoxia (IH)-induced cerebral and skeletal muscle hyperemia to an extent that limits oxygen supply. Oxygen saturation (Oxymetry), mean arterial pressure (MAP, photoplethysmography), muscle sympathetic nerve activity (MSNA, microneugraphy), and femoral (FA), internal carotid (ICA) and vertebral (VA) artery blood flow (BF, Doppler ultrasound) were quantified in 9 normotensive (NT, 40 ± 11 yrs., systolic (SP) 119 ± 7 mmHg and diastolic pressure (DP) 73 ± 6 mmHg) and 9 hypertensive men (HT, 44 ± 12 yrs...
February 20, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29462731/another-endovascular-therapy-strategy-for-acute-tandem-occlusion-protect-expand-aspiration-revascularization-stent-pears-technique
#9
Ting-Yu Yi, Wen-Huo Chen, Yan-Min Wu, Mei-Fang Zhang, Ding-Lai Lin, Xiao-Hui Lin
PURPOSE: Initial stenotic occlusion of the internal carotid artery (ICA) with intracranial artery occlusion in acute ischemic stroke is associated with high morbidity and can benefit from endovascular therapy. However, the optimal endovascular strategy is unclear. This study aimed to evaluate the feasibility of the "half" anterograde approach and clinical outcome of treated patients. Revascularization validity of the two "half" anterograde approach with (PEARS technique) or without (plain technique) using an embolic prevention device and aspiration was also compared...
February 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29461944/cervical-internal-carotid-artery-occlusion-versus-pseudo-occlusion-can-ct-angiography-help-distinguish-these-in-the-acute-stroke-setting
#10
https://www.readbyqxmd.com/read/29460886/-conventional-and-eversion-carotid-endarterectomy-for-internal-carotid-artery-stenosis
#11
A V Gavrilenko, A V Kuklin, V V Fomina
No abstract text is available yet for this article.
2018: Khirurgiia
https://www.readbyqxmd.com/read/29460141/complete-restitution-of-the-ischemic-penumbra-after-successful-thrombectomy-a-pilot-study-using-quantitative-mri
#12
Alexander Seiler, Arne Lauer, Ralf Deichmann, Ulrike Nöth, Se-Jong You, Waltraud Pfeilschifter, Oliver C Singer, Ulrich Pilatus, Marlies Wagner
PURPOSE: Endovascular thrombectomy is highly effective in patients with proximal large artery occlusion but the relevance of reperfusion injury after recanalization is a matter of debate. The aim of this study was to investigate potential residual metabolic distress and microstructural tissue damage or edema after reperfusion using quantitative oxygen-sensitive T2' and T2-mapping in patients successfully treated by thrombectomy. METHODS: Included in this study were 11 patients (mean age 70 ± 11...
February 19, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29459390/first-pass-effect-a-new-measure-for-stroke-thrombectomy-devices
#13
Osama O Zaidat, Alicia C Castonguay, Italo Linfante, Rishi Gupta, Coleman O Martin, William E Holloway, Nils Mueller-Kronast, Joey D English, Guilherme Dabus, Tim W Malisch, Franklin A Marden, Hormozd Bozorgchami, Andrew Xavier, Ansaar T Rai, Michael T Froehler, Aamir Badruddin, Thanh N Nguyen, M Asif Taqi, Michael G Abraham, Albert J Yoo, Vallabh Janardhan, Hashem Shaltoni, Roberta Novakovic, Alex Abou-Chebl, Peng R Chen, Gavin W Britz, Chung-Huan J Sun, Vibhav Bansal, Ritesh Kaushal, Ashish Nanda, Raul G Nogueira
BACKGROUND AND PURPOSE: In acute ischemic stroke, fast and complete recanalization of the occluded vessel is associated with improved outcomes. We describe a novel measure for newer generation devices: the first pass effect (FPE). FPE is defined as achieving a complete recanalization with a single thrombectomy device pass. METHODS: The North American Solitaire Acute Stroke Registry database was used to identify a FPE subgroup. Their baseline features and clinical outcomes were compared with non-FPE patients...
February 19, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29456964/anatomical-correlation-between-nasal-vascularisation-and-the-design-of-the-endonasal-pedicle-flaps
#14
Juan R Gras-Cabrerizo, Elena García-Garrigós, Joan R Montserrat-Gili, Juan R Gras-Albert, Rosa Mirapeix-Lucas, Humbert Massegur-Solench, Miquel Quer-Agusti
Arteries that supply the nasal septum and the lateral nasal wall include vessels that originate from the external carotid artery and from the internal carotid artery. A variety of local endonasal pedicle flaps can be used in different anatomical areas for endoscopic skull base reconstruction. The main flaps are based on terminal branches of the sphenopalatine artery and on anterior ethmoidal artery. This study will describe the anatomy of these vessels and their relationship with the main flaps.
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29456597/insertion-rates-and-complications-of-central-lines-in-the-uk-population-a-pilot-study
#15
Adrian Vk Wong, Nitin Arora, Olusegun Olusanya, Ben Sharif, Robert M Lundin, A Dhadda, S Clarke, R Siviter, M Argent, Gavin Denton, Anna Dennis, Angela Day, Tamas Szakmany
Background: Central venous catheters are inserted ubiquitously in critical care and have roles in drug administration, fluid management and renal replacement therapy. They are also associated with numerous complications. The true number of central venous catheters inserted per year and the proportion of them associated with complications are unknown in the UK. Methods: We performed a prospective audit at five hospitals, as a feasibility pilot for a larger, nationwide audit...
February 2018: Journal of the Intensive Care Society
https://www.readbyqxmd.com/read/29455344/lower-third-molar-displaced-to-lateral-pharyngeal-space-after-mandibular-angle-fracture-a-case-report
#16
Rodrigo Dos Santos Pereira, Jonathan Ribeiro da Silva, João Paulo Bonardi, Eduardo Hochuli-Vieira
The removal of displaced dental elements from deep anatomical spaces is a condition that requires the knowledge of the region and skills to perform the procedure. The lateral pharyngeal space contains important structures such as the internal carotid artery and close proximity with the cranium basis. The aim of this paper is to report a clinical case of a lower third molar displaced to the lateral pharyngeal space after a mandibular angle fracture and its treatment by surgical intervention. The tooth was removed under general anesthesia by direct approach and the fracture was reduced and fixed with a plate and screws...
February 18, 2018: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29453735/predictors-of-antegrade-flow-at-internal-carotid-artery-during-carotid-artery-stenting-with-proximal-protection
#17
Kei Harada, Kosuke Kakumoto, Shogo Oshikata, Kozo Fukuyama
BACKGROUND: Carotid artery stenting (CAS) with proximal occlusion effectively prevent distal cerebral embolism by flow arrest at internal carotid artery (ICA); however, the method can expose antegrade flow at ICA due to incomplete flow arrest. The aim of this study was to identify predictors of antegrade flow during CAS with proximal protection. METHODS: We retrospectively analyzed clinical and angiographic data among 143 lesions treated with CAS with proximal protection by occluding the common carotid artery (CCA) and external carotid artery (ECA)...
February 16, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29453251/a-novel-adipokine-fam19a5-inhibits-postinjury-neointima-formation-through-sphingosine-1-phosphate-receptor-2
#18
Yingbao Wang, Dixin Chen, Yan Zhang, Pingzhang Wang, Can Zheng, Songyang Zhang, Bing Yu, Lu Zhang, Guizhen Zhao, Baihui Ma, Zeyu Cai, Nan Xie, Shiyang Huang, Ziyi Liu, Xiaoning Mo, Youfei Guan, Xian Wang, Yi Fu, Dalong Ma, Ying Wang, Wei Kong
Background -Obesity plays crucial roles in the development of cardiovascular diseases (CVDs). However, the mechanisms that link obesity and CVDs remain elusive. Compelling evidence indicates that adipokines play an important role in obesity-related CVDs. Here, we found a new adipokine named family with sequence similarity 19, member A5 (FAM19A5), a protein with unknown function that was predicted to be distantly related to the CC-chemokine family. We aimed to test whether adipose-derived FAM19A5 regulates vascular pathology upon injury...
February 16, 2018: Circulation
https://www.readbyqxmd.com/read/29452906/extracranial-arterial-wall-volume-is-increased-and-shows-relationships-with-vascular-mri-measures-in-idiopathic-parkinson-s-disease
#19
Stephen Ball, Sarah Al-Bachari, Laura M Parkes, Hedley C A Emsley, Charles N McCollum
OBJECTIVE: Idiopathic Parkinson's disease (IPD) is the second most common neurodegenerative disorder, often complicated by dementia. Cardiovascular risk factors and spontaneous cerebral emboli (SCE) are strongly associated with Alzheimer's (AD) and vascular dementia (VaD). We measured SCE in the middle cerebral artery and arterial wall volume in the extracranial arteries in patients with IPD and controls, and explored the relationships with structural and physiological MRI brain neurovascular measures...
February 10, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29452069/idiopathic-isolated-unilateral-hypoglossal-nerve-palsy-a-report-of-2-cases-and-review-of-the-literature
#20
Akio Shibata, Masashi Kimura, Kenichiro Ishiabashi, Masahiro Umemura
Hypoglossal nerve palsy (HNP) is a common finding in neurologic diseases when associated with other cranial nerve palsies or further pathology and exhibits characteristic clinical manifestations, including unilateral atrophy of the musculature of the tongue. It occasionally appears as the initial or solitary sign of an intracranial or extracranial space-occupying lesion, head or neck injury, or vascular abnormality of the internal carotid artery. There are few cases of idiopathic isolated unilateral HNP, which should be diagnosed through exclusion...
February 2, 2018: Journal of Oral and Maxillofacial Surgery
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