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Vertebral artery dissect

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https://www.readbyqxmd.com/read/28526034/differential-darc-ackr1-expression-distinguishes-venular-from-non-venular-endothelial-cells-in-murine-tissues
#1
Aude Thiriot, Carolina Perdomo, Guiying Cheng, Igor Novitzky-Basso, Sara McArdle, Jamie K Kishimoto, Olga Barreiro, Irina Mazo, Robinson Triboulet, Klaus Ley, Antal Rot, Ulrich H von Andrian
BACKGROUND: Intravascular leukocyte recruitment in most vertebrate tissues is restricted to postcapillary and collecting venules, whereas capillaries and arterioles usually support little or no leukocyte adhesion. This segmental restriction is thought to be mediated by endothelial, rather than hemodynamic, differences. The underlying mechanisms are largely unknown, in part because effective tools to distinguish, isolate, and analyze venular endothelial cells (V-ECs) and non-venular endothelial cells (NV-ECs) have been unavailable...
May 19, 2017: BMC Biology
https://www.readbyqxmd.com/read/28521360/exposure-of-the-external-carotid-artery-through-the-posterior-triangle-of-the-neck-a-novel-approach-to-facilitate-bypass-procedures-to-the-posterior-cerebral-circulation
#2
Ali Tayebi Meybodi, Michael T Lawton, Pooneh Mokhtari, Olivia Kola, Ivan H El-Sayed, Arnau Benet
BACKGROUND: The external carotid artery (ECA) is the main high-flow donor for extracranial-intracranial revascularization procedures. However, anatomic restraints limit the availability of ECA in posterior exposures of the craniocervical junction aimed for bypass to distal vertebral artery segments. OBJECTIVE: To examine the feasibility and safety of exposure of the ECA through the posterior triangle of the neck. METHODS: A preliminary feasibility study on the posterior neck exposure of the ECA was performed in 1 cadaveric head (2 sides) followed by a morphometric study on 9 cadaveric heads (18 sides)...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28509611/efficacy-of-high-resolution-cone-beam-ct-in-the-evaluation-of-perforators-in-vertebral-artery-dissection
#3
Kenji Shimada, Michihiro Tanaka, Keisuke Kadooka, Hiromu Hadeishi
Introduction A major complication of internal coil trapping for vertebral artery dissection (VAD) is medullary infarction associated with perforator occlusion. Currently, higher spatial resolution imaging can be obtained with high-resolution cone-beam computed tomography (VASO CT), and the efficacy of perforator visualization adjacent to VAD was examined. Methods Eight patients who underwent internal coil trapping or stent-supported coil embolization underwent VASO CT to evaluate perforators around VAD. Visualization of perforators was compared with conventional digital subtraction angiography (DSA) and three-dimensional rotational angiography (3D-RA)...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28509423/analysis-of-the-relationship-between-the-double-transverse-foramen-and-the-possibility-of-developing-clinical-symptoms-after-whiplash
#4
Juan A Sanchis-Gimeno, Marcelino Perez-Bermejo, Luis Rios, Susanna Llido, Markus Bastir, Esther Blanco-Perez, Federico Mata-Escolano
INTRODUCTION: Currently there is no information about the possibility of developing clinical symptoms after whiplash in double transverse foramen subjects. Our aim was to test whether subjects with double transverse foramen have an increased risk of presenting with acute headache, dizziness, vertebral artery dissection, and vomiting after whiplash. METHODS: We recorded the absence/presence of double transverse foramen, and the absence/presence of neck pain, acute headache, dizziness, vertebral artery dissection, and vomiting in 85 patients who had suffered whiplash injuries in car rear-end impacts in road traffic accidents...
May 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28497262/arterial-tortuosity-in-patients-with-spontaneous-cervical-artery-dissection
#5
Alessia Giossi, Dikran Mardighian, Filomena Caria, Loris Poli, Valeria De Giuli, Paolo Costa, Andrea Morotti, Massimo Gamba, Nicola Gilberti, Marco Ritelli, Marina Colombi, Maria Sessa, Mario Grassi, Alessandro Padovani, Roberto Gasparotti, Alessandro Pezzini
PURPOSE: The aim of this study was to test the hypothesis that patients with spontaneous cervical artery dissection (CeAD) have increased arterial tortuosity, and the objective quantification of such a tortuosity may aid in the identification of subjects at increased risk of disease. METHODS: In the setting of a hospital-based, case-control study, we used the vertebral tortuosity index (VTI) measured on magnetic resonance angiography, a validated method for the assessment and quantification of arterial tortuosity, to compare the degree of tortuosity in a series of consecutive patients with spontaneous CeAD and of age- and sex-matched patients with ischemic stroke unrelated to CeAD (non-CeAD IS) and stroke-free subjects...
May 11, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28493024/de-novo-vertebral-artery-dissecting-aneurysm-after-internal-trapping-of-the-contralateral-vertebral-artery
#6
Naoya Kidani, Kenji Sugiu, Tomohito Hishikawa, Masafumi Hiramatsu, Jun Haruma, Shingo Nishihiro, Yu Takahashi, Isao Date
We present the case of a de novo vertebral artery dissecting aneurysm (VADA) after endovascular trapping of a ruptured VADA on the contralateral side. The first ruptured VADA involved the posterior inferior cerebellar artery, which was successfully treated by endovascular internal trapping using a stent. A follow-up study at 3 months revealed a de novo VADA on the contralateral side. The second VADA was successfully embolized using coils while normal arterial flow in the vertebral artery was preserved using a stent...
May 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28489237/medially-displaced-common-and-internal-carotid-arteries-presenting-as-a-pulsatile-mass-clinicoradiologic-analysis-of-62-cases
#7
Ilker Burak Arslan, Yildiz Arslan, Erhan Demirhan, Selahattin Genc, Yeliz Pekcevik, Levent Altin, Zahide Yilmaz, Ibrahim Cukurova
We conducted a prospective study to analyze the medially displaced courses of the common carotid artery (CCA) and the cervical segment of the internal carotid artery (ICA) in patients who were diagnosed with a pulsatile mass on nasopharyngolaryngoscopy and by clinicoradiologic findings. Our study group was made up of 62 patients-40 women and 22 men, aged 30 to 88 years (mean: 63.7)-who presented with a submucosal pseudomass or a bulging mass on the pharyngeal wall with obvious pulsation. For comparison purposes, we recruited a control group of 62 consecutively presenting patients who had been admitted to our Neurology Department with acute severe headache and who had undergone CT angiography based on a suspicion of an aneurysm or a vertebral or carotid artery dissection...
April 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28484132/unilateral-trans-cerebellomedullary-fissure-approach-for-occipital-artery-to-posterior-inferior-cerebellar-artery-bypass-during-aneurysmal-surgery
#8
Hiroshi Abe, Koichi Miki, Hiromasa Kobayashi, Toshiyasu Ogata, Mitsutoshi Iwaasa, Toshio Matsushima, Tooru Inoue
Occipital artery (OA) to the posterior inferior cerebellar artery (PICA) bypass is indispensable for the management of complex aneurysms of the PICA that cannot be reconstructed with surgical clipping or coil embolization. Although OA-PICA bypass is a comparatively standard procedure, the bypass is difficult to perform in some cases because of the location and situation of the PICA. We describe the usefulness of the unilateral trans-cerebellomedullary fissure (CMF) approach for OA-PICA bypass. Thirty patients with aneurysms in the vertebral artery (VA) or PICA were treated using OA-PICA bypasses between 2010 and 2015...
May 9, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28471896/a-case-report-of-transient-cortical-blindness-after-angiography
#9
Chih Yen Chen, Chi Jen Chen, Ying Chi Tseng
INTRODUCTION: Transient cortical blindness (TCB) is a rare complication after angiography and is proposed to be related to contrast extravasation. We present the first case of TCB after angiography that was evaluated using serial arterial spin-labeling magnetic resonance perfusion (ASLMRP) and susceptibility-weighted imaging (SWI). CASE REPORT: A 65-year-old woman with dyslipidemia who had been treated for left vertebral artery dissection 3 months previously presented with dizziness and right hemiparesis...
May 2017: Neurologist
https://www.readbyqxmd.com/read/28461834/vertebral-artery-dissection-a-contemporary-perspective
#10
Tiu Cristina, Terecoasa Elena, Grecu Nicolae, Nistor Raluca, Frangu Smaranda, Antochi Florina
Arterial dissections are among the most frequent causes of stroke in young adults. Usually they are associated with trauma, but as the modern imaging tools are evolving, more dissections are being diagnosed and more etiologies are being described. Vertebral artery dissections (VADs) have the distinct particularity that they can cause ischemic stroke (in the brainstem, cerebellum or even the spinal cord), but also subarachnoid hemorrhage, when the dissection occurs in the intracranial segment of the vertebral artery...
June 2016: Mædica
https://www.readbyqxmd.com/read/28458824/vertebral-artery-dissection-following-a-posterior-cervical-foraminotomy
#11
Aniruddha A Sheth, Stephen Honeybul
Vertebral artery dissection following a posterior cervical foraminotomy with rhizolysis of the subaxial spine has not been described before. A 46-year-old lady underwent the procedure for a left C6 radiculopathy with a focal disc herniation with no intraoperative complications. Seven hours post-operatively, she developed a right homonymous hemianopia, thalamic dysphasia, gait and memory impairment. Imaging demonstrated an occlusion to the left vertebral artery from C7/T1 to C4 with a dissection flap noted at the inferior margin...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28445914/clinical-significance-of-intraluminal-contrast-enhancement-in-patients-with-spontaneous-cervical-artery-dissection-a%C3%A2-black-blood-mri-study
#12
Eva Coppenrath, Olga Lenz, Nora Sommer, Nina Lummel, Jennifer Linn, Karla Treitl, Fabian Bamberg, Maximilian Reiser, Thomas Pfefferkorn, Tobias Saam
Purpose Recent studies have suggested that intraluminal thrombi show contrast enhancement on carotid black-blood T1w MRI. The aim of this study was to evaluate the significance of intraluminal contrast enhancement (iCE) regarding symptom status in patients with spontaneous cervical artery dissection (sCAD). Methods 33 consecutive patients (19 men) with sCAD received a brain MRI (DIFF, T2w, T2*w, FLAIR) and a multi-sequence 3T-MRI with fat-saturated high-resolution black-blood T1w-sequences pre- and post-contrast, contrast-enhanced MR angiography and TOF images of carotid and vertebral arteries...
April 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28438894/flow-diverter-treatment-of-intracranial-vertebral-artery-dissecting-pseudoaneurysms
#13
REVIEW
Russell Cerejo, Mark Bain, Nina Moore, Julian Hardman, Andrew Bauer, M Shazam Hussain, Thomas Masaryk, Peter Rasmussen, Gabor Toth
INTRODUCTION: Intracranial vertebral dissecting pseudoaneurysms are a rare, but increasingly recognized, cause of subarachnoid hemorrhage and ischemic stroke. The risks of aneurysm re-rupture and associated morbidity are high. The use of flow diverter stents for the treatment of these aneurysms has not been well studied. OBJECTIVE: To report our data and provide a summarized review of literature using flow diverter stents for the treatment of intracranial vertebral artery dissecting pseudoaneurysms...
April 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28402517/posterior-inferior-cerebellar-artery-vertebral-artery-subarachnoid-hemorrhage-a-comparison-of-saccular-vs-dissecting-aneurysms
#14
Mitchell T Foster, Amit Herwadkar, Hiren C Patel
BACKGROUND: Two distinct categories of aneurysms are described in relation to the posterior inferior cerebellar artery (PICA) and vertebral artery (VA): saccular (SA) and dissecting (DA) types. This distinction is often unrecognized because abnormalities here are uncommon and most studies are small. OBJECTIVE: To determine if there are any differences in the clinical presentation, in-hospital course, or outcomes in patients with DA vs SA of the PICA or VA. METHODS: Thirty-eight patients with a VA or PICA aneurysm were identified from a departmental subarachnoid hemorrhage database and categorized into DA or SA types...
April 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28396950/giant-cell-tumor-of-the-thoracic-spine-completely-removed-by-total-spondylectomy-after-neoadjuvant-denosumab-therapy
#15
Noritaka Yonezawa, Hideki Murakami, Satoshi Kato, Akihiko Takeuchi, Hiroyuki Tsuchiya
PURPOSE: Denosumab, a novel monoclonal antibody that targets the receptor activator of nuclear factor-κB (RANK) ligand (RANKL), has recently been used to treat patients with giant cell tumor of bone (GCTB). However, few reports have described the clinical results of denosumab therapy for spinal GCTB and evaluated treatment efficacy with respect to the entirety of the resected vertebra after denosumab therapy. METHODS: We present the case of a 51-year-old man with T12 GCTB that was completely removed by a total spondylectomy following 10 courses of neoadjuvant denosumab therapy...
April 10, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28382613/reduced-internal-carotid-artery-flow-in-color-coded-carotid-duplex-sonography
#16
Fu-Yi Yang, Po-Ren Hsu, Shinn-Kuang Lin
PURPOSE: Reduced flow in the internal carotid artery (ICA) is related to cerebral ischemia. We established a classification of reduced ICA flow through color-coded carotid duplex (CCD) sonography. METHODS: We retrospectively reviewed 25,000 CCD images in sonography laboratory. RESULTS: Reduced ICA flow [flow volume (FV) less than 100 mL/min] was found in 1.2% of all studies, and 270 patients were enrolled. We included 8% patients with lesions proximal to the ICA in Group A, 27% with lesions at the proximal ICA in Group B, 49% with lesions distal to the visible ICA in Group C, and 16% with unknown causes in Group D...
December 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/28362967/anticoagulation-vs-antiplatelet-treatment-in-patients-with-carotid-and-vertebral-artery-dissection-a-study-of-370-patients-and-literature-review
#17
Badih Daou, Christine Hammer, Nikolaos Mouchtouris, Robert M Starke, Sravanthi Koduri, Steven Yang, Pascal Jabbour, Robert Rosenwasser, Stavropoula Tjoumakaris
BACKGROUND: Dissection of the carotid and vertebral arteries is an important cause of stroke in young patients. OBJECTIVE: The objective of this study is to compare antithrombotic treatments in patients with carotid and vertebral dissections. METHODS: Three hundred seventy patients with carotid and vertebral artery dissections were included. Univariate and multivariate analyses were conducted to analyze the association between treatment and new or recurrent events and clinical outcome...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28355771/-progress-of-problems-related-to-the-reconstruction-of-aortic-arch-in-acute-type-a-aortic-dissection
#18
N N Liu, L Z Sun
Aortic arch reconstruction is one of the most challenging operations in aortic surgery. Anatomical abnormalities of the aortic arch, including bovine aortic arch, aberrant right subclavian artery, and single vertebral artery have direct impact on the choice of surgical procedures and methods of brain protection.The risk of aortic arch reconstruction and the difficulty of operation, it is possible to avoid the injury of patients by strictly grasping the indication of operation. Intraoperative arterial cannulation and brain protection strategies are directly related to the success of the operation...
April 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28340595/the-risk-associated-with-spinal-manipulation-an-overview-of-reviews
#19
Sabrina Mai Nielsen, Simon Tarp, Robin Christensen, Henning Bliddal, Louise Klokker, Marius Henriksen
BACKGROUND: Spinal manipulative therapy (SMT) is a widely used manual treatment, but many reviews exist with conflicting conclusions about the safety of SMT. We performed an overview of reviews to elucidate and quantify the risk of serious adverse events (SAEs) associated with SMT. METHODS: We searched five electronic databases from inception to December 8, 2015. We included reviews on any type of studies, patients, and SMT technique. Our primary outcome was SAEs...
March 24, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28328828/the-advantage-of-ultrasonography-in-the-diagnosis-of-extracranial-vertebral-artery-dissection-two-case-reports
#20
Lijuan Yang, Haitao Ran
RATIONALE: With the rapid development in technology of vascular imaging, the detection of artery dissection is also gradually increasing. Cervical artery dissection, including carotid artery and vertebral artery dissection, is associated in at least 20% of young adult patients with stroke. So, the diagnosis of cervical artery has become a great challenge. PATIENT CONCERNS: We reported 2 patients who complained of dizziness and pain, the findings of US confirmed the presence of extracranial vertebral artery dissection...
March 2017: Medicine (Baltimore)
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