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vertebral artery stenosis

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https://www.readbyqxmd.com/read/29651586/revascularization-techniques-for-acute-basilar-artery-occlusion-technical-considerations-and-outcome-in-the-setting-of-severe-posterior-circulation-steno-occlusive-disease
#1
Eberhard Siebert, Georg Bohner, Sarah Zweynert, Volker Maus, Anastasios Mpotsaris, Thomas Liebig, Christoph Kabbasch
PURPOSE: To describe the clinical and radiological characteristics, frequency, technical aspects and outcome of endovascular treatment of acute basilar artery occlusion (ABO) in the setting of vertebrobasilar steno-occlusive disease. METHODS: Retrospective analysis of databases of two universitary stroke centers including all consecutive patients from January 2013 until May 2017 undergoing thrombectomy for a) acute stroke due to basilar artery occlusion and either significant basilar artery stenosis or vertebral artery stenosis/occlusion as well as b) presumed embolic basilar artery occlusions...
April 12, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29616518/coronary-artery-bypass-surgery-in-patients-with-chronic-brain-hypoperfusion
#2
Hajime Imura, Yuji Maruyama, Kenichiro Takahashi, Dai Nishina, Takashi Nitta
BACKGROUND: Cerebrovascular disease (CVD) is a risk factor of stroke and cerebral hypoperfusion is one of the underlying mechanisms. We hypothesized that coronary artery bypass grafting (CABG) can be performed at an acceptable risk for such patients without concomitant surgery for CVD. METHODS: Carotid echo was carried out for 538 consecutive patients undergoing isolated CABG between 2005 and 2016. Magnetic resonance image/angiography (MRI/A) for neck and brain was performed for 288 patients (stenosis≥50% in echo were basically included)...
April 3, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29600003/endovascular-revascularisation-of-acute-tandem-vertebrobasilar-artery-occlusion-seven-case-series-with-literature-reviews
#3
Haihua Yang, Ning Ma, Shiyong Zhang, Xiaochuan Huo, Feng Gao, Xuan Sun, Dapeng Mo, Zhongrong Miao
Background: The outcome of acute ischaemic stroke due to tandem vertebrobasilar artery occlusion was poor. Endovascular revascularisation may be a positive approach for acute basilar artery occlusion combined with vertebral ostium stenosis or occlusion. We reported seven patients with acute vertebrobasilar tandem occlusion by using angioplasty or stenting for proximal lesion and thrombectomy for distal occlusion. Materials and methods: Consecutive patients with acute tandem vertebrobasilar artery occlusion at two centres were included in this study...
March 2018: Stroke and Vascular Neurology
https://www.readbyqxmd.com/read/29571761/a-new-technique-for-the-assessment-of-cerebral-vasodilatory-capacity-as-part-of-catheter-based-cerebral-angiography
#4
Adnan I Qureshi, Muhammad A Saleem, Nishath Naseem, Shawn S Wallery
BACKGROUND: Previous studies have demonstrated the value of cerebral vasodilatory capacity assessment for risk stratification in patients with extracranial arterial stenosis or occlusion. We describe a new method that assesses cerebral vasodilatory capacity as part of catheter-based cerebral angiography. METHODS: We assessed regional cerebral blood volume (rCBV) in the arterial distribution of interest using a controlled contrast injection through a diagnostic catheter placed in the common carotid or the subclavian artery...
March 20, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29555729/catheter-exchange-technique-for-the-wingspan-stent-technical-note
#5
W S Lesley, R Rangaswamy
BACKGROUND AND PURPOSE: The only Food and Drug Administration-approved implant for managing intracranial stenosis is the Wingspan stent. Modification of the standard Wingspan stent delivery procedure has not been previously reported. MATERIAL AND METHODS: Retrospective, single-patient, technical report. RESULTS: Following uneventful balloon angioplasty, a symptomatic intracranial vertebral artery stenosis was inaccessible to Wingspan stent delivery using standard procedural protocol because of poor proximal guide catheter purchase...
April 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29534984/fibromuscular-dysplasia-contemporary-concepts-and-future-directions
#6
REVIEW
Nupoor Narula, Daniella Kadian-Dodov, Jeffrey W Olin
Fibromuscular dyplasia (FMD) is an under-recognized non-atherosclerotic, non-inflammatory arteriopathy that occurs most commonly in middle-aged women, but may affect individuals of all age groups. FMD may result in stenosis, aneurysm, dissection, occlusion, or arterial tortuosity. Recently published data demonstrated a genetic association of FMD with a variant in the phosphatase and actin regulator 1 gene (PHACTR1), substantiating that the pathogenesis of this condition has genetic contribution. The renal and extracranial carotid and vertebral arteries are most often involved, although any arterial bed may be affected...
March 10, 2018: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29529969/subclavian-steal-syndrome-in-a-hemodialysis-patient-after-percutaneous-transluminal-angioplasty-of-arteriovenous-access
#7
Yoko Kaneko, Takamoto Yanagawa, Yoshinori Taru, Sonoko Hayashi, Hong Zhang, Tomoki Tsukahara, Tsuneaki Matsunaga, Takashi Ishizu
INTRODUCTION: We describe a hemodialysis patient who developed subclavian steal syndrome via an arteriovenous fistula after percutaneous transluminal angioplasty. CASE DESCRIPTION: A 55-year-old female with end-stage renal failure due to polycystic kidney disease had been treated with hemodialysis for 10 years. Because of an autologous arteriovenous fistula stenosis, percutaneous transluminal angioplasty was performed. After successful treatment with percutaneous transluminal angioplasty, the patient developed dizziness...
March 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29503019/the-assessment-of-diagnostic-accuracy-for-basilar-artery-stenosis-by-transcranial-color-coded-sonography
#8
Jie Yang, Yang Hua, Xiang Li, Mingjie Gao, Qiuping Li, Beibei Liu, Liqun Jiao
This study aimed to determine the optimal criteria for evaluating basilar artery stenosis (BAS) by transcranial color-coded sonography (TCCS). A total of 403 cases with both TCCS and digital subtraction angiography (DSA) were enrolled. Peak systolic velocity (PSV), end diastolic velocity (EDV) and mean flow velocity (MFV) of the basilar artery (BA), intracranial vertebral artery (IVA) and posterior cerebral artery (PCA) were measured. The ratios PSVBA /PSVIVA and PSVBA /PSVPCA were calculated. With DSA as the reference, the optimal criteria for grading BAS were determined by receiver operating characteristic analysis...
March 1, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29497851/resolution-of-traumatic-bilateral-vertebral-artery-injury
#9
REVIEW
Yutaka Igarashi, Takahiro Kanaya, Shoji Yokobori, Takeshi Tsukamoto, Hiroyuki Yokota
PURPOSE: Cerebrovascular ischaemia is a rare but serious complication of damage to the carotid or vertebral arteries in the neck caused by blunt injury to the neck. Screening for blunt cerebrovascular injury should be performed in patients with certain signs or symptoms and risk factors. We described a case of traumatic bilateral vertebral artery injury (VAI) including unilateral vertebral arterial occlusion that resolved 3 months post-injury with antiplatelet and direct oral anticoagulant therapy...
March 1, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29496077/improved-depiction-of-atherosclerotic-carotid-artery-stenosis-in-virtual-monoenergetic-reconstructions-of-venous-phase-dual-layer-computed-tomography-in-comparison-to-polyenergetic-reconstructions
#10
David Zopfs, Simon Lennartz, Kai Laukamp, Nils Große Hokamp, Anastasios Mpotsaris, David Maintz, Jan Borggrefe, Victor Neuhaus
OBJECTIVES: To compare virtual monoenergetic images (VMI) reconstructed from venous phase Dual-Layer CT (DLCT) with polyenergetic images (PI) of DLCT-Angiography (DLCT-A) regarding vessel contrast and image quality especially in sight to atherosclerotic carotid artery stenosis. METHODS & MATERIALS: 25 DLCT-A and 55 venous phase DLCT were analyzed in this retrospective study. For objective analysis PI and VMI (40-120 keV) were assessed comparing attenuation, standard deviation, signal-/contrast- to noise ratios (SNR, CNR) in the common carotid artery (CCA), vertebral artery, sternocleidomastoid muscle and air...
March 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29465576/delayed-epidural-pseudoaneurysm-following-cervical-laminectomy-and-instrumentation-in-a-patient-with-canal-stenosis-secondary-to-skeletal-fluorosis-a-case-report
#11
Yinze Diao, Yu Sun, Shaobo Wang, Fengshan Zhang, Shengfa Pan, Zhongjun Liu
RATIONALE: The typical intraoperative presentation of vertebral artery injury (VAI) usually involves profuse bleeding and requires immediate treatment. However, an occult VAI may occur intraoperatively and result in delayed life-threatening epidural pseudoaneurysm several days postoperatively. PATIENT CONCERNS: A 21-year-old man with compressive cervical myelopathy resulting from canal stenosis of skeletal fluorosis underwent decompression of C1 to C7 and instrumentation from C2 to C7...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29454728/first-report-of-drug-coated-balloon-angioplasty-for-vertebral-artery-origin-stenosis
#12
YaBing Wang, Yan Ma, Peng Gao, Yanfei Chen, Bin Yang, Liqun Jiao
No abstract text is available yet for this article.
February 9, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29445438/vertebral-artery-origin-stent-placement-using-the-dual-lumen-qureshi-jiao-guidecatheter
#13
Adnan I Qureshi, Yabing Wang, Mohammad Rauf Afzal, Liqun Jiao
Objective: We report the first experience with a new dual lumen guide catheter with lumen A with curved tip designed for delivery of stent and angioplasty catheters and lumen B with side exit for coaxial placement of stiff 0.014 inch wire. Methods: We prospectively determined technical success, intended procedure (stent delivery at target lesion and a final residual stenosis <30%) completed without a need for a different catheter, and technical ease, intended procedure completed without ≥3 unsuccessful attempts in patients with symptomatic vertebral artery origin stenosis...
December 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/29421416/primary-stenting-of-right-sided-subclavian-artery-stenosis-presenting-as-subclavian-steal-syndrome-report-of-three-cases-and-literature-review
#14
Georgios Sahsamanis, Georgios Vourliotakis, Konstantinos Pirgakis, Anastasios Lekkas, Ioannis Kantounakis, Alexandra Terzoglou, Vasileios Tzilalis
BACKGROUND: Right-sided subclavian artery stenosis is a rare cerebrovascular disease involving the upper extremities. Considering an endovascular approach for its management requires increased endovascular and catheterization skills, when compared to the left side, due to the close approximation of the right subclavian artery origin, vertebral and common carotid arteries. METHODS: Three patients suffering from proximal right sided subclavian artery stenosis were treated in our center through primary stenting...
February 5, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29403245/machined-cervical-interfacet-allograft-spacers-for-the-management-of-atlantoaxial-instability
#15
Mazda K Turel, Mena G Kerolus, Vincent C Traynelis
Background: The use of cervical interfacet spacers (CISs) to augment stability and provide solid arthrodesis at the atlantoaxial joint has not been studied in detail. The aim of this work is to report the outcomes with the use of machined allograft CISs at C1-2. Methods: A retrospective review of 19 patients who underwent an atlantoaxial fusion with the use of CISs was performed. All patients had instability documented with flexion and extension lateral radiographs...
October 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29402062/basilar-artery-plaque-and-pontine-infarction-location-and-vascular-geometry
#16
Bum Joon Kim, Kyung Mi Lee, Hyun Young Kim, Young Seo Kim, Seong-Ho Koh, Sung Hyuk Heo, Dae-Il Chang
BACKGROUND AND PURPOSE: Subclinical atherosclerotic plaques are common in patients with pontine infarctions (PIs) but without basilar artery (BA) stenosis. We hypothesized that BA plaque locations may differ by PI type and vertical location as well as vertebrobasilar artery geometry. METHODS: Ninety-six patients with PI but without BA stenosis on magnetic resonance imaging (MRI) and magnetic resonance angiography were enrolled. PIs were classified by type (paramedian, deep, or lateral) and vertical location (rostral, middle, or caudal)...
January 2018: Journal of Stroke
https://www.readbyqxmd.com/read/29329733/association-between-leukoaraiosis-and-cerebral-blood-flow-territory-alteration-in-asymptomatic-internal-carotid-artery-stenosis
#17
Y-F Chen, Y-S Kuo, W-C Wu, S-C Tang, S-F Jiang
AIM: To test the hypothesis that leukoaraiosis (also known as white matter lesion) is associated with cerebral blood flow territory change as revealed by territorial arterial spin-labeling (TASL) magnetic resonance imaging (MRI) in patients with asymptomatic internal carotid artery stenosis (aICAS). MATERIALS AND METHODS: The institutional review board approved this study. Thirty-three patients with aICAS were included prospectively and divided into high-grade (ultrasonographic stenosis ≥70%, n=17) and low-grade (n=16) groups; 16 healthy subjects were also included...
May 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29306594/vertebrobasilar-artery-stroke-as-the-heralding-sign-of-systemic-lupus-erythematosus
#18
Reza Mohammadian, Ali Tarighatnia, Mehran Naghibi, Evin Koleini, Nader D Nader
Cerebral ischemia because of vertebrobasilar insufficiency (VBI) rarely presents as an initial sign within the systemic lupus erythematosus (SLE) population, and there are very few case reports supporting this manifestation. This report details 3 different patients with SLE who experienced VBI as an initial manifestation. Patient 1 was a 24-year-old female who developed a bilateral pontine lesion as a consequence of basilar artery stenosis. Patient 2 was a 34-year-old male with an acute ischemic lesion on the right side of his cerebellum and pons because of significant stenosis in the distal segment of the right vertebral artery...
May 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29302189/the-effect-of-demographic-features-on-aortic-arch-anatomy-and-its-role-in-the-etiology-of-cerebrovascular-disease
#19
Yılmaz İnanç, Yusuf İnanç, Halil Ay
Purpose: The aim of this study was to retrospectively evaluate the distribution of aortic arches, the relationship with demographic characteristics, and the results of carotid and vertebral artery stenting procedures in patients diagnosed with cerebrovascular disease through the intra-arterial digital subtraction angiography (DSA) technique. Methods: A retrospective examination was performed on 288 patients diagnosed with cerebrovascular disease, who underwent DSA in the Department of Neurology of Gaziantep University Medical Faculty and Kahramanmaraş¸ Sütçü Imam University Medical Faculty...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29275015/an-unusual-cause-of-ischemia-after-coronary-bypass-grafting
#20
Rania Hammami, Salma Charfeddine, Nizar Elleuch, Hela Fourati, Leila Abid, Samir Kammoun
Coronary subclavian steal syndrome is an uncommon cause of ischemia recurrence after coronary artery bypass grafting. Endovascular treatment of subclavian artery stenosis or occlusion is increasingly common and appears to offer a safe and effective alternative to surgical revascularization. We report a case of recurrent angina after coronary artery bypass grafting for critical subclavian artery stenosis. The anomalous origin of the vertebral artery from the aortic arch was an indication for endovascular treatment...
January 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
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