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vertebral artery stenosis

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https://www.readbyqxmd.com/read/28508239/double-crush-syndrome-caused-by-cervical-spondylosis-and-vertebral-artery-loop
#1
Young Joon Rho, Woo Jin Choe
PURPOSE: The purpose of this article is to report a successful treatment experience in a rare case of simultaneous cervical nerve root compression by spondylotic cervical foraminal stenosis and a vertebral artery loop. METHODS: 51-year-old man presented with a 4-year history of left-sided cervical pain radiating to the left shoulder with progressive exacerbation of weakness on left shoulder girdle muscles for 7 months. The patient had no history of trauma. The patient's CT and MRI revealed impingement of the left C6 cervical nerve root by a tortuous vertebral artery loop and also by narrowed left C5-6 cervical foramen that had undergone spondylotic changes...
May 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28483619/bilateral-internal-carotid-arteries-occlusion-external-carotid-arteries-stenosis-and-vertebral-arteries-kinking-may-it-be-asymptomatic
#2
Nikola Fatic, Usman Jaffer, Saicic Ivana, Globarevic-Vukcevic Gordana, Dragan Markovic, Dusan Kostic, Lazar Davidovic
The clinical spectrum of internal carotid artery occlusion ranges from being a completely asymptomatic occlusion to a devastating stroke or death. The prevalence of asymptomatic internal carotid artery occlusion is unknown, particularly for bilateral occlusion. The distal branches of the external carotid artery anastomose with distal branches of the internal carotid artery providing important sources of collateral circulation to the brain. Stenosis of the external carotid artery with ipsilateral/bilateral internal occlusion may result in ischemic sequelae...
May 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28458702/study-of-the-involved-vascular-territories-in-patients-with-ischemic-stroke-in-kerman-iran
#3
Hossein Ali Ebrahimi, Mohammad Saba, Behnaz Sedighi, Hoda Kamali
BACKGROUND: The races show different cerebrovascular involvements, for example, the involvement of intracranial arteries are higher among Asians than Caucasians. The aim of this study was to investigate the cerebrovascular stenosis pattern by computed tomography angiography (CTA), which is unprecedented in Iran. METHODS: In this study, patients with brain stroke (thrombosis), confirmed by CT scanning and cardiac assessments, who referred to Shafa Hospital in Kerman, Iran, underwent brain and cervical arteries CT angiography to assess involved cerebrovascular territories and also its risk factors from June 2012 to June 2013...
September 2016: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/28424448/case-images-treatment-of-thrombotic-subclavian-artery-stenosis-involving-vertebral-artery-ostium-with-maximum-protection
#4
Ertan Vuruşkan, Erhan Saraçoğlu, Mustafa Polat, İrfan Veysel Düzen
No abstract text is available yet for this article.
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28384916/successful-angioplasty-of-left-vertebral-artery-and-right-subclavian-artery-via-retrograde-approach
#5
Mohammad Hasan Namazi, Isa Khaheshi, Amir Momenizadeh, Amir Dousti, Mohammadreza Naderian
We describe a 77-year-old male who had right upper limb ischemic symptoms and history of unsuccessful right subclavian artery angioplasty. According to ultrasound findings, upper limb angiography was performed which confirmed stenosis of the left vertebral and right subclavian arteries. Percutaneous angioplasty and stenting of left vertebral and right subclavian arteries were performed in two separate sessions. Retrograde approach was scheduled for right subclavian artery angioplasty which is challenging due to potential risks to adjacent vertebral artery...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28382613/reduced-internal-carotid-artery-flow-in-color-coded-carotid-duplex-sonography
#6
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/28379549/asymptomatic-extracranial-vertebral-artery-disease-in-patients-with-internal-carotid-artery-stenosis
#7
Adnan I Qureshi, Saqib A Chaudhry, Henning Eckstein, Olav Jansen, Peter A Ringleb
BACKGROUND: Extracranial vertebral artery disease is seen in patients with internal carotid artery stenosis, although the clinical significance is not well understood. OBJECTIVE: To determine the prevalence and natural history of extracranial vertebral artery disease in patients with recently symptomatic internal carotid artery stenosis. METHODS: We analyzed data collected for patients with recently symptomatic internal carotid artery stenosis in the Stent-Protected Angioplasty vs Carotid Endarterectomy trial...
March 30, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28372948/acute-hearing-loss-caused-by-decreasing-anterior-inferior-cerebellar-arterial-perfusion-in-a-patient-with-vertebral-artery-stenosis
#8
Rintaro Fukuda, Nobukazu Miyamoto, Arisa Hayashida, Yuji Ueno, Kazuo Yamashiro, Ryota Tanaka, Nobutaka Hattori
We report a case of bilateral hearing loss caused by decreased vascular flow in the anterior inferior cerebellar artery (AICA) territory. A 74-year-old man who experienced right hearing loss 5 months ago presented with bilateral deafness and right cerebellar ataxia; however, no ischemic lesion was detected in the bilateral AICA area. After stroke treatment, hearing loss was improved. One month later, we obtained blood flow improvement in the left AICA territory on single-photon-emission computed tomography and vertebral artery stenosis on magnetic resonance angiography...
March 31, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28347159/stenotic-lesion-level-did-not-affect-outcomes-of-carotid-endarterectomy
#9
Masamitsu Suhara, Katsuyuki Hoshina, Atsushi Akai, Toshihiko Isaji, Daisuke Akagi, Kota Yamamoto, Takuya Miyahara, Toshiaki Watanabe
Background Carotid endarterectomy is the established treatment for carotid artery stenosis, and remains the primary surgical option due to its superior outcomes compared to carotid arterial stenting. However, Japanese patients are known to have unfavorable anatomical conditions for carotid endarterectomy, with a relatively higher level of the carotid artery bifurcation than in the Western population. We investigated the outcomes of carotid endarterectomy in our institute and evaluated the procedural quality by comparing patients based on higher or lower lesion levels...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28329264/bow-hunter-syndrome-elicited-by-vertebral-arterial-occlusion-after-total-arch-replacement
#10
Hiroto Kitahara, Tomohiro Takeda, Kazumi Akasaka, Hiroyuki Kamiya
An 83-year-old man with arch aneurysm underwent total arch replacement with frozen elephant trunk and extra-anatomical left subclavian artery bypass. One year later, he felt dizziness associated with head rotation. The hypoplastic left vertebral artery was occluded by a thrombus extending from the left subclavian artery ligation site, and the dynamic stenosis of right vertebral artery by head rotation induced dizziness. He was diagnosed with Bow Hunter syndrome. Vertebral artery hypoplasia represents a possible cause of this rare complication...
January 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28328808/vertebrobasilar-system-computed-tomographic-angiography-in-central-vertigo
#11
Lale Paşaoğlu
The incidence of vertigo in the population is 20% to 30% and one-fourth of the cases are related to central causes. The aim of this study was to evaluate computed tomography angiography (CTA) findings of the vertebrobasilar system in central vertigo without stroke.CTA and magnetic resonance images of patients with vertigo were retrospectively evaluated. One hundred twenty-nine patients suspected of having central vertigo according to history, physical examination, and otological and neurological tests without signs of infarction on diffusion-weighted magnetic resonance imaging were included in the study...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28321414/medical-and-interventional-therapy-for-spontaneous-vertebral-artery-dissection-in-the-craniocervical-segment
#12
Guiyun Zhang, Zuoquan Chen
Background and Purpose. Spontaneous vertebral artery dissection (SVAD) is an important reason for posterior-circulation-ischemic stroke in the young and middle-aged population. Although some previous reports reveal a favorable outcome with conservative therapy, it is still controversial in the treatment of SVAD in some specific patients. Herein, we present our 10 years of clinical experience for SVAD at this location. Material and Methods. 20 patients with 20 SVADs in V2 and V3 segments were retrospectively studied...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28304206/restenosis-after-stenting-in-symptomatic-vertebral-arterial-orifice-disease-and-considerations-for-better-outcome
#13
Jun Young Chang, Hyun Park, Oki Kwon, Moon-Ku Han
We have performed stenting in 11 patients with symptomatic vertebral arterial orifice stenosis refractory to medical treatment or impairment in anterior circulation. Three of the 11 patients experienced asymptomatic severe in-stent restenosis or occlusion. Bare metal stents were used in those three patients, two of whom received revascularization therapy. Development of sufficient cervical collateral channels reconstituting the distal vertebral artery was the common feature in patients with asymptomatic in-stent restenosis...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28300680/evaluation-by-magnetic-resonance-imaging-of-silent-brain-infarcts-in-preoperative-and-postoperative-asymptomatic-carotid-surgery
#14
Remy Pascot, Anne Daoudal, Alain Cardon, Gilles Godet, Antoine Lucas, Elodie Clochard, Jean-Yves Gauvrit, Yann Le Teurnier, Adrien Kaladji
BACKGROUND: To report the prevalence of silent brain infarcts (SBI) at magnetic resonance imaging (MRI) before and after surgery for asymptomatic high grade carotid stenosis. METHODS: This is a single center retrospective observational study. Asymptomatic patients who underwent carotid endarterectomy between October 2012 and October 2014 were included. The preoperative assessment included a Doppler and a computed tomographic (CT) scan dating less than 3 months...
March 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28300678/magnetic-resonance-imaging-of-internal-jugular-veins-in-multiple-sclerosis-inter-observer-agreement-and-comparison-with-doppler-ultrasound-examination
#15
S J Laukontaus, J Pekkola, J Numminen, T Kagayama, M Lepäntalo, M Färkkilä, S Atula, P Tienari, M Venermo
OBJECTIVES: Doppler ultrasound (US) has been widely used to evaluate the cervical venous system of multiple sclerosis (MS) patients according to the hypothesis of chronic cerebrospinal venous insufficiency (CCSVI) with contradictory results. Venous anatomy and pathology can be examined with less operator-dependent magnetic resonance imaging (MRI). DESIGN: To assess the inter-observer agreement in measuring internal jugular vein (IJV) cross-sectional area (CSA) in MR-images and to explore the agreement between US and MRI in the detection of calibres of ≤ 0...
March 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28284683/endovascular-treatment-of-vertebral-artery-stenosis
#16
REVIEW
J Stephen Jenkins, Merrill Stewart
Endovascular treatment of vertebral artery stenosis (VAS) is a safe and effective technique for treating symptoms caused by posterior circulation ischemia with high technical and clinical success rates, low complication rates and durable long-term results. Variable restenosis rates have been reported in the literature with small improvements demonstrated using drug eluting stents. Although there is insufficient evidence from randomized trials to demonstrate superiority of endovascular compared to optimal medical therapy for the treatment of this disease, patients who fail medical therapy should be considered for endovascular stenting for symptomatic VAS...
March 8, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28280639/delayed-stroke-following-blunt-neck-trauma-a-case-illustration-with-recommendations-for-diagnosis-and-treatment
#17
Best Anyama, Daniela Treitl, Jeffery Wessell, Rachele Solomon, Andrew A Rosenthal
Blunt cerebrovascular injury (BCVI) to the carotid artery is a relatively rare injury that is difficult to identify even with imaging. Any symptoms or neurological deficits following blunt neck injury mandate evaluation and consideration of BCVI. In an effort to highlight this issue, we report the case of a 31-year-old male patient who presented with left-sided weakness consistent with transient ischemic attack (TIA) and concussion. The patient's symptoms occurred within 24 hours of a blunt neck injury sustained by a knee strike during a basketball game...
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/28273361/transcatheter-aortic-valve-implantation-improves-carotid-and-vertebral-arterial-blood-flow-in-patients-with-severe-aortic-stenosis-practical-role-of-orthostatic-stress-test
#18
Pawel Kleczyński, Pawel Petkow Dimitrow, Artur Dziewierz, Andrzej Surdacki, Dariusz Dudek
BACKGROUND: There are no data on the impact of transcatheter aortic valve implantation (TAVI) on carotid and vertebral arterial blood flow. Our aim was to assess the effects of the orthostatic stress test on carotid and vertebral artery blood flow in patients with severe aortic stenosis (AS) undergoing TAVI. HYPOTHESIS: TAVI may have beneficial effect on carotid and vertebral artery flow in patients with severe aortic stenosis. METHODS: Thirty carefully selected patients with severe AS undergoing TAVI were enrolled...
March 8, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28251330/oculo-auriculo-vertebral-spectrum-going-beyond-the-first-and-second-pharyngeal-arch-involvement
#19
Brotto Davide, Manara Renzo, Ghiselli Sara, Lovo Elisa, Mardari Rodica, Toldo Irene, Castiglione Alessandro, Schifano Giovanni, Stritoni Valentina, Bovo Roberto, Trevisi Patrizia, Martini Alessandro
INTRODUCTION: Intracranial vascular, bone, and brain abnormalities might be observed in oculo-auriculo-vertebral spectrum (OAVS) patients even though these structures do not derive embryologically from the first and second pharyngeal arches. This neuroimaging study investigated their type, frequency and phenotype correlations among OAVS patients. METHODS: Thirty-five OAVS patients (mean-age 4.8 ± 6.0 years; age range 0.3-30, 14 females) underwent head CT (all patients) and brain MRI (32 patients); 19 patients had a more severe phenotype (Goldenhar syndrome)...
March 2017: Neuroradiology
https://www.readbyqxmd.com/read/28222983/validation-of-subclavian-duplex-velocity-criteria-to-grade-severity-of-subclavian-artery-stenosis
#20
Albeir Y Mousa, Ramez Morkous, Mike Broce, Michael Yacoub, Andrew Sticco, Ravi Viradia, Mark C Bates, Ali F AbuRahma
BACKGROUND: Validation of subclavian duplex ultrasound velocity criteria (SDUS VC) to grade the severity of subclavian artery stenosis has not been established or systematically studied. Currently, there is a paucity of published literature and lack of practitioner consensus for how subclavian duplex velocity findings should be interpreted in patients with subclavian artery stenosis. OBJECTIVE: The objective of the present study was to validate SDUS measurements using subclavian conventional or computed tomography angiogram (subclavian angiogram [SA])-derived measurements...
June 2017: Journal of Vascular Surgery
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