keyword
MENU ▼
Read by QxMD icon Read
search

Vertebral artery tortuosity

keyword
https://www.readbyqxmd.com/read/28192269/anterior-transposition-of-anomalous-tortuous-vertebral-artery-causing-cervical-radiculopathy-a-report-of-2-cases-and-review-of-literature
#1
Doris D Wang, Jan-Karl Burkhardt, Stephen T Magill, Michael T Lawton
BACKGROUND: Cervical radiculopathy secondary to compression from vertebral artery (VA) tortuosity is a rare entity. OBJECTIVE: To describe successful transposition of tortuous VA loops causing cervical radiculopathy through an anterolateral approach. METHODS: Two patients with cervical radiculopathy (first case at C5-6 and second case at C3-4) secondary to anomalous VA loop compression underwent anterolateral approaches to the cervical spine for decompression and VA transposition...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28073311/cervical-artery-tortuosity-is-associated-with-intracranial-aneurysm
#2
Paul-Emile Labeyrie, Florent Braud, Clément Gakuba, Thomas Gaberel, Cyrille Orset, Romain Goulay, Evelyne Emery, Patrick Courthéoux, Emmanuel Touzé
Background Intracranial aneurysms may be associated with an underlying arteriopathy, leading to arterial wall fragility. Arterial tortuosity is a major characteristic of some connective tissue disease. Aim To determine whether intracranial aneurysm is associated with an underlying arteriopathy. Methods Using a case-control design, from May 2012 to May 2013, we selected intracranial aneurysm cases and controls from consecutive patients who had conventional cerebral angiography in our center. Cases were patients with newly diagnosed intracranial aneurysm...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28065612/vertebral-tortuosity-index-in-patients-with-non-connective-tissue-disorder-related-aneurysm-disease
#3
F Virgilio, B Maurel, M Davis, G Hamilton, T M Mastracci
OBJECTIVE: The vertebral tortuosity index (VTI) predicts increased risk of acute aortic events in patients with known genetic aortopathies. This study describes the VTI in a cohort of patients with non-connective tissue disorder-related large aneurysms. METHODS: Hospital imaging records from July 2012 to March 2016 were interrogated to identify patients with aneurysmal disease who had undergone computed tomographic angiography that included imaging of vertebral arteries...
January 5, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27996178/quantitative-analysis-of-extracranial-arterial-tortuosity-in-patients-with-sickle-cell-disease
#4
Karen Buch, Rahul Arya, Bhavya Shah, Rohini N Nadgir, Naoko Saito, Muhammad M Qureshi, Osamu Sakai
PURPOSE: Compared to the intracranial vasculature in sickle cell disease (SCD) patients, the morphologic changes of the extracranial vasculature in SCD patients are less well understood. The purpose of this study was to evaluate the tortuosity of the extracranial carotid and vertebral arteries in patients with SCD compared to age-matched controls. METHODS: Following Institution Review Board approval, between January 2004 and December 2013, Magnetic resonance angiogram neck examinations were retrospectively reviewed on 56 patients with SCD and 56 age-matched controls...
December 20, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/27888081/bow-hunter-s-syndrome-from-a-tortuous-v1-segment-vertebral-artery-treated-with-stent-placement
#5
Rouzbeh Motiei-Langroudi, Christoph J Griessenauer, Abdulrahman Alturki, Nimer Adeeb, Ajith J Thomas, Christopher S Ogilvy
BACKGROUND: Bow hunter's syndrome is a dynamic and reversible occlusion of the vertebral artery occurring after rotation or extension of the neck. The V3 segment is the most common site of compression, especially at the atlantoaxial joint. Surgical decompression with or without cervical fusion has been the mainstay of therapy. Endovascular intervention, such as placement of stents, is rarely performed. METHODS: We report a patient with bow hunter's syndrome from tortuosity of the V1 segment of the VA treated with a self-expanding biliary stent placement...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27831484/dynamic-respiratory-tortuosity-of-the-vertebral-artery-ostium
#6
Xiaobin Tang, Feng Tang, Chang Hu, Qian Wang, Whitney Long, Lei Li
PURPOSE: To determine the prevalence of dynamic respiratory tortuosity (DRT) of the vertebral artery ostium (VAO) as well as to evaluate its correlation with in-stent restenosis (ISR) and stent fracture. METHODS: From March 2012 to June 2015, 178 consecutive patients (mean age 65.2±5.8 years; 124 men) with symptoms of atherosclerotic vertebrobasilar ischemia underwent angiography prior to stent implantation in the vertebral, subclavian, and/or carotid arteries...
February 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27531344/vascular-tortuosity-may-be-associated-with-cervical-artery-dissection
#7
Bum Joon Kim, Ewha Yang, Na-Young Kim, Mi-Jung Kim, Dong-Wha Kang, Sun U Kwon, Jong S Kim
BACKGROUND AND PURPOSE: Dissection is an increasingly recognized cause of ischemic stroke, which occurs spontaneously or after trauma, in relatively young patients. We hypothesized that there might be a predisposing factor weakening the vascular wall and that arterial tortuosity might be higher in patients with dissection. METHODS: We consecutively enrolled cervical artery dissection (CerAD) patients who had undergone magnetic resonance angiography. Age- and sex-matched healthy subjects who underwent magnetic resonance angiography in a routine health examination were used as controls...
October 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27473840/vascular-tortuosity-in-relationship-with-hypertension-and-posterior-fossa-volume-in-hemifacial-spasm
#8
Evan Cyril Edmond, Samantha Xue-Li Sim, Hui-Hua Li, Eng-King Tan, Ling-Ling Chan
BACKGROUND: Hemifacial spasm (HFS) is a disabling neurological condition. Vascular tortuosity in HFS patients has not been quantified objectively and its relationship with hypertension and posterior fossa volume (PF) is unknown. In a case control magnetic resonance imaging and angiographic (MRI/A) study, we quantified and compared the vascular tortuosity in HFS and controls, and evaluated its relationship with hypertension and PF. METHODS: Using a commercially available vessel probe tool, an index of tortuosity based on vessel over chord length was employed to quantify vascular tortuosity of the vertebral (VA) and basilar arteries (BA) in 79 subjects (40 HFS, 39 controls)...
July 29, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27386771/dissection-and-aneurysm-in-patients-with%C3%A2-fibromuscular-dysplasia-findings-from-the-u-s-registry-for-fmd
#9
Daniella Kadian-Dodov, Heather L Gornik, Xiaokui Gu, James Froehlich, J Michael Bacharach, Yung-Wei Chi, Bruce H Gray, Michael R Jaff, Esther S H Kim, Pamela Mace, Aditya Sharma, Eva Kline-Rogers, Christopher White, Jeffrey W Olin
BACKGROUND: Fibromuscular dysplasia (FMD) is a noninflammatory arterial disease that predominantly affects women. The arterial manifestations may include beading, stenosis, aneurysm, dissection, or tortuosity. OBJECTIVES: This study compared the frequency, location, and outcomes of FMD patients with aneurysm and/or dissection to those of patients without. METHODS: The U.S. Registry for FMD involves 12 clinical centers. This analysis included clinical history, diagnostic, and therapeutic procedure results for 921 FMD patients enrolled in the registry as of October 17, 2014...
July 12, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27356786/-rules-of-anatomic-morphology-changes-between-the-vertebral-artery-tortuosity-and-transverse-foramen
#10
T F Yan, J C Sun, L Fan, Y Wang, Y Yang, D Y Chen, J G Shi, G D Shi
OBJECTIVE: To explore the rules of the anatomic morphology between vertebral artery tortuosity and transverse foramen. METHODS: From January 2012 to December 2015, 60 patients with vertebral artery tortuosity by means of analyzing the image data and basic clinic information as the observation group, and 50 patients randomly selected exclusive of vertebral artery tortuosity, absence of vertebral artery, vertebral artery aneurysm, cervical decomposition incomplete deformity and oral cavity prosthesis artifacts as the control group, the basic clinical information was collected; the transverse foramen area (TF) and vertebral artery cross-sectional area (VA) of the vertebral artery were measured in the observation group and the control group; internal diameter of vertebral artery tortuosity, length of vertebral artery were measured and; twisting coefficient (s)of the vertebral artery was calculated...
June 21, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27029331/-trigeminal-neuralgia-and-hemifacial-spasm-associated-with-vertebrobasilar-artery-tortuosity
#11
Yu A Grigoryan, A R Sitnikov, G Yu Grigoryan
BACKGROUND: The tortuous vertebrobasilar artery (TVBA) often causes neurovascular conflicts in patients with trigeminal neuralgia (TN) and hemifacial spasm (HFS). Implementation of microvascular decompression (MVD) in these circumstances is hindered due to stiffness of the enlarged and dilated arteries and is often accompanied by poor outcomes. The surgical strategy in cases of trigeminal neuralgia and hemifacial spasm associated with the TVBA should be clarified in order to achieve good outcomes...
2016: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/26600925/qureshi-5-catheter-for-complex-supra-and-abdominal-aortic-catheterization
#12
Adnan I Qureshi, WeiGang Xiao, HongLiang Liu
BACKGROUND: The use of previously described catheter technique was expanded to complex supra- and abdominal- aortic catheterizations. METHODS: A new (Qureshi 5) catheter with curved shape at the distal end that has two lumens was used. One of lumens can accommodate a 0.035-inch guide wire and the second lumen can accommodate a 0.018-inch guide wire and terminates at the beginning of the distal curve of the first lumen. The manipulation and engagement of the curved distal end catheter was facilitated by rotation and movement of the J-shaped 0...
October 2015: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/26110082/microsurgical-clipping-for-the-true-posterior-communicating-artery-aneurysm-in-the-distal-portion-of-the-posterior-communicating-artery
#13
Masaru Takeda, Hiroshi Kashimura, Kohei Chida, Toshiyuki Murakami
BACKGROUND: Aneurysms arising from the posterior communicating artery (PCoA) itself are rare in which aneurysms usually located in the proximal portion of the PCoA. The authors report a case of the true PCoA ruptured aneurysm in the distal portion of the PCoA. CASE DESCRIPTION: The patient was an 83-year-old man who suffered subarachnoid hemorrhage. Cerebral angiography revealed a saccular aneurysm arising on the fetal type right PCoA itself in the distal portion of the PCoA...
2015: Surgical Neurology International
https://www.readbyqxmd.com/read/26014360/the-effect-of-head-rotation-on-the-geometry-and-hemodynamics-of-healthy-vertebral-arteries
#14
Nicolas Aristokleous, Ioannis Seimenis, Georgios C Georgiou, Andrew Nicolaides, Andreas S Anayiotos
The geometric and hemodynamic characteristics of the left and right vertebral arteries (LVA, RVA) of six healthy volunteers were investigated for the supine (S) and the prone position (P) a common sleeping posture with head rotation. MRI images were used to reconstruct the subject specific three-dimensional solid models of the LVA and RVA from the level of the carotid bifurcation to the vertebrobasilar junction (VJ). Geometric parameters such as cross sectional area ratio, curvature, tortuosity and branch angle were estimated...
June 2015: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/25931427/age-related-morphologic-changes-of-the-vertebral-artery-in-the-transverse-process-analysis-by-multidetector-computed-tomography-angiography
#15
Banu Alicioglu, Nadir Gulekon, Suha Akpinar
BACKGROUND CONTEXT: The V2 segment of the vertebral artery (VA) ascends and passes through the transverse foramen (TF) of the C6-C1 vertebrae. Atherosclerosis of the VA and degenerative changes in the cervical spine are likely to occur with aging, and subsequent morphologic changes may alter the normal anatomy. PURPOSE: The aim was to determine the morphologic changes of TF and VA in relation to aging. STUDY DESIGN/SETTING: This was a retrospective cross-sectional study...
September 1, 2015: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/25882138/fibromuscular-dysplasia-an-update-for-the-headache-clinician
#16
REVIEW
Sarah C O'Connor, Neil Poria, Heather L Gornik
BACKGROUND: Fibromuscular dysplasia (FMD) is an uncommon vascular disease that presents with stenosis, aneurysm, dissection, beading, and tortuosity of medium-sized arteries. It primarily manifests in the renal and extracranial carotid and vertebral arteries, and is associated with major vascular events such as carotid artery dissection, renal artery dissection, ruptured aneurysm, transient ischemic attack, stroke, and myocardial infarction (due to coronary artery dissection). DISCUSSION: There is a wide spectrum of disease severity among FMD patients...
May 2015: Headache
https://www.readbyqxmd.com/read/25817257/carotid-and-vertebral-arterial-variations-in-alzheimer-s-disease
#17
Rui Zhou, Dong Liu, Ke Yu, Yang Chen, Ling Li, Jianzhong Xu, Huadong Zhou
The effects of carotid and vertebral arterial morphological variations on cognitive function impairment remain unclear. We investigated the association between extracranial carotid and vertebral arterial variations and the risk of Alzheimer's disease (AD). A prospective study with a 5-year followup was conducted from July 2008 to June 2013. A total of 1741 subjects (50 years of age and older) were examined for carotid and vertebral arterial variations using computed tomography angiography (CTA) and completed the study follow-up...
2015: Current Alzheimer Research
https://www.readbyqxmd.com/read/25585837/characteristic-anatomical-conformation-of-the-vertebral-artery-causing-vascular-compression-against-the-root-exit-zone-of-the-facial-nerve-in-patients-with-hemifacial-spasm
#18
Jung-Soo Park, Eun-Jeong Koh, Ha-Young Choi, Jong-Myong Lee
BACKGROUND: Hemifacial spasm (HFS) is caused by tortuous offending vessels near the facial nerve root exit zone. However, the definitive mechanism of offending vessel formation remains unclear. We hypothesized that vascular angulation and tortuosity, probably caused by uneven vertebral artery blood flow, result in vascular compression of the facial nerve root exit zone. METHODS: The authors observed two anatomical characteristics of the vertebrobasilar arterial system in 120 subjects in the surgical group and 188 controls...
March 2015: Acta Neurochirurgica
https://www.readbyqxmd.com/read/25395658/attenuation-of-blood-flow-pulsatility-along-the-atlas-slope-a-physiologic-property-of-the-distal-vertebral-artery
#19
T Schubert, M Pansini, O Bieri, C Stippich, S Wetzel, S Schaedelin, A von Hessling, F Santini
BACKGROUND AND PURPOSE: Physiologic and pathologic arterial tortuosity may attenuate blood flow pulsatility. The aim of this prospective study was to assess a potential effect of the curved V3 segment (Atlas slope) of the vertebral artery on arterial flow pulsatility. The pulsatility index and resistance index were used to assess blood flow pulsatility. MATERIALS AND METHODS: Twenty-one healthy volunteers (17 men, 4 women; mean age, 32 years) were examined with a 3T MR imaging system...
March 2015: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/25337106/characteristics-of-vascular-lesions-in-patients-with-posterior-circulation-infarction-according-to-age-and-region-of-infarct
#20
Daopei Zhang, Shuling Zhang, Hongtao Zhang, Yuming Xu
Patients with posterior circulation infarction underwent CT angiography and magnetic resonance angiography. Intracranial and extracranial vasculopathy was evaluated according to age group and location of stroke. Patients aged > 60 years and < 60 years had similar rates of vertebral artery dominance and vertebrobasilar artery developmental or origin anomalies. Vertebrobasilar artery stenosis or occlusion and tortuosity occurred more frequently in patients aged > 60 years than < 60 years. The rates of vertebrobasilar artery anomalies and tortuosity were high in patients with posterior circulation infarction...
November 15, 2012: Neural Regeneration Research
keyword
keyword
70978
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"