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https://www.readbyqxmd.com/read/29351687/intraoperative-transpedicular-onyx-injection-to-reduce-vascularity-of-a-thoracic-hemangiopericytoma-after-unsuccessful-preoperative-endovascular-embolization-a-technical-report
#1
Hazem Mashaly, Zoe Zhang, Andrew Shaw, Patrick Youssef, Ehud Mendel
BACKGROUND AND IMPORTANCE: Hemangiopericytoma is a rare vascular tumor with central nervous system involvement representing only 1% of central nervous system tumors. They rarely affect the vertebral column. Complete surgical resection is the treatment of choice for hemangiopericytoma given their high rates of local recurrence. However, the high vascularity of such tumors with the risk of massive bleeding during surgery represents a significant challenge to surgeons. Therefore, preoperative endovascular embolization via the transarterial route has been advocated...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29346229/anatomical-variations-of-the-vertebral-artery-in-the-upper-cervical-spine-clinical-relevance-for-procedures-targeting-the-c1-c2-and-c2-c3-joints
#2
Maria Francisca Elgueta, Johanna Ortiz Jimenez, Nina Nan Wang, Almudena Pérez Lara, Jeffrey Chankowsky, Roshanak Charghi, De Q Tran, Roderick J Finlayson
BACKGROUND AND OBJECTIVES: Accidental breach of the vertebral artery (VA) during the performance of cervical pain blocks can result in significant morbidity. Whereas anatomical variations have been described for the foraminal (V2) segment of the VA, those involving its V3 portion (between the C2 transverse process and dura) have not been investigated and may be of importance for procedures targeting the third occipital nerve or the lateral atlantoaxial joint. METHODS: Five hundred computed tomography angiograms of the neck performed in patients older than 50 years for the management of cerebrovascular accident or cervical trauma (between January 2010 and May 2016) were retrospectively and independently reviewed by 2 neuroradiologists...
January 16, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29333567/predictors-for-intracranial-hemorrhage-following-intravenous-thrombolysis-in-posterior-circulation-stroke
#3
Dorňák Tomáš, Král Michal, Sedláčková Zuzana, Šaňák Daniel, Čecháková Eva, Divišová Petra, Zapletalová Jana, Kaňovský Petr
Intravenous thrombolysis (IVT) is a standard treatment for anterior (ACS) and posterior circulation stroke (PCS). However, due to the low occurrence of PCS and of intracranial hemorrhage (ICH) in PCS, the knowledge about ICH predictors following IVT in PCS is sparse. Our aim was to identify predictors for ICH following IVT in PCS. The set consisted of 1281 consecutive ischemic stroke (IS) patients treated with IVT, out of which 158 (103 males; mean age 65.6 ± 12.3 years) had PCS. Collected data include baseline characteristics, common stroke risk factors, pre-medication, stroke severity, admission blood glucose level, blood pressure and treatment with intravenous antihypertensive therapy before and during IVT, occlusion of arteries, recanalization rate, time to treatment, and clinical outcome at day 90...
January 15, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29329733/association-between-leukoaraiosis-and-cerebral-blood-flow-territory-alteration-in-asymptomatic-internal-carotid-artery-stenosis
#4
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...
January 9, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29327560/-research-progress-on-reatment-of-unstable-atlas-fracture-with-single-segment-fixation-by-transoral-approach
#5
REVIEW
Li-Ran Wang, Liu-Jun Zhao, Wei-Hu Ma
As a common type of fracture in cervical, atlas fracture is frequently unstable due to its special anatomical structure. In a previous treatment, external fixation was likely to bring low bony union rate and long-term neck pain, while occipito-cervical fusion and atlantoaxial fusion sacrifice range of motion in cervical spine. Reduction and single section fixation of atlas by anterior lateral mass screws through the transoral approach were reported by some scholars, and the retrospective study demonstrated the high healing rate, reservation of cervical ROM and less bleeding...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29326857/role-of-color-doppler-flowmetry-in-prediction-of-intrauterine-growth-retardation-in-high-risk-pregnancy
#6
Sachin Khanduri, Saakshi Chhabra, Santosh Yadav, Tushar Sabharwal, Mriganki Chaudhary, Tarim Usmani, Aakshit Goyal, Hritik Sharma
OBJECTIVE: To evaluate the usefulness of Color Doppler flowmetry in the prediction of intrauterine growth restriction (IUGR) in high-risk pregnancies. MATERIALS AND METHOD: A total of 62 high-risk pregnant women underwent Color Doppler flowmetric umbilical artery pulsatility index (PI), resistive index (RI) and systolic/diastolic (S/D) ratio, middle cerebral artery PI, RI and S/D ratio, Ductus venosus S-wave/isovolumetric A-wave index (SIA) and vertebral artery RI at 23-27 weeks, 28-32 weeks and 32-36 weeks of their pregnancy...
November 8, 2017: Curēus
https://www.readbyqxmd.com/read/29323631/endovascular-treatment-with-tirofiban-during-the-acute-stage-of-cervical-spinal-cord-infarction-due-to-vertebral-artery-dissection
#7
Yuanling Wu, Wenxian Li, Xiaomei Xie, Zhen Jing, Weibiao Lu, Li'an Huang
CONTEXT: Cervical spinal cord infarction is a rare and severe complication of vertebral artery dissection (VAD). We report a case of VAD in an acute stage followed by cervical spinal cord infarction that was treated using direct endovascular tirofiban infusion via digital subtraction angiography (DSA) monitoring. FINDINGS: A 48-year-old man presented with vertigo, neck pain, numbness and weakness in four limbs with subsequent cardiac and respiratory arrest. Neurological examination revealed hypoesthesia below the neck with grade one myodynamia on the right side of the limbs and zero on the left side...
January 11, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29322981/expansile-manubriotomy-for-ventral-cervicothoracic-junction-disease
#8
Sudhir Dubey, Amit Agrawal
Cervicothoracic junction can be approached anteriorly, anterolaterally, posterolaterally, and posteriorly. The anterior approaches in this region best address the ventral vertebral body disease but may cause significant morbidity. Twelve patients with their disease process located ventral to the spinal cord in the cervicothoracic junction underwent expansile manubriotomy and corpectomy. Eleven patients underwent fusion. One patient underwent an oblique corpectomy. All patients had their disease process from T1 to T3 vertebral levels...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29322965/endovascular-strategies-for-management-of-intradural-vertebral-artery-dissecting-aneurysms
#9
Swati D Chinchure, Vijay Jaykrishnan, B P Krishna Prasad
OBJECTIVE: Endovascular treatment of vertebral intradural dissecting aneurysms is complex and requires different strategies for each case. The current study aims to classify these aneurysms for an easy selection of optimal strategies for endovascular therapy. MATERIALS AND METHODS: This study is a retrospective evaluation of 10 patients harbouring a vertebral intradural dissecting aneurysm (including 6 female and 4 male patients). The clinical, procedural, and angiographic data were evaluated...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29322955/endovascular-management-of-vertebral-artery-dissecting-aneurysms
#10
Vipul Gupta, Rajsrinivas Parthasarathy
No abstract text is available yet for this article.
January 2018: Neurology India
https://www.readbyqxmd.com/read/29318090/c1-2-fixation-approach-for-patients-with-vascular-irregularities-a-case-report
#11
Alireza K Nazemi, Stetson R Bickley, Caleb J Behrend, Jonathan J Carmouche
In posterior spinal fusion (PSF), the vertebral artery is most vulnerable to injury at C1-2. C2 pedicle screws are often placed into the dorsomedial isthmus of C2. Alternative techniques include C2 laminar screws and wiring techniques. A 67-year-old male underwent PSF for persistent severe intractable neck pain and degeneration at C1-2. The patient had an enlarged left vertebral artery with midline migration into the C2 body. This pattern was within one standard deviation of normal; however, it rendered typical placement of a C2 pedicle screw unsafe...
December 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29317976/postpartum-sudden-cardiac-death-after-spontaneous-coronary-artery-dissection-in-a-patient-with-fibromuscular-dysplasia
#12
Tannaz Shoja, Craig Basman, Suresh Jain, Aditya Mangla, Zoran Lasic
Spontaneous coronary artery dissection (SCAD) is a rare entity that can cause acute myocardial infarction and sudden cardiac death (SCD) which often goes unrecognized. We report a case of SCAD in a young postpartum female who presented with sudden cardiac arrest. The patient was managed medically and found to have fibromuscular dysplasia (FMD). After being stabilized in the critical care unit, coronary angiography was performed which showed dissection of the left main artery, intramural hematoma, and the culprit lesion...
December 2017: Cardiology Research
https://www.readbyqxmd.com/read/29315103/extracranial-vertebral-artery-dissecting-aneurysm-with-snowboarding-a-case-report
#13
Kent H Do, Jeffrey C Leggit, Alexander Galifianakis
No abstract text is available yet for this article.
January 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29307021/cerebellar-infarction-after-posterior-direct-reduction-and-fixation-to-treat-an-unstable-jefferson-fracture-a-case-report
#14
Seung Hwan Baek, Seung Ho Yoo, Kyoung Rai Cho, Jun Jae Shin
A 42-year-old man had an unstable Jefferson type IV atlas fracture with unilateral vertebral artery occlusion after a diving accident. We performed C1-ring reconstruction with a crosslink rod and C2 fixation to directly reduce the fracture fissure. Within 6 h, cerebellar hemisphere infarction developed. After decompressive craniectomy, duroplasty, and release of the vertebral artery occlusion caused by the transfixing rod, a postoperative computed tomography angiogram showed that blood flow in the right vertebral artery improved...
January 6, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29306594/vertebrobasilar-artery-stroke-as-the-heralding-sign-of-systemic-lupus-erythematosus
#15
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...
January 3, 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
#16
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/29301846/epithelial-properties-of-the-second-heart-field
#17
REVIEW
Claudio Cortes, Alexandre Francou, Christopher De Bono, Robert G Kelly
The vertebrate heart tube forms from epithelial progenitor cells in the early embryo and subsequently elongates by progressive addition of second heart field (SHF) progenitor cells from adjacent splanchnic mesoderm. Failure to maximally elongate the heart results in a spectrum of morphological defects affecting the cardiac poles, including outflow tract alignment and atrioventricular septal defects, among the most common congenital birth anomalies. SHF cells constitute an atypical apicobasally polarized epithelium with dynamic basal filopodia, located in the dorsal wall of the pericardial cavity...
January 5, 2018: Circulation Research
https://www.readbyqxmd.com/read/29301033/endovascular-transcirculation-management-of-iatrogenic-vertebral-artery-dissection-with-the-floss-technique-and-flow-diversion-2-dimensional-operative-video
#18
Leonardo Rangel-Castilla, Hussain Shallwani, Hakeem J Shakir, Elad I Levy, Adnan H Siddiqui
No abstract text is available yet for this article.
December 30, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29288397/a-cadaveric-study-of-aortic-arch-variation-in-an-irish-population
#19
Aisling M O'Malley, Walid H El Kininy, Helina Debebe, Azreena B Burukan, Shane W Davy
AIM: The aim of this study is to investigate the incidence of variation in the branching pattern of aortic arch (AA) vessels in an Irish population. METHOD: A cadaveric study of 24 subjects was conducted. The vessels of the AA were identified, their branching patterns were noted and photographed and the following measurements were recorded: the angle of the AA to the coronal plane, the distance from the midline to the brachiocephalic trunk (BCT); the left common carotid artery (LCC) ; the left subclavian artery (LSC), the distance between the BCT and the right subclavian artery (RSC); the RSC and the right vertebral artery (RVA), and between the LSC and left vertebral artery (LVA)...
December 29, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29288330/evaluation-of-vertebral-artery-anomaly-in-basilar-invagination-and-prevention-of-vascular-injury-during-surgical-intervention-cta-features-and-analysis
#20
Shuaishuai Xu, Shidong Ruan, Xiaoyu Song, Jinyu Yu, Jianrong Xu, Ruozhen Gong
OBJECTIVE: To evaluate vertebral artery anomaly at the craniovertebral junction (CVJ) in patients with basilar invagination (BI) by computed tomographic angiography (CTA), and to discuss the prevention strategy of vascular injury. METHODS: The primary axial, multiple planar reconstruction and volume-rendering cervicocranial CTA images of 39 BI patients were analysed to evaluate vertebral artery anomaly at the CVJ: persistent first intersegmental artery (PFIA), fenestrated vertebral artery (FEN), and extracranial C1/2 origin of posterior inferior cerebellar artery (PICA), high-riding vertebral artery, side-to-side asymmetry and irregular midline carotid artery loop was determined by subjective vision...
December 29, 2017: European Spine Journal
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