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https://www.readbyqxmd.com/read/29053913/morphological-changes-of-the-internal-carotid-artery-prevalence-and-characteristics-a-clinic-and-ultrasonographic-study-in-a-series-of-19-804-patients-over-25-years-old
#1
Hugo F G Martins, Alexandra Mayer, Paulo Batista, Fátima Soares, Vanessa Almeida, Ana Júlia Pedro, Victor Oliveira
BACKGROUND: Morphological changes of the internal carotid arteries (McICA) are frequently found during cervical ultrasound studies. However, McICA's etiology remains controversial. During this study, the prevalence and demographic characteristics of McICA such as kinking, coiling or looping, identified by Doppler ultrasound, were analysed and its relationship with vascular risk factors and stroke was assessed. METHODS: A retrospective study was performed by analysing 19,804 patients between Jan 2000 and Jun 2012 who were submitted to cervical ultrasonographic study...
October 20, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29053078/contralateral-transmaxillary-corridor-an-augmented-endoscopic-approach-to-the-petrous-apex
#2
Chirag R Patel, Eric W Wang, Juan C Fernandez-Miranda, Paul A Gardner, Carl H Snyderman
OBJECTIVE The endoscopic endonasal approach (EEA) has been shown to be an effective means of accessing lesions of the petrous apex. Lesions that are lateral to the paraclival segment of the internal carotid artery (ICA) require lateralization of the paraclival segment of the ICA or a transpterygoid infrapetrous approach. In this study the authors studied the feasibility of adding a contralateral transmaxillary (CTM) corridor to provide greater access to the petrous apex with decreased need for manipulation of the ICA...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29053072/quantitative-assessment-of-changes-in-hemodynamics-of-the-internal-carotid-artery-after-bypass-surgery-for-moyamoya-disease
#3
Fengping Zhu, Yi Qian, Bin Xu, Yuxiang Gu, Kaavya Karunanithi, Wei Zhu, Liang Chen, Ying Mao, Michael K Morgan
OBJECTIVE Although intracranial vessel remodeling has been observed in moyamoya disease, concerns remain regarding the effect of bypass surgery on hemodynamic changes within the internal carotid artery (ICA). The authors aimed to quantify the surgical effect of bypass surgery on bilateral ICAs in moyamoya disease and to estimate pressure drop (PD) along the length of the ICA to predict surgical outcomes. METHODS Records of patients who underwent bypass surgery for treatment of moyamoya disease and in whom flow rates were obtained pre- and postsurgery by quantitative MR angiography were retrospectively reviewed...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29046918/flow-diverter-treatment-of-cerebral-blister-aneurysms
#4
Russell Cerejo, Mark Bain, Seby John, Julian Hardman, Nina Moore, M Shazam Hussain, Gabor Toth
PURPOSE: Blood blister-like aneurysms (BBA) are small, friable, broad-based aneurysms that represent high risk for rerupture. Treatment of BBA is challenging, and may include surgical wrapping, clipping, multiple overlapping stents, and/or coiling. Flow diversion is a rapidly evolving treatment strategy for intracranial aneurysms, but the evidence for its use in cases of BBA is scarce. METHODS: A retrospective review of flow-diverter-treated, ruptured BBA cases at our tertiary care institution was undertaken...
October 18, 2017: Neuroradiology
https://www.readbyqxmd.com/read/29044294/serum-levels-of-anti-pon1-and-anti-hdl-antibodies-as-potential-biomarkers-of-premature-atherosclerosis-in-systemic-lupus-erythematosus
#5
Patricia López, Javier Rodríguez-Carrio, Aleida Martínez-Zapico, Ángel I Pérez-Álvarez, Raquel López-Mejías, Lorena Benavente, Lourdes Mozo Mozo, Luis Caminal-Montero, Miguel A González-Gay, Ana Suárez
The present study aimed to evaluate the possible role of immunoglobulin G (IgG) antibodies against high-density lipoproteins (HDL) and paraoxonase 1 (PON1) as possible biomarkers of cardiovascular disease (CVD) in systemic lupus erythematosus (SLE). To this end, levels of these autoantibodies, PON1 activity and total antioxidant capacity were quantified in serum samples from 198 SLE patients, 100 healthy controls (HC) and 42 non-autoimmune individuals with traditional cardiovascular risk factors. PON1 rs662 polymorphism was analysed in a subgroup of patients and controls...
October 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29044080/amalric-sign-an-augur-of-ophthalmic-artery-occlusion
#6
Prathibha Hande, Babi Sinha, Shivani Nayak, Srilakshmi Srinivasan, Jyothi Shetty
A 75-year-old man presented to us with sudden onset of profound vision loss in his right eye and was identified as suffering from an ophthalmic artery occlusion. Apart from the retinal whitening and box-carring of the retinal arteries, there were characteristic triangular patches of retinal whitening in the midperipheral temporal fundus indicating a previous lateral posterior choroidal artery occlusion. The patient was a chronic smoker and had dyslipidemia. The carotid Doppler study showed complete occlusion of the internal carotid artery...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29043093/anatomical-study-of-petrous-and-cavernous-parts-of-internal-carotid-artery
#7
Manisha Vijaywargiya, Rashmi Deopujari, Sunita Arvind Athavale
The petrous and cavernous parts of internal carotid artery (ICA) are obscure and are not readily accessible to observation/imaging. These parts have broad biological and medical interest because of their peculiar shape. Given the their clinical importance and the scarce data available based mostly on imaging, the present study was aimed at studying these parts of ICA by dissection. The study was carried out on 56 ICAs obtained from embalmed adult cadavers and 10 ICAs from five fetuses. The foetal ICAs were studied in situ...
September 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29042384/impact-of-internal-carotid-endarterectomy-on-visual-fields-a-non-randomised-prospective-cohort-study-in-austria
#8
Peter Konstantiniuk, Iris Steinbrugger, Stephan Koter, Johanna Muehlsteiner, Andreas Wedrich, Tina Cohnert
PURPOSE: The goal of this study was to determine whether internal carotid endarterectomy is associated with visual field changes. METHODS: Between March 2007 and December 2010, a cohort study involved 29 patients with stenosis of the carotid artery. All patients underwent ophthalmoscopy and kinetic visual field examination (Goldmann perimetry) preoperatively and postoperatively. Furthermore, a detailed area calculation was performed. On both the operated and the contralateral side, the areas surrounded by the different isopters (isopter areas) were determined and preoperative and postoperative values compared...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29042328/ruptured-persistent-trigeminal-artery-causing-direct-cavernous-sinus-fistula-treated-with-pipeline-embolization-and-minimal-coiling
#9
Nam K Yoon, Al-Wala Awad, James M Gee, Philipp Taussky
BACKGROUND: Rupture of a persistent trigeminal artery associated with development of a cavernous sinus fistula in a traumatic setting is rare. They are typically treated with coil embolization of the cavernous sinus. CASE DESCRIPTION: We present the case of a 42-year-old woman who developed a direct cavernous carotid fistula after a motor-vehicle accident. Angiographic imaging revealed a rupture point of a persistent trigeminal artery as it connected with the cavernous segment of the internal carotid artery (ICA), causing a cavernous sinus fistula...
October 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29040718/the-mcconnell-s-capsular-arteries-and-their-relevance-in-endoscopic-endonasal-approach-to-the-sellar-region
#10
Cristian Ferrareze Nunes, André Beer-Furlan, Francesco Doglietto, Ricardo Luis Carrau, Daniel Monte-Serrat Prevedello
BACKGROUND: The McConnell's capsular arteries (MCCA) were first described in 1953. They consist of medial branches of the cavernous internal carotid artery (ICA) and are divided in anterior and inferior capsular arteries. OBJECTIVE: To highlight the anatomy of the MCCA and its importance in the surgical treatment of tuberculum sellae and planum sphenoidale tumors through an endoscopic endonasal approach. METHODS: Ten cadaveric specimens fixed in formalin and perfused with colored silicone were dissected...
October 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29040698/clinical-outcome-after-endoscopic-endonasal-resection-of-tuberculum-sella-meningiomas
#11
Khaled Elshazly, Varun R Kshettry, Christopher J Farrell, Gurston Nyquist, Marc Rosen, James J Evans
BACKGROUND: In select cases, the endoscopic endonasal approach (EEA) has distinct advantages for resection of tuberculum sella meningiomas (TSM). OBJECTIVE: To report the extent of resection (EOR), complication rates, and outcomes in a large series of TSM treated by the EEA. METHODS: Twenty-five consecutive TSM cases treated by EEA from 2008 to 2016 were retrospectively reviewed. Patient history, imaging, volumetric EOR, complications, and outcomes are presented...
October 10, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29036794/assessing-the-effect-of-different-operation-techniques-on-postoperative-duplex-ultrasound-quality-after-carotid-endarterectomy
#12
E Grambow, T Heller, P Wieneke, C Weiß, E Klar, M Weinrich
BACKGROUND: Duplex ultrasound is the first choice in diagnostics and surveillance of stenoses of the internal carotid arteries before and even after surgery. Therefore, the quality of duplex ultrasound is crucial to investigate these vascular pathologies. OBJECTIVE: Aim of this study was the evaluation whether different surgical techniques affect the postoperative quality of duplex ultrasound. METHODS: In a time period from January to May 2015 duplex ultrasound of the cervical vessels was performed in 75 patients after unilateral endarterectomy of the internal carotid artery at our department between 2006 and 2012...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29032219/emergency-extracranial-intracranial-bypass-to-revascularize-salvageable-brain-tissue-in-acute-ischemic-stroke-patients
#13
Jan-Karl Burkhardt, Sebastian Winklhofer, Jorn Fierstra, Susanne Wegener, Giuseppe Esposito, Andreas Luft, Oliver Bozinov, Luca Regli
INTRODUCTION: To present an algorithm based on clinical and radiological factors including MR perfusion/diffusion mismatch (MR-PDM) for the indication of urgent cerebral bypass in patients with acute ischemic stroke METHODS: Analysis of clinical and radiological data on eight consecutive patients undergoing urgent cerebral revascularization for acute ischemic stroke due to occlusion of the internal carotid or middle cerebral artery between 2012 and 2015. All patients were either not eligible or failed first line treatment with emergent endovascular revascularization...
October 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29030499/unexpected-early-radiographic-findings-associated-with-a-ruptured-blister-like-carotid-wall-aneurysm
#14
James West, Jasmeet Singh, Stacey Q Wolfe, Kyle M Fargen
A 33-year-old man presented with aneurysmal subarachnoid hemorrhage from a ruptured, blister-type sidewall internal carotid artery (ICA) aneurysm. Balloon-assisted coiling was performed with residual neck. He subsequently developed severe vasospasm requiring intra-arterial therapies on multiple occasions, during which it was noted that despite widespread vasospasm, a focal segment of the ICA at the site of the aneurysm showed no significant spasm, suggesting underlying vessel abnormality. He was discharged without deficit and scheduled for flow diversion given concern over this potentially pathologic segment of vessel...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29030462/selective-ophthalmic-artery-chemosurgery-soac-for-retinoblastoma-fluoroscopic-time-and-radiation-dose-parameters-a-baseline-study
#15
Srikanth R Boddu, David H Abramson, Brian P Marr, Jasmine H Francis, Y Pierre Gobin
OBJECTIVE: To evaluate fluoroscopic time and radiation dose parameters, and factors affecting these parameters, during selective ophthalmic artery chemosurgery (SOAC) for retinoblastoma. MATERIALS AND METHODS: Retrospective review from the prospective database of all patients with retinoblastoma treated with SOAC over a 5-year period (September 2009-January 2015) at a single institution after receiving institutional review board approval. Patient demographics, arterial approach, access device, side of treatment, number of SOAC cycles/patient, number of drugs/SOAC, and radiation parameters (outcome variables), including the fluoroscopic time, dose-area product (DAP), and total radiation dose, were obtained from the database...
November 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29030046/ideal-cardiovascular-health-and-incidence-of-carotid-plaque-among-middle-aged-and-elderly-adults
#16
Li Guo, Linggang Cheng, Wen He, Yi Ju, Xingquan Zhao
BACKGROUND: The ideal cardiovascular health (CVH) has been reported to be associated with reduced risk of ischemic stroke (IS). Atherosclerosis is a fundamental precursor in progression to IS. This study aimed to investigate the association of CVH score and atherosclerosis defined by carotid plaque in a community-based cohort. METHODS: Data came from the Asymptomatic Polyvascular Abnormalities Community study. After exclusions for missing data and original carotid plaque, 1938 subjects were included...
October 10, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29029228/development-of-a-whole-task-simulator-for-carotid-endarterectomy
#17
Gabrielle Santangelo, Doran Mix, Ahmed Ghazi, Michael Stoner, G Edward Vates, Jonathan J Stone
BACKGROUND: Surgical education relies on operative exposure with live patients. Carotid endarterectomy (CEA) demands an experienced surgeon with a very low complication rate. The high-risk nature of this procedure and the decline in number of CEAs performed annually has created a gap in residency training. OBJECTIVE: To develop a high-fidelity whole-task simulation for CEA that demonstrates content, construct, and face validity. METHODS: Anatomically accurate models of the human neck were created using multilayered poly-vinyl alcohol hydrogels...
September 27, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29025779/scorpion-bite-induced-ischaemic-stroke
#18
Rakesh Reddy C, Nandakishore Bompelli, Vikram Khardenavis, Anirudda Deshpande
We report a 54-year-old woman with scorpion bite. After 3 hours of admission, the patient developed sudden onset tachycardia with hypotension. Cardiac evaluation showed raised creatine kinase MB isoenzyme was elevated; ECG and two-dimensional echocardiography findings were suggestive of myocarditis. Subsequently, she developed transient ventricular tachycardia before developing abrupt onset, right hemiplegia, global aphasia and progressive worsening of sensorium 12 hours after the bite. MRI of brain revealed massive left middle cerebral artery (MCA) territory infarct...
October 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29025728/necessary-catheter-diameters-for-mechanical-thrombectomy-with-adapt
#19
O Nikoubashman, A Nikoubashman, M Büsen, M Wiesmann
BACKGROUND AND PURPOSE: Large-bore catheters allow mechanical thrombectomy in ischemic stroke by engaging and retrieving clots without additional devices (direct aspiration first-pass technique [ADAPT]). The purpose of this study was to establish a model for minimal catheter diameters needed for ADAPT. MATERIALS AND METHODS: We established a theoretic model for the calculation of minimal catheter diameters needed for ADAPT. We then verified its validity in 28 ADAPT maneuvers in a porcine in vivo model...
October 12, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29025003/internal-carotid-artery-dissection-and-villeret-s-syndrome
#20
N Athuraliya, F Miteff
No abstract text is available yet for this article.
July 11, 2017: QJM: Monthly Journal of the Association of Physicians
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