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https://www.readbyqxmd.com/read/28445914/clinical-significance-of-intraluminal-contrast-enhancement-in-patients-with-spontaneous-cervical-artery-dissection-a%C3%A2-black-blood-mri-study
#1
Eva Coppenrath, Olga Lenz, Nora Sommer, Nina Lummel, Jennifer Linn, Karla Treitl, Fabian Bamberg, Maximilian Reiser, Thomas Pfefferkorn, Tobias Saam
Purpose Recent studies have suggested that intraluminal thrombi show contrast enhancement on carotid black-blood T1w MRI. The aim of this study was to evaluate the significance of intraluminal contrast enhancement (iCE) regarding symptom status in patients with spontaneous cervical artery dissection (sCAD). Methods 33 consecutive patients (19 men) with sCAD received a brain MRI (DIFF, T2w, T2*w, FLAIR) and a multi-sequence 3T-MRI with fat-saturated high-resolution black-blood T1w-sequences pre- and post-contrast, contrast-enhanced MR angiography and TOF images of carotid and vertebral arteries...
April 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28436305/quality-of-life-after-intra-arterial-treatment-for-acute-ischemic-stroke-in-the-mr-clean-trial-update
#2
Jennifer Schreuders, Lucie A van den Berg, Puck Ss Fransen, Olvert A Berkhemer, Debbie Beumer, Hester F Lingsma, Robert J van Oostenbrugge, Wim H van Zwam, Charles Blm Majoie, Aad van der Lugt, Paul Lm de Kort, Yvo Bwem Roos, Diederik Wj Dippel
Background Health-related quality of life measured with the EuroQol Group 5-Dimension Self-Report Questionnaire was one of the secondary outcomes in the Multicenter Randomized Clinical trial of Endovascular treatment for Acute ischemic stroke in the Netherlands (MR CLEAN). We reported no statistically significant difference in EuroQol Group 5-Dimension Self-Report Questionnaire score between the intervention and control groups, but deaths were not included. Aims Reanalyze the effect of intra-arterial treatment for large vessel occlusion in acute ischemic stroke patients on health-related quality of life in more detail...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28432519/carotid-plaque-with-expansive-arterial-remodeling-is-a-risk-factor-for-ischemic-complication-following-carotid-artery-stenting
#3
Daina Kashiwazaki, Naoya Kuwayama, Naoki Akioka, Kyo Noguchi, Satoshi Kuroda
BACKGROUND: Carotid artery stenting (CAS) is associated with a higher risk of periprocedural stroke than carotid endarterectomy. For better patient selection, more accurate risk factors should be identified. The aim of this study was to determine whether expansive arterial remodeling can predict ischemic complications in patients undergoing CAS. METHODS: This retrospective study included 82 patients with carotid stenosis treated by CAS. The plaque component was evaluated using MR plaque imaging before the procedure...
April 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28432266/baseline-blood-pressure-effect-on-the-benefit-and-safety-of-intra-arterial-treatment-in-mr-clean-multicenter-randomized-clinical-trial-of-endovascular-treatment-of-acute-ischemic-stroke-in-the-netherlands
#4
Maxim J H L Mulder, Saliha Ergezen, Hester F Lingsma, Olvert A Berkhemer, Puck S S Fransen, Debbie Beumer, Lucie A van den Berg, Geert Lycklama À Nijeholt, Bart J Emmer, H Bart van der Worp, Paul J Nederkoorn, Yvo B W E M Roos, Robert J van Oostenbrugge, Wim H van Zwam, Charles B L M Majoie, Aad van der Lugt, Diederik W J Dippel
BACKGROUND AND PURPOSE: High blood pressure (BP) is associated with poor outcome and the occurrence of symptomatic intracranial hemorrhage in acute ischemic stroke. Whether BP influences the benefit or safety of intra-arterial treatment (IAT) is not known. We aimed to assess the relation of BP with functional outcome, occurrence of symptomatic intracranial hemorrhage and effect of IAT. METHODS: This is a post hoc analysis of the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment of Acute Ischemic Stroke in the Netherlands)...
April 21, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28414667/the-mysterious-case-of-dyspnea
#5
S Saad, N Turaga, J Grant, N Jain
INTRODUCTION: Dehiscence of a mitral valve annuloplasty ring is a rare occurrence that often manifests as mitral regurgitation and heart failure. We present a case of mitral ring dehiscence which was initially unrecognized by standard 2-dimensional transthoracic echocardiography (2D TTE); and 2-dimensional transesophageal echocardiography (2D TEE);. CASE: A 65-year-old woman was referred to Cardiology clinic for evaluation of dyspnea. Her history included tobacco abuse, atrial fibrillation status post pulmonary vein isolation, nonischemic cardiomyopathy, and prior mitral valve repair with annuloplasty ring for rheumatic valvular disease...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28411753/2016-update-to-the-american-association-for-thoracic-surgery-aats-consensus-guidelines-ischemic-mitral-valve-regurgitation
#6
Irving L Kron, Damien J LaPar, Michael A Acker, David H Adams, Gorav Ailawadi, Steven F Bolling, Judy W Hung, D Scott Lim, Michael J Mack, Patrick T O'Gara, Michael K Parides, John D Puskas
No abstract text is available yet for this article.
May 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28404769/a-decrease-in-blood-pressure-is-associated-with-unfavorable-outcome-in-patients-undergoing-thrombectomy-under-general-anesthesia
#7
Kilian M Treurniet, Olvert A Berkhemer, Rogier V Immink, Hester F Lingsma, Vivian M C Ward-van der Stam, Markus W Hollmann, Jaap Vuyk, Wim H van Zwam, Aad van der Lugt, Robert J van Oostenbrugge, Diederik W J Dippel, Jonathan M Coutinho, Yvo B W E M Roos, Henk A Marquering, Charles B L M Majoie
BACKGROUND: Up to two-thirds of patients are either dependent or dead 3 months after thrombectomy for acute ischemic stroke (AIS). Loss of cerebral autoregulation may render patients with AIS vulnerable to decreases in mean arterial pressure (MAP). OBJECTIVE: To determine whether a fall in MAP during intervention under general anesthesia (GA) affects functional outcome. METHODS: This subgroup analysis included patients from the MR CLEAN trial treated with thrombectomy under GA...
April 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28395788/diagnosis-and-treatment-of-chronic-mesenteric-ischemia-an-update
#8
REVIEW
Jeroen J Kolkman, Robert H Geelkerken
Although the prevalence of mesenteric artery stenoses (MAS) is high, symptomatic chronic mesenteric ischemia (CMI) is rare. The collateral network in the mesenteric circulation, a remnant of the extensive embryonal vascular network, serves to prevent most cases of ischemia. This explains the high incidence of MAS and relative rarity of cases of CMI. The number of affected vessels is the major determinant in CMI development. Most subjects with single vessel mesenteric stenosis do not develop ischemic complaints...
February 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28389610/admission-glucose-and-effect-of-intra-arterial-treatment-in-patients-with-acute-ischemic-stroke
#9
Elizabeth Osei, Heleen M den Hertog, Olvert A Berkhemer, Puck S S Fransen, Yvo B W E M Roos, Debbie Beumer, Robert J van Oostenbrugge, Wouter J Schonewille, Jelis Boiten, Adrienne A M Zandbergen, Peter J Koudstaal, Diederik W J Dippel
BACKGROUND AND PURPOSE: Hyperglycemia on admission is common after ischemic stroke. It is associated with unfavorable outcome after treatment with intravenous thrombolysis and after intra-arterial treatment. Whether hyperglycemia influences the effect of reperfusion treatment is unknown. We assessed whether increased admission serum glucose modifies the effect of intra-arterial treatment in patients with acute ischemic stroke. METHODS: We used data from the MR CLEAN (Multicenter Randomized Clinical trial of Endovascular treatment for acute ischemic stroke in the Netherlands)...
April 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28379802/two-year-outcome-after-endovascular-treatment-for-acute-ischemic-stroke
#10
RANDOMIZED CONTROLLED TRIAL
Lucie A van den Berg, Marcel G W Dijkgraaf, Olvert A Berkhemer, Puck S S Fransen, Debbie Beumer, Hester F Lingsma, Charles B L M Majoie, Diederik W J Dippel, Aad van der Lugt, Robert J van Oostenbrugge, Wim H van Zwam, Yvo B W E M Roos
BACKGROUND: Several trials involving patients with acute ischemic stroke have shown better functional outcomes with endovascular treatment than with conventional treatment at 90 days after initiation of treatment. However, results on long-term clinical outcomes are lacking. METHODS: We assessed clinical outcomes 2 years after patients were randomly assigned to receive either endovascular treatment (intervention group) or conventional treatment (control group) for acute ischemic stroke...
April 6, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28378026/considerations-on-the-relevance-of-cerebral-fusiform-aneurysms-observed-during-hiv-infection
#11
Bruno Law-Ye, Robert-Yves Carlier, Raphaël Richard, Raphaël Blanc, Claire Jourdan, Pierre de Truchis, Flore Viry, Didier Dormont, Delphine Leclercq, Frédéric Clarençon
Human immunodeficiency virus (HIV)-associated ectatic cerebral vasculitis (HIV-AECV) is a rare form of vasculitis with diffuse fusiform aneurysms. Its pathophysiology remains poorly understood. Although extensively described in children, it is still incompletely studied in adults. Our objective was to present five adult cases with emphasis on imaging findings and long-term evolution. From 2006 to 2014, we included 5 HIV-infected patients presenting with fusiform cerebral aneurysms. Vessels abnormalities were assessed with brain computed tomography (CT) angiography, magnetic resonance angiography (MRA) and/or digital subtraction angiography (DSA)...
April 4, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28366054/advanced-imaging-in-acute-ischemic-stroke
#12
REVIEW
Craig Kilburg, J Scott McNally, Adam de Havenon, Philipp Taussky, M Yashar S Kalani, Min S Park
The evaluation and management of acute ischemic stroke has primarily relied on the use of conventional CT and MRI techniques as well as lumen imaging sequences such as CT angiography (CTA) and MR angiography (MRA). Several newer or less-established imaging modalities, including vessel wall MRI, transcranial Doppler ultrasonography, and 4D CTA and MRA, are being developed to complement conventional CT and MRI techniques. Vessel wall MRI provides high-resolution analysis of both extracranial and intracranial vasculature to help identify previously occult lesions or characteristics of lesions that may portend a worse natural history...
April 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28364006/detection-of-focal-longitudinal-changes-in-the-brain-by-subtraction-of-mr-images
#13
N Patel, M A Horsfield, C Banahan, A G Thomas, M Nath, J Nath, P B Ambrosi, E M L Chung
BACKGROUND AND PURPOSE: The detection of new subtle brain pathology on MR imaging is a time-consuming and error-prone task for the radiologist. This article introduces and evaluates an image-registration and subtraction method for highlighting small changes in the brain with a view to minimizing the risk of missed pathology and reducing fatigue. MATERIALS AND METHODS: We present a fully automated algorithm for highlighting subtle changes between multiple serially acquired brain MR images with a novel approach to registration and MR imaging bias field correction...
March 31, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28357714/the-role-for-cardiovascular-remodeling-in-cardiovascular-outcomes
#14
REVIEW
Nishant Krishna Sekaran, Anna Lisa Crowley, Fernanda Rodrigues de Souza, Elmiro Santos Resende, Sunil V Rao
PURPOSE OF REVIEW: Ischemic and non-ischemic injury to the heart causes deleterious changes in ventricular size, shape, and function. This adverse remodeling is mediated by neurohormonal and hemodynamic alterations and is reflected in non-invasive measures of left ventricular ejection fraction (LVEF), left ventricular end-systolic volume (LVESV), and left ventricular end-diastolic volume (LVEDV). These measures are closely linked to cardiovascular outcomes and have become key surrogate endpoints for evaluating the therapeutic efficacy of contemporary treatments for heart failure with reduced ejection fraction (HFrEF)...
May 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28351963/associations-of-ischemic-lesion-volume-with-functional-outcome-in-patients-with-acute-ischemic-stroke-24-hour-versus-1-week-imaging
#15
Amber Bucker, Anna M Boers, Joseph C J Bot, Olvert A Berkhemer, Hester F Lingsma, Albert J Yoo, Wim H van Zwam, Robert J van Oostenbrugge, Aad van der Lugt, Diederik W J Dippel, Yvo B W E M Roos, Charles B L M Majoie, Henk A Marquering
BACKGROUND AND PURPOSE: Ischemic lesion volume (ILV) on noncontrast computed tomography at 1 week can be used as a secondary outcome measure in patients with acute ischemic stroke. Twenty-four-hour ILV on noncontrast computed tomography has greater availability and potentially allows earlier estimation of functional outcome. We aimed to assess lesion growth 24 hours after stroke onset and compare the associations of 24-hour and 1-week ILV with functional outcome. METHODS: We included 228 patients from MR CLEAN trial (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands), who received noncontrast computed tomography at 24-hour and 1-week follow-up on which ILV was measured...
March 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28345679/impact-of-climate-conditions-on-hospital-admissions-for-subcategories-of-cardiovascular-diseases
#16
Sanja Bijelović, Nataša Dragić, Milorad Bijelović, Mila Kovačević, Marija Jevtić, Olivera Ninkovic Mrđenovački
BACKGROUND: The aim of this study has been to examine the association between climate conditions (CC) and hospital admissions for the subcategories of cardiovascular diseases (CVD), according to patients' age. MATERIAL AND METHODS: From January 2010 through December 2011, the daily number of hospital admissions for angina pectoris (AP), essential hypertension (EH), acute myocardial infarction (AMI) and ischemic heart diseases (IHD) for adults (19-64 years old) and the elderly (≥ 65 years old), as well as for the CC (N = 728 days) was collected for multivariate Poisson regression analysis, confounding with season and weekends...
March 24, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28344614/do-we-need-invasive-confirmation-of-cardiac-magnetic-resonance-results
#17
Paweł Siastała, Jacek Kądziela, Łukasz A Małek, Mateusz Śpiewak, Katarzyna Lech, Adam Witkowski
INTRODUCTION: Coronary artery revascularization is indicated in patients with documented significant obstruction of coronary blood flow associated with a large area of myocardial ischemia and/or untreatable symptoms. There are a few invasive or noninvasive methods that can provide information about the functional results of coronary artery narrowing. The application of more than one method of ischemia detection in one patient to reevaluate the indications for revascularization is used in case of atypical or no symptoms and/or borderline stenosis...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28343216/susceptibility-weighted-imaging-identifies-iron-oxide-labeled-human-neural-stem-cells-automated-computational-detection
#18
Mohsen Baghchechi, Amy Plaia, Mary Hamer, Nirmalya Ghosh, Stephen Ashwal, Andre Obenaus
Neonatal hypoxic-ischemic brain injury (HII) can lead to devastating neurological outcomes such as cerebral palsy, epilepsy, and mental retardation. Human neural stem cell (hNSC) therapy provides new hope for the treatment of neonatal HII. These multipotent cells can aid in HII recovery by activating multiple reparative mechanisms including secretion of neurotrophic factors that enhance brain repair and plasticity. For clinical use of implanted hNSCs, methods are required to identify, quantify, track, and visualize migration and replication in an automated and reproducible fashion...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28341719/brain-perivascular-spaces-as-biomarkers-of-vascular-risk-results-from-the-northern-manhattan-study
#19
J Gutierrez, M S V Elkind, C Dong, M Di Tullio, T Rundek, R L Sacco, C B Wright
BACKGROUND AND PURPOSE: Dilated perivascular spaces in the brain are associated with greater arterial pulsatility. We hypothesized that perivascular spaces identify individuals at higher risk for systemic and cerebral vascular events. MATERIALS AND METHODS: Stroke-free participants in the population-based Northern Manhattan Study had brain MR imaging performed and were followed for myocardial infarction, any stroke, and death. Imaging analyses distinguished perivascular spaces from lesions presumably ischemic...
March 24, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28336740/towards-personalised-intra-arterial-treatment-of-patients-with-acute-ischaemic-stroke-a-study-protocol-for-development-and-validation-of-a-clinical-decision-aid
#20
Maxim J H L Mulder, Esmee Venema, Bob Roozenbeek, Joseph P Broderick, Sharon D Yeatts, Pooja Khatri, Olvert A Berkhemer, Yvo B W E M Roos, Charles B L M Majoie, Robert J van Oostenbrugge, Wim H van Zwam, Aad van der Lugt, Ewout W Steyerberg, Diederik W J Dippel, Hester F Lingsma
INTRODUCTION: Overall, intra-arterial treatment (IAT) proved to be beneficial in patients with acute ischaemic stroke due to a proximal occlusion in the anterior circulation. However, heterogeneity in treatment benefit may be relevant for personalised clinical decision-making. Our aim is to improve selection of patients for IAT by predicting individual treatment benefit or harm. METHODS AND ANALYSIS: We will use data collected in the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN) trial to analyse the effect of baseline characteristics on outcome and treatment effect...
March 22, 2017: BMJ Open
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