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Specialty: Neurology
Procedure: Angiography

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Total 2194 results found since Jan 2013.

Vascular Anatomy Predicts the Risk of Cerebral Ischemia in Patients Randomized to Carotid Stenting Versus Endarterectomy Clinical Sciences
Background and Purpose—Complex vascular anatomy might increase the risk of procedural stroke during carotid artery stenting (CAS). Randomized controlled trial evidence that vascular anatomy should inform the choice between CAS and carotid endarterectomy (CEA) has been lacking.Methods—One-hundred eighty-four patients with symptomatic internal carotid artery stenosis who were randomly assigned to CAS or CEA in the ICSS (International Carotid Stenting Study) underwent magnetic resonance (n=126) or computed tomographic angiography (n=58) at baseline and brain magnetic resonance imaging before and after treatment. We invest...
Source: Stroke - April 24, 2017 Category: Neurology Authors: Mandy D. Muller, Frank J. Ahlhelm, Alexander von Hessling, David Doig, Paul J. Nederkoorn, Sumaira Macdonald, Philippe A. Lyrer, Aad van der Lugt, Jeroen Hendrikse, Christoph Stippich, H. Bart van der Worp, Toby Richards, Martin M. Brown, Stefan T. Engelt Tags: Magnetic Resonance Imaging (MRI), Revascularization, Stent, Cerebrovascular Disease/Stroke, Stenosis Original Contributions Source Type: research

Dose-Dependent Effect of Statin Pretreatment on Preventing the Periprocedural Complications of Carotid Artery Stenting Clinical Sciences
Background and Purpose—We investigated whether statin pretreatment can dose dependently reduce periprocedural complications in patients undergoing carotid artery stenting because of symptomatic carotid artery stenosis.Methods—We enrolled a consecutive series of 397 symptomatic carotid artery stenosis (≥50% stenosis on conventional angiography) treated with carotid artery stenting at 2 tertiary university hospitals over a decade. Definition of periprocedural complications included any stroke, myocardial infarction, and death within 1 month after or during the procedure. Statin pretreatment was divided into 3 categorie...
Source: Stroke - June 26, 2017 Category: Neurology Authors: Jeong-Ho Hong, Sung-Il Sohn, Jaehyuk Kwak, Joonsang Yoo, Hyuk Won Chang, O-Ki Kwon, Cheolkyu Jung, Inyoung Chung, Hee-Joon Bae, Ji Sung Lee, Moon-Ku Han Tags: Stent, Ischemic Stroke Original Contributions Source Type: research

Tenecteplase in ischemic stroke offers improved recanalization: Analysis of 2 trials
Conclusions: Tenecteplase may offer greater recanalization efficacy compared to alteplase, possibly exaggerated in patients with complete vessel occlusions on baseline CTA.
Source: Neurology - July 3, 2017 Category: Neurology Authors: Bivard, A., Huang, X., Levi, C. R., Spratt, N., Campbell, B. C. V., Cheripelli, B. K., Kalladka, D., Moreton, F. C., Ford, I., Bladin, C. F., Davis, S. M., Donnan, G. A., Muir, K. W., Parsons, M. W. Tags: CT, MRI, All Cerebrovascular disease/Stroke, Infarction ARTICLE Source Type: research

Angiographic Microcirculatory Obstructions Distal to Occlusion Signify Poor Outcome after Endovascular Treatment for Acute Ischemic Stroke
In this study, we retrospectively evaluated presence of contrast stasis and absence of capillary blush on angiograms obtained by selective injections into the distal site of occlusive thrombi, prior to deployment of stentrievers, in patients undergoing endovascular treatment for acute MCA occlusion. The role of this novel angiographic strategy assessing distal antegrade flow in predicting procedural and clinical outcome was compared to previously defined, prognostic angiographic characteristics. A total of 7 (21%) out of 34 patients had contrast stasis and lack of capillary blush downstream to the injection site. None of t...
Source: Translational Stroke Research - August 19, 2017 Category: Neurology Source Type: research

An Acute Ischemic Stroke Resulting from Aortic Dissection
A 39-year-old man with syncope and persistent dizziness was sent to stroke emergency. Patient's diffusion magnetic resonance imaging of brain showed acute ischemia in right cerebella and right occipital lobe, thus intravenous recombinant tissue plasminogen activator was given to him. However, the patient behaved rather restless with repeated complaint of back and thoracic pain. Further thorax computed tomography angiography confirmed that the underlying cause turned out to be aortic dissection.
Source: Journal of Stroke and Cerebrovascular Diseases - September 19, 2017 Category: Neurology Authors: Zijun He, Chun-sen Shen, Bin Wang, Yongchun Luo Tags: Case Studies Source Type: research

Radiographic and Clinical Brain Infarcts in Cardiac and Diagnostic Procedures Clinical Sciences
Conclusions—One of 10 people with periprocedural RBIs during cardiac surgeries and invasive vascular diagnostic procedures resulted in strokes or transient ischemic attacks, which may serve as a potential surrogate marker of procedural proficiency and perhaps as a predictor of risk for periprocedural strokes.
Source: Stroke - September 25, 2017 Category: Neurology Authors: Sung-Min Cho, Abhishek Deshpande, Vinay Pasupuleti, Adrian V. Hernandez, Ken Uchino Tags: Magnetic Resonance Imaging (MRI), Cerebrovascular Disease/Stroke Original Contributions Source Type: research

The Relation between Blood Count Parameters and Stroke in Patients with Intermediate Carotid Artery Stenosis
K öklü et al1 evaluated the correlation between blood count parameters, including the total white blood cell count (WBC), total neutrophil count, lymphocyte count, and neutrophil-to-lymphocyte ratio (NLR), and the risk of stroke in patients with intermediate carotid artery stenosis. They stated tha t an increased NLR value is an independent variable for carotid artery plaques to become symptomatic using the hemostatic parameters, carotid artery Doppler ultrasonography, and followed by computed tomography angiography.
Source: Journal of Stroke and Cerebrovascular Diseases - December 6, 2017 Category: Neurology Authors: Feyzullah Besli, Ozcan Kocaturk, Mehtap Kocaturk Tags: Letter to the Editor Source Type: research

Histology of Thrombectomy Specimen Reveals Cardiac Tumor Embolus in Cryptogenic Young Stroke
A 25-year-old woman presented with acute onset of right hemiplegia and global aphasia with National Institutes of Health Stroke Scale score of 19. Computed tomography angiography demonstrated occlusion of the left proximal middle cerebral artery. She was thrombolysed with intravenous recombinant tissue plasminogen activator (0.6  mg/kg) within 3 hours of onset of symptoms and was taken up for mechanical thrombectomy. The retrieved specimen appeared pale white and soft; histopathologic examination revealed a papillary neoplasm composed of papillae with hyalinized cores lined by endothelium, consistent with papillary fibro...
Source: Journal of Stroke and Cerebrovascular Diseases - December 12, 2017 Category: Neurology Authors: Kizhakkaniyakath Abdu Salam, Mohammed Rafeeque, Hisham Hashim, Neena Mampilly, Mohan Leslie Noone Tags: Case Studies Source Type: research

Multivessel Occlusion in Patients Subjected to Thrombectomy Clinical Sciences
Background and Purpose—Patients with embolic large-vessel occlusion may present with additional coincidental acute occlusions within or distant from the involved territory, referred to as multivessel occlusion (MVO). Purpose of this study was to assess prevalence of MVO, associated factors, and clinical relevance in patients undergoing endovascular stroke treatment.Methods—Image data of consecutive endovascular candidates (n=720) with direct access to angiography were extracted from a prospective registry. Prevalence of MVO was assessed with multimodal magnetic resonance imaging/computed tomography and confirmed by int...
Source: Stroke - May 25, 2018 Category: Neurology Authors: Johannes Kaesmacher, Pascal J. Mosimann, Mattia Giarrusso, Marwan El-Koussy, Felix Zibold, Eike Piechowiak, Tomas Dobrocky, Raphael Meier, Simon Jung, Sebastian Bellwald, Marcel Arnold, Pasquale Mordasini, Urs Fischer, Jan Gralla Tags: Cerebrovascular Procedures, Ischemic Stroke Original Contributions Source Type: research

The Prognostic Value of CT-Angiographic Parameters After Reperfusion Therapy in Acute Ischemic Stroke Patients With Internal Carotid Artery Terminus Occlusion: Leptomeningeal Collateral Status and Clot Burden Score
The objective of this study was to investigate the prognostic value of computed tomographic angiography (CTA) based on leptomeningeal collateral (LMC) status and other parameters in acute ischemic stroke (AIS) patients with internal carotid artery (ICA) terminus occlusion treated with endovascular treatment (EVT).
Source: Journal of Stroke and Cerebrovascular Diseases - July 28, 2018 Category: Neurology Authors: Jung-Soo Park, Hyo-Sung Kwak, Gyung Ho Chung, Seungbae Hwang Source Type: research

Angiographic Blush after Mechanical Thrombectomy is Associated with Hemorrhagic Transformation of Ischemic Stroke
Risk factors for hemorrhagic transformation of ischemic stroke after mechanical thrombectomy (MT) are not well established. We conducted a study to determine if prominent angiographic cerebral vascularity following recanalization with thrombectomy (angiographic blush) is associated with hemorrhagic transformation.
Source: Journal of Stroke and Cerebrovascular Diseases - August 6, 2018 Category: Neurology Authors: Setareh Salehi Omran, Srikanth Reddy Boddu, Aaron M. Gusdon, Benjamin Kummer, Hediyeh Baradaran, Praneil Patel, Iv án Díaz, Babak B. Navi, Ajay Gupta, Hooman Kamel, Athos Patsalides Source Type: research

Association between Extracranial Carotid Artery Tortuosity and Clinical Outcomes in Anterior Circulation Acute Ischemic Stroke without Undergoing Endovascular Treatment
Background: Extracranial carotid artery (ECA) tortuosity may influences successful recanalization rates of mechanical thrombectomy in acute ischemic stroke (AIS), yet the relationship between ECA tortuosity and the prognosis of patients with anterior circulation AIS who cannot undergo endovascular treatment remains uncertain. We hypothesized that increased tortuosity of the ECA leads to unfavorable outcomes in such patients. Methods: Patients with anterior circulation AIS who underwent computed tomography angiography of the head and neck in our hospital between March 2018 and November 2018 were retrospectively analyzed.
Source: Journal of Stroke and Cerebrovascular Diseases - November 26, 2019 Category: Neurology Authors: Ge Jin, Qi Li, Peng Zheng, Du Cao, Dan Zhu, Dezhi Zou, Fajin Lv, Yiqing Shen, Qunling Zhan, Peng Xie Source Type: research

Safety and Effectiveness of Mechanical Thrombectomy for Acute Ischemic Stroke Using Single Plane Angiography
Multiple randomized controlled trials have demonstrated the benefits of mechanical thrombectomy in patients with acute ischemic stroke (AIS) due to emergent large vessel occlusion (ELVO).1,2 These trials, and nearly all clinical data, are based on procedures performed on biplane (BP) angiography systems. The use of simultaneous orthogonal projections of the neurovascular anatomy intuitively facilitates endovascular navigation and reduces the risk of complications compared to those procedures performed on single plane (SP) systems.
Source: Journal of Stroke and Cerebrovascular Diseases - June 8, 2022 Category: Neurology Authors: Krishna Amuluru, Jimmy Nguyen, Fawaz Al-Mufti, Andrew Denardo, John Scott, Dileep Yavagal, Daniel H. Sahlein Source Type: research

Left atrial appendage thrombus in acute stroke: diagnostic accuracy of CT angiography compared to transesophageal echocardiography
To evaluate the value of an extended emergency computed tomography angiography (CTA) including cardiac imaging in patients with acute ischemic stroke for the detection of left atrial appendage (LAA) thrombus compared to transesophageal echocardiography (TEE) as a reference standard.
Source: Journal of Stroke and Cerebrovascular Diseases - December 13, 2022 Category: Neurology Authors: Jo ão Pinho, Laurien Dhaenens, Jan Heckelmann, Manuel Dafotakis, Rebecca May, Martin Wiesmann, Jörg Bernhard Schulz, Oliver Matz Source Type: research

Stroke Dysbiosis Index (SDI) in Gut Microbiome Are Associated With Brain Injury and Prognosis of Stroke
Conclusions: We developed an index to measure gut microbiota dysbiosis in stroke patients; this index was significantly correlated with patients' outcome and was causally related to outcome in a mouse model of stroke. Our model facilitates the potential clinical application of gut microbiota data in stroke and adds quantitative evidence linking the gut microbiota to stroke. Introduction Ischemic stroke imposes a heavy burden on society, with 24.9 million cases worldwide (1). Although intravenous thrombolysis and endovascular treatment greatly improve some patients' prognosis, the prognosis for most pa...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research