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Condition: Thrombosis
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Total 708 results found since Jan 2013.

The Utility of Middle Cerebral Artery Clot Density and Burden Assessment by Noncontrast Computed Tomography in Acute Ischemic Stroke Patients Treated with Thrombolysis
Conclusions: Utility of the HMCAS as a prognostic marker in stroke thrombolysis is not high in the CT angiography era. Previous observation regarding its positive prognostic role can be attributed to its association with proximal location and extent of clot burden, which are detectable reliably with current CT angiography techniques. Neither quantification nor extent of increased density seems to have clinical utility for treatment decision making in MCA strokes and prediction of emboli composition and response to recanalization attempt.
Source: Journal of Stroke and Cerebrovascular Diseases - October 11, 2013 Category: Neurology Authors: Mehmet A. Topcuoglu, E. Murat Arsava, Oguzhan Kursun, Erhan Akpinar, Bulent Erbil Tags: Original Articles Source Type: research

Should minor stroke patients be thrombolyzed? A focused review and future directions
Stroke is a leading cause of morbidity and mortality worldwide. Up to 80% of ischemic stroke patients may initially present with minor symptoms. Minor stroke and transient ischemic attack patients are typically treated conservatively with antiplatelet agents and general vascular prevention strategies. Yet a high proportion develop recurrent stroke or progression of stroke and up to one in four of these patients are disabled or dead at follow‐up. Minor or rapidly improving symptoms are the top reasons for withholding thrombolytic therapy to time‐eligible stroke patients as they are believed to be ‘too good to treat’...
Source: International Journal of Stroke - December 25, 2014 Category: Neurology Authors: Amy Y. X. Yu, Michael D. Hill, Shelagh B. Coutts Tags: Review (invited) Source Type: research

Recurrent stroke in a patient with vitamin B12 deficiency and MTHFR mutation
We report an unusual case of recurrent stroke in a patient with vitamin B12 deficiency who was also homozygous for the methylene tetrahydrofolate reductase (MTHFR) gene mutation. The patient was a 35-year-old male vegetarian with no known medical history who initially presented with global aphasia, slurred speech, right facial weakness, and right-sided hemiplegia and was found to have a stroke (NIH Stroke Scale score of 25). At that time a CT scan of the head ruled out intracranial hemorrhage and a CT angiogram of the head and neck was done. The patient was found to have occlusion of the M1 segment of the left middle cereb...
Source: Neurology Clinical Practice - February 12, 2017 Category: Neurology Authors: Zacharia, G., Shani, D., Ortiz, R. A. Tags: Stroke in young adults, Stroke prevention, Hematologic, All Cerebrovascular disease/Stroke Case Source Type: research

Sensitivity and Specificity of the Hyperdense Artery Sign for Arterial Obstruction in Acute Ischemic Stroke Clinical Sciences
Conclusions— When present in acute ischemic stroke, HAS indicates a high likelihood of arterial obstruction, but its absence indicates only a 50/50 chance of normal arterial patency. Thin-slice CT improves sensitivity of HAS detection. Clinical Trial Registration— URL: http://www.controlled-trials.com/ISRCTN25765518. Unique identifier: ISRCTN25765518.
Source: Stroke - December 22, 2014 Category: Neurology Authors: Mair, G., Boyd, E. V., Chappell, F. M., von Kummer, R., Lindley, R. I., Sandercock, P., Wardlaw, J. M., IST-3 Collaborative Group Tags: Arterial thrombosis, Acute Cerebral Infarction, Angiography Clinical Sciences Source Type: research

Incidence of Venous Thromboembolism in the Wake of the Clots in Legs Or sTockings after Stroke (CLOTS) Study Brief Reports
Conclusions— Discontinuation of compressive stockings did not increase venous thromboembolism incidence. There was a trend toward more deep vein thrombosis and fewer PEs after CLOTS, which might be because of increased clinical vigilance in the diagnosis of deep vein thrombosis, but a chance variation cannot be excluded.
Source: Stroke - September 23, 2013 Category: Neurology Authors: Jain, P., Ward, E., Nevatte, T., Roffe, C. Tags: Deep vein thrombosis Brief Reports Source Type: research

Association Between Arterial Calcifications and Nonlacunar and Lacunar Ischemic Strokes Clinical Sciences
Conclusions— The only difference we found between nonlacunar and lacunar strokes was a higher calcification volume in the aortic arch in nonlacunar strokes. Our findings only partially confirm the notion of distinct etiologies and suggest that the potential role of other plaque components, plaque morphology, and aortic arch calcifications in ischemic stroke subtypes awaits further evaluation.
Source: Stroke - February 24, 2014 Category: Neurology Authors: van Dijk, A. C., Fonville, S., Zadi, T., van Hattem, A. M. G., Saiedie, G., Koudstaal, P. J., van der Lugt, A. Tags: Pathophysiology, Acute Stroke Syndromes Clinical Sciences Source Type: research

Early Magnetic Resonance Imaging Decreases Hospital Length of Stay in Patients with Ischemic Stroke
Imaging modalities are important part of stroke evaluation. Noncontrast head computed tomography (CT) is the initial imaging modality in acute stroke and although important to rule out acute hemorrhage and making a decision on thrombolytic treatment, ischemic changes may not be visible on CT for up to 24 hours. Magnetic resonance imaging (MRI) brain is an invaluable tool to confirm an ischemic stroke and facilitates stroke evaluation. Objective of this study was to investigate the correlation between time to MRI and length of hospital stay.
Source: Journal of Stroke and Cerebrovascular Diseases - November 3, 2018 Category: Neurology Authors: Bharti Manwani, Subhendu Rath, Nora S. Lee, Ilene Staff, Christoph Stretz, Janhavi Modak, Pasquale F. Finelli Source Type: research

Predictive Factors for Early Clinical Improvement after Intra-arterial Thrombolytic Therapy in Acute Ischemic Stroke
This study aimed to identify clinical and radiological variables that are predictive of early improvement (EI) after IAT in acute ischemic stroke.Methods: This single-center retrospective cohort study included 141 consecutive patients who underwent IAT for terminal internal carotid and/or middle cerebral artery (MCA) occlusions. EI was defined as a National Institutes of Health Stroke Scale (NIHSS) score less than 3 or NIHSS score improvement of 8 points or more within 72 hours of IAT. The EI and non-EI groups were compared in terms of clinical and radiological findings before and after IAT.Results: Forty-nine patients sh...
Source: Journal of Stroke and Cerebrovascular Diseases - February 14, 2014 Category: Neurology Authors: Hye Seon Jeong, Hyun-Jo Kwon, Chang Woo Kang, Hee-Jung Song, Hyeon Song Koh, Sang Min Park, Jung Geol Lim, Ji Eun Shin, Suk Hoon Lee, Jei Kim Tags: Original Articles Source Type: research

Ischemic Stroke in Evolution: Predictive Value of Perfusion Computed Tomography
Background: Various perfusion computed tomography (PCT) parameters have been used to identify tissue at risk of infarction in the setting of acute stroke. The purpose of this study was to examine predictive value of the PCT parameters commonly used in clinical practice to define ischemic penumbra. The patient selection criterion aimed to exclude the effect of thrombolysis from the imaging data.Methods: Consecutive acute stroke patients were screened and a total of 18 patients who initially underwent PCT and CT angiogram (CTA) on presentation but did not qualify to receive thrombolytic therapy were selected. The PCT images ...
Source: Journal of Stroke and Cerebrovascular Diseases - August 19, 2013 Category: Neurology Authors: Amir Kheradmand, Marc Fisher, David Paydarfar Tags: Original Articles Source Type: research

Imaging of occlusive thrombi in acute ischemic stroke
Thrombi, or clots, often occlude proximal segments of the cerebral arterial circulation in acute ischemic stroke. Thromboembolic occlusion or thrombi superimposed on atherosclerotic plaque are the principal focus of acute stroke therapies such as thrombolysis or thrombectomy. We review the imaging characteristics of thrombi on multimodal computed tomography and magnetic resonance imaging, angiography, and ultrasonography, summarizing recent studies that facilitate therapeutic decision‐making from these noninvasive studies. Information about the location, size, and imaging characteristics can be ascertained using these te...
Source: International Journal of Stroke - December 26, 2014 Category: Neurology Authors: Gregory G. Gasparian, Nerses Sanossian, Mark S. Shiroishi, David S. Liebeskind Tags: Review Source Type: research

Time-Dependent Thrombus Resolution After Tissue-Type Plasminogen Activator in Patients With Stroke and Mice Clinical Sciences
Conclusions— Early administration of tPA after stroke onset is associated with better thrombus resolution.
Source: Stroke - June 22, 2015 Category: Neurology Authors: Kim, Y. D., Nam, H. S., Kim, S. H., Kim, E. Y., Song, D., Kwon, I., Yang, S.-H., Lee, K., Yoo, J., Lee, H. S., Heo, J. H. Tags: Arterial thrombosis, Acute Cerebral Infarction, Thrombolysis Clinical Sciences Source Type: research

Time to ct scan imaging after symptom onset among ischeamic stroke patients presenting to a quaternary hospital in ghana
This study sought to determine the time of onset of symptoms to the time a CT imaging was done among patients presenting with acute stroke at the Korle-Bu Teaching Hospital.
Source: Journal of Stroke and Cerebrovascular Diseases - March 30, 2023 Category: Neurology Authors: F. Duodu, D. Brodie Mends, B. Agbinko-Djobalar, P. Pekyi-Boateng, M. Amerwornu, P Adjei, A Akpalu, K Nkromah Source Type: research

Is Door-to-Needle Time Reduced for Emergency Medical Services Transported Stroke Patients Routed Directly to the Computed Tomography Scanner on Emergency Department Arrival?
A nationally recommended practice to accelerate thrombolytic therapy for acute ischemic stroke is to route emergency medical services (EMS)-transported stroke patients directly to the computed tomography (CT) scanner on arrival. We evaluated door-to-needle time with direct-to-CT routing versus emergency department (ED)-bed first routing.
Source: Journal of Stroke and Cerebrovascular Diseases - November 3, 2019 Category: Neurology Authors: Bryan Sloane, Nichole Bosson, Nerses Sanossian, Jeffrey L. Saver, Lorrie Perez, Marianne Gausche-Hill Source Type: research

Recurrent Ischemic Stroke in a Patient with the Trousseau Syndrome Treated with Dabigatran
A 70-year-old man with multiple ischemic strokes was diagnosed with cardiac embolism and treated with dabigatran. Three months later, he suddenly developed vertigo and vomiting. Magnetic resonance imaging, showed recurrent lesions and blood tests revealed hypercoagulability, hypoproteinemia, and elevated cytokeratin 19 fragments that serve as a tumor marker of lung cancer. Chest computed tomography showed there were small nodules in bilateral lungs and swollen mediastinal lymph nodes. A conclusive diagnosis was impossible because the patient declined invasive procedures. We suspected primary lung cancer and diagnosed conco...
Source: Journal of Stroke and Cerebrovascular Diseases - February 21, 2014 Category: Neurology Authors: Kosuke Yoshida, Takashi Kimura, Yoko Aburakawa, Yasuhiro Suzuki, Kenji Kuroda, Osamu Yahara Tags: Case Reports Source Type: research

Demographic and Clinical Predictors of Leptomeningeal Collaterals in Stroke Patients
Background: Leptomeningeal collaterals improve outcome after stroke, including reduction of hemorrhagic complications after thrombolytic or endovascular therapy, smaller infarct size, and reduction in symptoms at follow-up evaluation. The purpose of this study was to determine the demographic and clinical variables that are associated with a greater degree of cerebral collaterals.Methods: Clinical data of patients presenting with M1 occlusions of the middle cerebral artery (MCA) and associated computed tomography angiography studies after admission from 3 separate institutions were retrospectively compiled (n = 82). Occl...
Source: Journal of Stroke and Cerebrovascular Diseases - August 4, 2014 Category: Neurology Authors: Nitin Malik, Qinghua Hou, Achala Vagal, James Patrie, Wenjun Xin, Patrik Michel, Ashraf Eskandari, Tudor Jovin, Max Wintermark Tags: Original Articles Source Type: research