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Condition: Thrombosis
Procedure: Ultrasound
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Total 256 results found since Jan 2013.
Stroke from an External Carotid: Lesion Pattern and Mechanisms
Traditionally, patients with symptomatic external carotid stenosis present with neck or face pain, retinal ischaemic symptoms or jaw claudication. and rarely as ipsilateral cerebrovascular events. In this present case, our patient suffered a stroke from a paradoxical embolism from the external carotid, without involvement of the internal carotid artery. A plaque ulceration of the external carotid’s origin was the cause of this cerebral emboli. Duplex ultrasound showed a pathological left external carotid, with a floating thrombus in the internal carotid.
Source: Annals of Vascular Surgery - January 20, 2016 Category: Surgery Authors: Kagan Nicolas, Lathelyse Hubert, Leclere Franck Marie, Marchand Etienne, Martinez Robert Source Type: research
In Vitro Evaluation of Focused Ultrasound-Enhanced TNK-Tissue Plasminogen Activator-Mediated Thrombolysis
The low and incomplete recanalization performance of thrombolytic therapy in patients with acute ischemic stroke has created the need to use focused ultrasound (FUS) energy as a way to enhance thrombolysis efficiency (sonothrombolysis). Using an in vitro flow model, the role of various parameters involved in FUS-enhanced tenecteplase (TNK-tPA [tissue plasminogen activator])-mediated thrombolysis was evaluated.
Source: Journal of Stroke and Cerebrovascular Diseases - May 1, 2016 Category: Neurology Authors: Nikolaos Papadopoulos, Christakis Damianou Source Type: research
The Enhancing Effect of Focused Ultrasound on TNK-Tissue Plasminogen Activator-Induced Thrombolysis Using an In Vitro Circulating Flow Model
The limited efficacy of thrombolytic therapy in patients with ischemic stroke has created the need to use focused ultrasound (FUS) energy as a way to enhance thrombolysis efficacy (sonothrombolysis). Using an in vitro circulating flow model, we evaluated the role of physical parameters on tenecteplase (TNK-tPA)-mediated thrombolysis.
Source: Journal of Stroke and Cerebrovascular Diseases - September 1, 2016 Category: Neurology Authors: Nicos Papadopoulos, Christos Yiallouras, Christakis Damianou Source Type: research
Cerebral microemboli detection for monitoring structural cardiac disease
This report demonstrates the presence of a major valvular thrombus not visualized on echocardiography, but detected by TCD microemboli detection.
Source: Neurology Clinical Practice - October 16, 2017 Category: Neurology Authors: Shafie, M., Song, S., Nezhad, M., Lamberti, J., Cocalis, M., Cavallaro, M., Rinsky, B., Lyden, P. Tags: Stroke prevention, Cardiac, Embolism, Infarction Case Source Type: research
Does the administration of sonothrombolysis along with tissue plasminogen activator improve outcomes in acute ischemic stroke? A systematic review and meta-analysis
AbstractThis meta-analysis was conducted to assess the safety and efficacy of sonothrombolysis along with intravenous recombinant tissue plasminogen activator, alteplase (IV rtPA), in the management of acute ischemic stroke. Electronic databases were searched under different meSH terms without the restriction of time and language. 1415 studies were analyzed and seven studies that matched the inclusion criteria were selected. Multiple safety and efficacy outcomes were extracted. Our pooled analysis demonstrated that there is no significant difference between sonothrombolysis group and control group in preventing mortality (...
Source: Journal of Thrombosis and Thrombolysis - June 29, 2019 Category: Hematology Source Type: research
Atypical presentation of fistula dysfunction due to brachial arterial embolization mimicking stroke
In this report, failure to recognize the upper limb ischemia would have led to delayed treatment, potentially resulting in the fistula's complete thrombosis and further limb ischemia. We highlight the importance of a diagnosis method like Doppler ultrasound, which allows for rapid evaluation at the patient's bedside.PMID:35000475 | DOI:10.1177/11297298211067686
Source: The Journal of Vascular Access - January 10, 2022 Category: Surgery Authors: Rita Vicente Laura Rodriguez Joaquim Vallesp ín Carolina Rubiella Jose Ibeas Source Type: research
Asymptomatic Carotid Stenosis Is Associated With Circadian and Other Variability in Embolus Detection
Conclusions: Embolism associated with asymptomatic carotid stenosis shows circadian variation with highest rates 4–6 h before midday. This corresponds with peak circadian incidence of stroke and other vascular complications. These and ASED Study results show that monitoring frequency, duration, and time of day are important in ES detection.
Introduction
Transcranial Doppler (TCD) detected microembolism in the ipsilateral middle cerebral artery (MCA) may help stratify the risk of stroke and other arterial disease complications in persons with advanced (≥60%) asymptomatic carotid stenosis. If so, this t...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research
Modern Treatment of Asymptomatic Carotid Stenosis —The Importance of Both Medical Therapy and Carotid Endarterectomy
Each year there are approximately 700 000 new ischemic strokes in the US, and 10% to 15% of them are caused by thromboembolism from a previously asymptomatic carotid stenosis (ACS). Three large randomized clinical trials, published in the 1990s and early 2000s, have demonstrated a significant benefit of carotid endarterectomy (CEA) i n preventing stroke in patients with severe ACS compared with medical therapy alone. They showed a 50% relative risk reduction in 5-year stroke rate and an approximately 1% per year absolute stroke risk reduction. Over the course of the past 2 decades, there has been significant improvement...
Source: JAMA Surgery - June 8, 2022 Category: Sports Medicine Source Type: research
Postoperative in-stent protrusion is an important predictor of perioperative ischemic complications after carotid artery stenting
Conclusions Postoperative ipsilateral stroke was observed more frequently in patients with demonstrated ISP following CAS.
Source: Journal of Neuroradiology - March 8, 2018 Category: Radiology Source Type: research
Carotid Artery Free-Floating Thrombus Caused by Paradoxical Embolization From Greater Saphenous Vein Ascending Thrombophlebitis
We report a case of a young woman without cardiovascular risk factors who was admitted to our emergency department with listlessness and altered mental status. The clinical examination revealed right lower limb swelling. Magnetic resonance imaging and contrast-enhanced computed tomographic scans revealed a free floating thrombus of the left internal carotid artery (ICA) with a large bilateral frontal ischemic lesion. The diagnosis of a medium-sized PFO with moderate right-to-left contrast shunting was made after transesophageal echocardiography. No other cardiac sources for embolization were detected, while an ascending th...
Source: Annals of Vascular Surgery - April 28, 2013 Category: Surgery Authors: Luigi Irace, Roberto Gabrielli, Maria Sofia Rosati, Maria Fabrizia Giannoni, Anna Castiglione, Antonella Laurito, Bruno Gossetti Tags: Case Report Abstracts Source Type: research
Should TCDs be routinely used for evaluating intracranial circulation for screening high risk patients prior to cardiac surgery? (P2.280)
CONCLUSIONS: Our case elucidates the possibility of a hypoperfusion stroke related to left vertebral dominantly supplying intracranial circulation in presence of bilateral significant carotid stenosis. Due to lack of previous cardio/cerebrovascular events, his carotid stenosis was deemed asymptomatic prior to cardiac surgery. We propose that intracranial collateral flow should be investigated via TCD in patients with bilateral carotid stenosis undergoing procedures with high stroke risk to assess safety and efficacy of carotid revascularization in this small but significant subset. Additional studies like acetazolamide wit...
Source: Neurology - April 8, 2015 Category: Neurology Authors: Vu, Q., Bishop, L., Edwards, M., Tegeler, C., Sarwal, A. Tags: Cerebrovascular Disease and Interventional Neurology: PFO and Other Cardiac Disease Source Type: research
