View clinical trials related to Carotid Stenosis.Filter by:
The purpose of this multiple-center study are: 1) To establish the ultrasound criteria for evaluating vulnerable plaques by comparing the plaque echo characteristics before CEA (carotid artery endarterectomy) and plaque specimen after CEA. 2) To establish the carotid artery recanalization strategies based on the evaluation results of carotid artery and intracranial artery by color doppler flow imaging and TCCS/TCD (transcranial color coded sonography/transcranial doppler). 3) To compare the success rate and the incidence of restenosis between CEA and carotid artery stenting.
Background and purpose. Even if periprocedural cerebral microembolism associated with carotid endarterectomy or stenting usually does not manifest as clinically overt stroke, neuropsychological disturbances resulting from these events represent an important clinical and socioeconomic problem. Still, it remains unclear whether the use proximal protection can lower the incidence of cerebral embolism associated with the treatment of carotid stenosis. Materials and methods. This was a prospective randomised single-centre study, which was aimed at comparison of surgical eversion endarterectomy with stenting under proximal protection in symptomatic patients. The investigators evaluated the incidence of new ischaemic lesions revealed by the diffusion-weighted magnetic resonance imaging 2-4 days after the treatment and neurologic events.
Determining whether we could visualize uptake of the fluorescent tracer Bevacizumab-800CW, targeting VEGF-A in atherosclerotic plaques by using the new imaging technique Multispectral Optoacoustic Tomography both in- and ex vivo.
Periodontal Disease (PD) is present in 60+% of adults >65 years and is associated with tobacco smoking, diabetes, and atherosclerosis that worsen inflammation, comorbidities common in older people with mild to moderate cognitive impairment (MCI). Older MCI patients are prone to poor oral hygiene and dental health, which if untreated worsens inflammation-mediated brain and nervous system function, and accelerates progression to dementia. Asymptomatic carotid artery stenosis (ACAS) is often a silent disease detected in only ~10% of older adults, and may have a strong association with MCI. This study examines the effects of intensive therapy for periodontitis on cognition in high-risk older people with ACAS. Results could highlight PD as a readily modifiable risk factor for dementia.
Endarterectomy vs Stenting Asymptomatic Carotid stenosis patients to verify the efficacy and safety.
The primary aim of this project is to assess if advanced ultrasound methods such as SMI (Superb microvascular Imaging) and SWE (Shear Wave Elastography) can identify intraplaque neovascularization and plaque tissue stiffness in carotid artery plaques and relate these results to ipsilateral cerebrovascular symptoms. The secondary aim of this project is to assess the level of agreement between the structural plaque characteristics assessed by advanced ultrasound examinations such as SMI, SWE, CEUS (Contrast enhanced ultrasound), GSM (Plaque gray-scale-median) and carotid MRI, metabolic activity of plaque assessed by 18F-FDG PET/CT with histology as the gold standard. Findings from the methods mentioned above will be related to cerebrovascular symptoms, blood tests (cholesterol-tot, LDL, HDL, CRP, leukocytes, glucose, HbA1c) and other cardiovascular risk factors at inclusion and upon 1 year follow up.
The results in carotid surgery are an indicator of the functioning of an academic surgical team, making it possible to evaluate and improve practices, as much among surgeons in training as among senior surgeons. The indications have evolved with the development of symptomatic stenosis surgery, and results analysis has allowed us to improve our practices. It would be of great use to have the statistics obtained in previous years to continue improving our practices.
Carotid endarterectomy is the operation for curing the significant carotid artery stenotic patients who are also at high cardiac risk. This retrospective study is to find out the incidence and risk factors related.
Reduced antiplatelet activity (low response (LR)/high on-treatment platelet reactivity (HPR)) of aspirin (ALR) or clopidogrel (CLR) is associated with an increased risk of thromboembolic events. The prevalence figures for low-responders reported in the literature vary widely and there have been few investigations in vascular surgery patients to date. The aim of this prospective monocentric study was to increase the evidence base on vascular surgery patients and to detect any changes in the response following vascular surgery procedures.
From our experience among Egyptian population in our institution, there is an increased prevalence of hidden subclinical peripheral artery disease along with carotid artery affection. Thus, increasing the risk of post-operative morbid complications.We aim to evaluate routine/ non-selective carotid and peripheral arterial screening in asymptomatic patients undergoing coronary artery bypass grafting in the Egyptian populationIt is a prospective, non-randomized, comparative study including two groups of patients. The study will start from the day of approval of the ethical committee. It will include 260 patients, on basis of "all new comers". Patients will be examined and classified as "high-risk" group (ɳ = 130) or "low-risk" group (ɳ=130). All patients will have the "routine" preoperative investigations along with evaluation of extracranial carotid system by non-invasive carotid duplex and lower limb arterial system by non-invasive bilateral lower limb arterial duplex.