Active clinical trials for "Carotid Stenosis"

The goal of this clinical trail is to compare the differences in carotid plaque Treg cells' gene signature for activation, proliferation, and suppressive function using scRNA-seq in patients treated with IL-2 compared to control.

Atherosclerosis is the most common cause of stroke. The aims of the project are to compare the visual and digital analysis of sonographic images of atherosclerotic plaque in carotids in vivo, in vitro and with a histological composition of the plaque obtained from patients indicated to carotid endarterectomy, to compare the characteristics of symptomatic and asymptomatic atherosclerotic plaques and, subsequently to verify a hypothesis that ultrasound can identify the sonographic plaque characteristics associated with an increased risk of plaque progression and of ischemic stroke (unstable plaque) in patients with carotid atherosclerosis. Identifying of the sonographic characteristics of unstable plaque will allow to improve indication criteria for carotid endarterectomy or stenting and also potential changing of a drug therapy in patients with unstable plaque in the future. Cost efficiency and availability of duplex ultrasound equipment may enable to improve diagnosis of unstable plaque using this new plaque characteristics evaluation in the majority of patients with carotid plaques.

The purpose of this study is to evaluate the safety and efficacy of the TriActiv® ProGuard™ System when used during a stent placement in a blockage within the carotid artery in patients considered to be at high risk for complications from surgical endarterectomy.

The purpose of the present prospective, randomized, double-blind, double dummy controlled multicenter pilot study is to investigate whether abciximab, compared with aspirin, is able to reduce the rate of recurrent ischemic strokes before and during carotid endarterectomy [CEA] (primary endpoints); and the degree of carotid stenosis, number of microembolic signal (MES) counts, number of ischemic infarcts at diffusion weighted imaging (DWI) and amount of intraluminal thrombus at pathological examination (secondary endpoints) in patients with ischemic stroke due to a >50% carotid stenosis who will undergo CEA.

Patients with head and neck cancer who underwent irradiation have a higher risk of developing severe carotid stenosis, and eventually develop to transient ischemic attack or stroke. However, it's still not clear whether early intervene in vascular risk factors is benefit for patients after radiotherapy. Our study aimed to evaluate the feasibility and safety of atorvastatin for preventing NPC patients after radiotherapy from severe carotid stenosis. In a randomized, double-blind, placebo-controlled trial, about 324 nasopharyngeal carcinoma (NPC) patients will be enrolled from six centers in Guangdong Province and randomized 1:1 to atorvastatin group or placebo group.

Objectives: Primary: To evaluate the effect of rimonabant 20-mg once daily in comparison with placebo, on the quantitative progression of atherosclerosis as assessed by carotid artery intima-media thickness (CIMT) Secondary: To evaluate the safety and tolerability of the above rimonabant regimen in the study population of atherosclerosis patients.

Patients undergoing carotid revascularization procedures are at increased risk for the development of short- and long-term cardiac complications. Increased values of high-sensitive troponin may be useful in a timely selection of those patients. Still, contemporary literature doesn't provide enough data to answer the following questions: "Can high-sensitive troponin predict adverse cardiac outcomes perioperatively in carotid surgery?", "Should these cardiac biomarkers be routinely sampled in all patients undergoing carotid revascularization?" and "Can elevated levels of high-sensitive troponin preoperatively designate patients in whom the risk of surgical treatment (at a given moment) is greater than the benefit of the surgery?".

The purpose of this study is to determine, in patients undergoing carotid endarterectomy, the effect of ARC1779 Injection on the number of microembolic signals detected by transcranial Doppler immediately after surgery. This study will also evaluate the safety of ARC1779 Injection with respect to bleeding risk in patients in the peri-operative (during surgery) period.

The primary objective of the SONOMA Registry is to confirm the safety of the NexStent® Carotid Stent System and FilterWire EZ™ Embolic Protection System in routine clinical practice and to identify rare or unanticipated device-related events that might occur.

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.