Search results for "Artery"

Relationship of a Body Shape Index and Body Roundness Index with carotid atherosclerosis in arterial hypertension.

2018

Background and aims: A Body Shape Index (ABSI) and Body Roundness Index (BRI) are two new anthropometric adiposity indices that have shown to be associated better than BMI with adipose abdominal tissue, with the onset of diabetes and the risk of premature death. Little is known about the influence of ABSI and BRI on subclinical vascular damage. The study was aimed to assess the relationship between ABSI and BRI with carotid atherosclerosis damage in subjects with arterial hypertension. Methods and results: A total of 468 patients with arterial hypertension (30–80 years old) were enrolled; adiposity indices were calculated (BMI, WC, ABSI, BRI) and carotid ultrasonographic examination was per…

Renal haemodynamics and severity of carotid atherosclerosis in hypertensive patients with and without impaired renal function.

2014

Background and Aim. Renal resistance index (RRI), assessed by Duplex-Doppler sonography, has been classically considered as a mere expression of intrarenal vascular resistance. Recent studies, however, have showed that RRI is also influenced by upstream factors, especially arterial compliance, confirming its possible role as a marker of systemic vascular alterations. Several studies have shown that carotid intima-media thickness (cIMT) and carotid plaques (cP), assessed by ultrasonography, are documented markers of subclinical organ damage as well as expression of progressive atherosclerotic disease, and that they get worse with the progressive deterioration of renal function. The study was…

Carotid Atherosclerosis Evolution When Targeting a Low-Density Lipoprotein Cholesterol Concentration70 mg/dL After an Ischemic Stroke of Atherosclero…

2020

Background: The TST trial (Treat Stroke to Target) showed the benefit of targeting a low-density lipoprotein cholesterol (LDL-C) concentration of <70 mg/dL in terms of reducing the risk of major cardiovascular events in 2860 patients with ischemic stroke with atherosclerotic stenosis of cerebral vasculature. The impact on carotid atherosclerosis evolution is not known. Methods: TST-PLUS (Treat Stroke to Target–Plaque Ultrasound Study) included 201 patients assigned to an LDL-C concentration of <70 mg/dL and 212 patients assigned to a target of 100±10 mg/dL. To achieve these goals, investigators used the statin and dosage of their choice and added ezetimibe as needed. Ultrasonographer…

Association between multiple biomarkers and classical risk factors with early carotid atherosclerosis

2013

Prediction of cardiovascular events with traditional risk equations and total plaque area of carotid atherosclerosis

2021

Abstract A large number of cardiovascular events occur in seemingly healthy individuals. Atherosclerosis imaging can improve the outcome and treatment regime of such subjects. We aim to assess the predictive value of atherosclerosis imaging beyond traditional risk calculators in subjects aged 40–65 years. We compared PROCAM, SCORE and FRAM with carotid ultrasound (total plaque area, TPA) and arterial age (AA) was calculated in subjects without known cardiovascular diseases. Follow-up was obtained by phone or mail. In 2842 subjects (age 50 ± 8, 38% women) 154 (5.4%) cardiovascular events occurred (ASCVD: 41 myocardial infarctions, 16 strokes or TIA, 21 CABG, 41 PTCA, 35 coronary artery disea…

Integrated non-invasive approach to atherosclerosis with cardiac CT and carotid ultrasound in patients with suspected coronary artery disease

2017

The aim of the study was to compare the atherosclerotic disease in the coronary and carotid arteries in patients who underwent non-invasive imaging for suspected stable coronary artery disease (CAD). 107 patients (64 men, age 59 ± 12) with atypical chest pain underwent cardiac CT (CCT) and carotid ultrasound (US) on the same day. Severity (obstructive or not-obstructive disease), location, shape, and composition of atherosclerotic plaques in the two districts were evaluated. Patients presented normal coronary arteries in 36 % (n = 38), not-obstructive CAD in 36 % (n = 39), and obstructive CAD in 28 % (n = 30), while had normal carotid arteries in 53 % (n = 57), not-obstructive disease in 44…

Alcohol-Mediated Renal Sympathetic Neurolysis for the Treatment of Hypertension: The Peregrine™ Infusion Catheter.

2020

Renal sympathetic denervation using conventional non-irrigated radiofrequency catheters has potential technical shortcomings, including limited penetration depth and incomplete circumferential nerve damage, potentially impacting therapeutic efficacy. Against this background, second generation multi-electrode, radiofrequency and ultrasound renal denervation systems have been developed to provide more consistent circumferential nerve ablation. Irrigated catheters may allow deeper penetration while minimizing arterial injury. In this context, catheter-based chemical denervation, with selective infusion of alcohol, a potent neurolytic agent, into the perivascular space, may minimize endothelial…

Necessary Catheter Diameters for Mechanical Thrombectomy with ADAPT

2017

BACKGROUND AND PURPOSE: Large-bore catheters allow mechanical thrombectomy in ischemic stroke by engaging and retrieving clots without additional devices (direct aspiration first-pass technique [ADAPT]). The purpose of this study was to establish a model for minimal catheter diameters needed for ADAPT. MATERIALS AND METHODS: We established a theoretic model for the calculation of minimal catheter diameters needed for ADAPT. We then verified its validity in 28 ADAPT maneuvers in a porcine in vivo model. To account for different mechanical thrombectomy techniques, we factored in ADAPT with/without a hypothetic 0.021-inch microcatheter or 0.014-inch microwire inside the lumen of the aspiration…

Should Treatment of Sepsis Include Statins?

2005

During the past decade, HMG-CoA reductase inhibitors (statins) have been shown to improve survival in patients with cardiovascular disease. Initially, the beneficial effects of statins were attributed simply to lipid reduction1; however, more recent data suggest that “pleiotropic” properties such as improvement of endothelial dysfunction, increased nitric oxide bioavailability, and antioxidative and antiinflammatory properties may contribute to the improvement of prognosis in patients with coronary artery disease. Many of these pleiotropic effects of statins are mediated by the ability to block the synthesis of important isoprenoid intermediates, which have been shown to serve as lipid atta…

Monocyte-derived dendritic cells of patients with coronary artery disease show an increased expression of costimulatory molecules CD40, CD80 and CD86…

2007

Background Atherosclerosis is a disease triggered by diverse exogenous stimuli and sustained by chronic inflammatory processes. Dendritic cells (DCs) are key regulatory antigen-presenting cells and play a crucial role in regulating the adaptive and innate immune system in any chronic inflammatory process. DCs are present in atherosclerotic lesions in the areas of the highest T-cell density. So far, their role in atherosclerosis has not been fully elucidated. We investigated the phenotypic properties of DCs in patients with coronary artery disease (CAD) in comparison to healthy individuals. Methods Peripheral blood monocytes were isolated from 50 patients with CAD and 19 healthy individuals …