Search results for "Carotid"
showing 10 items of 424 documents
Leukocyte subtypes, gelatinases, and their tissue inhibitors in a group of subjects with asymptomatic carotid atherosclerosis
2022
In a cohort of subjects with asymptomatic carotid atherosclerosis (ACA), we have evaluated the neutrophil and lymphocyte count and their ratio (NLR), the gelatinases (MMP-2 and MMP-9) and their tissue inhibitors (TIMP-1 and TIMP-2). At baseline, no difference was observed between ACA subjects and subject control group regarding neutrophil and lymphocyte count while was evident in ACA subjects a significant increase in MMP-2, MMP-9 and TIMP-2 associated to a significant decrease in TIMP-1. Dividing the ACA according to the number of cardiovascular risk factors (CRFs) we have observed an increase in lymphocyte count in the subgroup with 3–5 CRFs. Evaluating the leukocyte subtypes according to…
An evaluation of coronary atherosclerosis using coronary CT in subjects with asymptomatic carotid lesions
2014
The evaluation of coronary lesions in patients with asymptomatic carotid plaque represents a very promising line of research to assess cardiovascular risk and the possible implementation of a more aggressive prevention therapy. METHODS: In this study we enrolled 102 patients with intermediate to high cardiovascular risk but no history of coronary artery disease. The first group, consisting of 51 patients, underwent a Coronary CT scan (CCT-group) as well as carotid ultrasonography. The second group, also consisting of 51 patients, underwent coronary angiography (CA) and carotid ultrasonography. RESULTS: The absence of a statistically significant difference between the involvement of both cor…
External stenting with a new polyester mesh reduces neointimal hyperplasia of vein grafts in a sheep model.
2007
Objective External stents placed around vein grafts have demonstrated effectiveness in reducing neointimal hyperplasia by preventing distension of the thin-walled vein grafts when exposed to arterial pressure. However, the ideal stent material has yet to be defined. The following study investigates the short- and long-term effects of an innovative polyester mesh stent designed with optimized adaptation of circumferential compliance. Methods Following in vitro definition of the ideal macro-porous polyester stent material, a total of 12 sheep underwent implantation of bilateral carotid artery vein graft bypasses. In six sheep, the short-term outcome (four weeks of implantation) was investigat…
Association of elevated fibrinogen and C-reactive protein levels with carotid lesions in patients with newly diagnosed hypertension or type II diabet…
2006
BACKGROUND: Inflammation may be important for accelerated progression of atherosclerosis in patients with hypertension or diabetes, but few studies included subjects with early stages of atherosclerosis such as those with asymptomatic carotid lesions. METHODS: We studied 100 patients with newly diagnosed hypertension and another 100 patients with newly diagnosed type II diabetes to evaluate in such groups the association of two markers of inflammation, fibrinogen and C-reactive protein (CRP), with carotid atherosclerosis, beyond traditional cardiovascular risk factors (e.g., older age, male gender, obesity, smoking, family history of CAD, dyslipidemia). RESULTS: We found positive correlatio…
Non-coronary atherosclerosis
2014
International audience; During the last decades, the clinical and research interest in atherosclerosis has been mostly focused on coronary arteries. After the publications of the European Society Guidelines and AHA/ACC Guidelines on Peripheral artery diseases, and of the Registry REduction in Atherothrombosis for Continued Health Registry, there has been an increased interest in atherosclerosis of the lower extremity arteries and its presence in multifocal disease. However, awareness in the general population and the medical community of non-coronary artery diseases, and of its major prognostic implications remain relatively low. The aim of this general review stemming out of an ESC Working…
Electrocardiographic abnormalities, preclinical carotid atherosclerosis and cardiovascular risk in an apparently healthy real-world population. Data …
2021
Background: Cardiovascular diseases (CVDs) represent important causes of morbidity and mortality. Our study aimed to evaluate cardiovascular risk using the EuroSCORE, ECG and carotid ultrasound for prevention purpose in a population of companions aged 50-70 years, asymptomatic and without CVD. Methods: History of CVD, risk factors (RF), ECG and carotid ultrasound were evaluated. Intima-media thickness (IMT) was defined as wall thickness >0.9 mm, while focal thickening ≥1.5 mm protruding into the lumen as asymptomatic carotid plaque (ACP). Results: Totally, 1860 subjects were screened. 393 (21.1%) had no RF, 780 (42%) hypertension, 571 (30.7%) hypercholesterolemia, 557 (29.9%) diabetes, 4…
Markers of inflammation are strong predictors of subclinical and clinical atherosclerosis in women with hypertension
2008
Cardiovascular diseases in women still rises and remains their leading cause of death in most developed countries; yet we have less sex-specific data in women than in men as a result of lower enrollment in clinical trials and low rates of sex-specific reporting. The aim of our study was to evaluate in hypertensive postmenopausal women the potential predictive role of markers of inflammation, for example, fibrinogen and C-reactive protein (CRP), on subclinical and clinical atherosclerosis, beyond that of the other established cardiovascular risk factors. We studied 127 asymptomatic hypertensive postmenopausal women with different degrees of carotid intima–media thickness, as examined by the …
Ultrasonography for evaluation of the carotid artery in head and neck cancer.
1994
The dynamic relationship of lymph node metastases to surrounding vascular structures in the neck is important for preoperative patient assessment. When carotid artery involvement is suspected, this relationship often determines whether or not to operate. In the case of adhesive neck metastases along the internal jugular vein, it becomes possible to predict preoperatively if the integrity of this vein may be preserved. Ultrasonography has the ability to differentiate subtle from gross adherence, or simple compression from vascular invasion. This is done by manually palpating the tumor mass and asking the patient to perform various maneuvers while observing on a monitor the relationship of th…
Nonalcoholic Fatty Liver Disease, Cardiovascular Risk, and Carotid Inflammation.
2015
Nonalcoholic fatty liver disease (NAFLD) is defined by excessive triglycerides (TGs) accumulation in the liver (>5% of hepatocytes histologically) in the absence of alcohol excess. The NAFLD ranges from simple steatosis to steatohepatitis and cirrhosis. The NAFLD and nonalcoholic steatohepatitis (NASH) are now the number one cause of liver disease in Western countries. The prevalence of NAFLD is increasing but is underreported, and the epidemiology and demographic characteristics vary worldwide. The prevalence is increasing because of the rising occurrence of obesity and type 2 diabetes (T2DM); in fact, NAFLD is considered as the hepatic manifestation of metabolic syndrome (MetS). Nonalcoho…
Expression of p11 and TASK1 Channels in Rat Carotid Body Glomus Cells Subjected to Chronic Intermittent Hypoxia
2022
Chronic intermittent hypoxia (CIH) has been used as a model to mimic nocturnal apnea, which is associated with hypertension. One of the mechanisms for hypertension in patients with nocturnal apnea is an enhancement of the plasma membrane response to acute hypoxia in carotid body glomus cells. Hypoxia is known to induce depolarization via inhibiting TWIK-related acid-sensitive K+ (TASK) channels, one type of leak K+ channels, in glomus cells. The present experiment was undertaken to immunocytochemically investigate the effects of CIH on the expression and intracellular localization of TASK1 channels and p11 that critically affect the trafficking of TASK1 to the cell surface. The expression l…