View clinical trials related to Coronary Atherosclerosis.
Filter by:The purpose of this research study is to determine if the infusion of a combination of stem cells obtained from the bone marrow of the same patient will contribute to the formation of new blood vessels in patients with symptomatic severe coronary ischemia. In this trial we will study the safe use of this therapy and its effects on making new blood vessels will be evaluated. Coronary ischemia is intractable angina due to severe coronary artery disease which can seriously decrease blood flow to the heart. CI needs a comprehensive treatment since the condition will not improve on its own. The overall goal of the treatment is to increase blood flow to the heart and improve symptoms of angina. The study hypothesis is based on the concept that the process of formation of new blood vessels is complex and requires the participation of several types of stem cells and growth factors. The lack of any of these components will produce vessels which are immature and unable to provide appropriate blood supply to the heart. Patients eligible to participate in this study are those suffering from severe blockages to the vessels of the heart and are not candidates for percutaneous revascularization or surgical procedures. Once the final mixture of stem cells is prepared, the cells will be intracoronary infused through a catheter into the blocked vessel of the heart. Studies will be performed to evaluate if the intracoronary infusion of stem cells is safe, feasible and works. Patients will be evaluated for 6 months after cell transplant.
A 104-week, randomized, double-blind, parallel group, multi-center Phase IIIb study comparing the effects of treatment with rosuvastatin 40 mg or atorvastatin 80 mg on atherosclerotic disease burden as measured by intravascular ultrasound in patients with coronary artery disease.
This is a prospective study of 7th grade students participating in the CPR Anytime® program. After consent, participants will be asked to complete the program with their parent(s)/legal guardian(s) and encouraged to include other friends and family members in the program. After completing the program, the participant and their parent(s) will be evaluated for adequacy of chest compressions/CPR. The student participants will be evaluated again at 6 months for adequacy of chest compressions/CPR Objectives: 1. To evaluate 7th grade students for adequacy of CPR and chest compressions after completing a take home CPR course 2. To evaluate the multiplier effect of students training in CPR with their parents/family members using a take home CPR instructional kit 3. To evaluate the participating parent for adequacy of CPR and chest compressions after completing a take home CPR course Research Hypothesis: 1. 7th grade students can be trained, using CPR Anytime®, to perform adequate chest compressions/CPR and their skills will be maintained at 6 months 2. As part of the multiplier effect, an additional 1.5 family members per participant will be trained to perform adequate chest compressions/CPR
In a randomized study the Xience V coroary artery stent may be non inferior to the Cypher Select+ coronary stents in the treatment of unselected patients with coronary artery disease.
The purpose of this research study is to determine if the transplant of a combination of stem cells, obtained from the bone marrow of the same patient, is effective for utilization and rescue of infarcted myocardium. End points will be the assessment of development of mature and stable new blood vessels as well as improvement in cardiac function. This, Phase I, single center, prospective, non-randomized, open-label study will evaluate the safety and feasibility of use of the proposed combination of autologous stem cells. Potential subjects who fulfill clinical and laboratory entry criteria at screening will undergo a process of bone marrow aspiration for preparation of the two types of bone marrow-derived stem /progenitor cells to use. The two bone marrow-derived cell types will be mixed and implanted to patients approximately 2 weeks after bone marrow aspiration. After transplant, patients will be have a 3 month follow-up to evaluate safety as well as functional heart improvement by analysis of symptoms, myocardial perfusion SPECT, and echocardiography. Study population will include adult male and female subjects, ages 18-70, presenting with acute myocardial infarction and subjects who have had a recent (within 12 months) myocardial infarction and will undergo coronary artery bypass grafting. Patients will be divided in two groups: - the first group will enroll patients with acute myocardial infarction whom percutaneous coronary intervention restored myocardial flow after 4 hours or greater of the initiation of symptoms, - the second group will enroll patients who are candidates for coronary artery bypass surgery and had a myocardial infarction in the past 12 months. Patients will receive the cell mixture by intracoronary or intramyocardial infusion, respectively. The rationale of this clinical study is based on the observation that most attempts using adult stem cells for myocardial regeneration have utilized a source of bone marrow derived progenitor cells with the potential to generate new blood vessel and thus contribute to the revascularization of the ischemic tissue. This therapy seems to be adequate but not sufficient, since it lacks a source of stem cells capable of differentiating and maturing into cardiac muscle cells, thus contributing to the recovery of local contractility. The proposed combination stem/progenitor cell therapy to be used in this protocol is aimed at contributing cell types capable of regenerating both blood vessels and muscle tissues damaged after MI.
Cardiovascular risk in women is systematically underestimated by both - society and physicians. Women younger than 50 years of age with acute coronary syndrome have 2x higher mortality compared with age-matched men. A number of common vascular-disease-related conditions are more frequent in women than in men. Women develop a more severe or different form of vascular disease then men. Variability of onset, relative risk, and the synergy of traditional and novel risk factors creates a challenge to physicians possibly resulting in suboptimal management and disregard in women presenting with angina symptoms. During last 10 years the rise in coronary artery disease (CAD) prevalence in younger women is observed. Emerging data suggest a unique risk profile in women (hypoestrogenemia with adverse effects of a protracted dysmetabolic state). The risk factors assessment and the risk factors profiles in women that are associated with CAD may be different than in men and thus merit reassessment. Purpose The primary objective of this study is to determine characteristics and prognosis of women with premature coronary artery disease and to evaluate the extent of atherosclerosis
We will obtain data using multi-slice CT technology to detect subclinical coronary disease in the HIV population. Determination of subclinical cardiovascular disease using noninvasive technology and elucidation of the associated risk factors will help to guide targeted therapy to prevent cardiovascular events in this patient population. We will investigate the prevalence of coronary plaque lesions and coronary artery calcifications in men and women with HIV disease as determined by 64-row multidetector computed tomography (MDCT) and MDCT coronary angiography in comparison to age-matched control subjects without HIV infection. We hypothesize that evidence of coronary artery calcification and coronary plaque lesions as seen by MDCT will be present in individuals with HIV more than non-HIV control subjects of the same age. We also hypothesize the degree of atherosclerosis will be increased in HIV patients compared to control subjects. We will evaluate the metabolic and inflammatory factors associated with coronary artery disease in HIV-infected individuals. We hypothesize that traditional cardiac risk factors as well as metabolic and inflammatory changes associated with HIV and its treatment such as dyslipidemia, increased secretion of inflammatory markers, decreased adiponectin, increased insulin resistance and increased visceral fat may be associated with coronary artery disease in HIV-infected individuals.
The purpose of this study is to evaluate the prevalence and clinical predictors of subclinical coronary atherosclerosis and to validate the usefulness of coronary CT angiography as a screening tool in asymptomatic patients with type 2 diabetes mellitus.
The purpose of this study is to compare the difference of diagnostic efficiency between coronary CT angiography and myocardial perfusion single photon emission computerized tomography in asymptomatic patients with type 2 diabetes mellitus.
The purpose of this study is to determine whether a combined behavioral and pharmacological intervention provided by a multidisciplinary team will further reduce LDL-C, smoking, BP and Hb-A1C in diabetic patients with A1c between 7% and 9% when compared to usual care.