View clinical trials related to Heart Disease.
Filter by:The objective of this pilot study is to evaluate the prevalence of biological aspirin resistance in women at risk for CHD taking low dose (81 mg) aspirin. Aspirin responsiveness will be measured with the VerifyNow device (Accumetrics; San Diego, CA). Those women identified as biologically resistant will be switched to aspirin 325 mg for 14 days and then re-tested for aspirin responsiveness.
The purpose of this study is to assess the efficiency of permanent biventricular pacing using three ventricular leads in terms of reduction in adverse cardiac events rates, improvement in cardiac capacity and patients' functional status in subjects with congestive heart failure and a physiologic (sinus) rhythm.
This is a Phase 2, multicenter, open-label, single-arm, sequential cohort study to be conducted in up to 30 subjects. The study will evaluate subjects undergoing primary, elective, off-pump CABG surgery with median sternotomy.
The present investigation will be a Phase II, single center, placebo-controlled, randomized, dose escalation, infusion modality (intracoronary vs transendocardial injection using the Cordis Biosense NOGASTAR TM Mapping Catheter with the Biosense MYOSTAR TM left ventricular injection catheter) transplantation of an autologous (your own stem cells) combination of bone marrow-derived stem cells into myocardium for the treatment of severe coronary ischemia. 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(CI). In this trial we will determine whether the combination stem cell treatment is safe, feasible and results in the development of mature stable and/or collateral vessels and improvement of cardiac function. Coronary Ischemia (CI) 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 of the vessels of the heart and are not candidates for percutaneous revascularization or surgical procedures.
ABSTRACT Although most primary healthcare practitioners recognize the important relationship among nutrition, physical activity and health, few incorporate either dietary or physical activity counseling into routine practice. AUGMENT will employ interactive technology to support effective patient life-style counseling during routine office visits. AUGMENT technology will automate the administration, collection, and analysis of dietary and physical activity questionnaires, and it will guide counseling and present intervention resources and strategies tailored to the patient's unique needs. Using tablet computers, wireless LANs, and inexpensive Internet communications, AUGMENT will have advantages over existing tools: 1.) Lower usage costs (minimal office personal required), 2.) Ability to customize the system, and 3.) Real-time, comprehensive assessment. The AUGMENT system efficiently and relentlessly gathers important healthcare information (such as total fat, type of fat consumption; fruit and vegetable consumption; fiber and micronutrient intake; and energy output). This means patients are less likely to have their preventive needs overlooked by a busy practitioner. The assessment includes questions to determine the amount of effort the patient will commit to improved health. This will enable the physician to effectively guide the patient via targeted recommendations, obtainable goals, and a course of action that is both preventive and prescriptive; and to monitor progress. Patients who receive objective assessments of their healthcare practices and recommendations based on their own unique health history will be more likely to accept and act on the recommendations. The specific aims of the study are to: 1) Incorporate key elements of a previously developed prototype tool into a dietary and physical activity risk assessment system, 2) Create a provider training tool to build proficiency in using AUGMENT for counseling to reduce disease risk. 3) Validate the AUGMENT dietary and physical activity assessments using dietary recalls and accelerometer data, 4) Complete a process evaluation of the AUGMENT program by using it in interventions managed by six physicians with at least 240 patients, and 5) Survey participating providers and patients to assess acceptability of AUGMENT within a clinical setting.
This is a study of the effects of 3 oz almonds added daily to a National Cholesterol Education Program Therapeutic Lifestyle Changes (TLC) diet in improving endothelial function in patients with Coronary Artery Disease. The study seeks to determine if these effects are mediated via an increase in Nitric Oxide synthesis and reductions in dyslipidemia and systemic inflammation. Vascular reactivity will be assessed via flow mediated dilation with endothelium-independent and hyperemic flow measured in the right brachial artery by non-invasive 2-dimensional and Doppler ultrasound. Serum will be collected and analyzed for biomarkers of dyslipidemia, inflammation, endothelial function, vascular reactivity and oxidative stress.
The Cardiac Allograft Rejection Gene Expression Observational (CARGO) II Study is designed to provide independent evidence of the clinical performance of the non-invasive AlloMap test. Sensitive detection of cardiac allograft rejection and dysfunction is the basis for successful recipient management. The CARGO II Study will assess the correlation between the presence or absence of acute cellular rejection as determined by examination of endomyocardial biopsy specimens with results from the AlloMap Test. Of 17 participating transplant centers, 4 are in North America and 13 are in Europe.
The purpose of this study is to determine whether a retrofit particle trap can reduce the adverse vascular responses to diesel exhaust inhalation
A robust release of endothelin-1-1 (ET) with subsequent ETA subtype receptor (ET-AR) activation occurs in patients following cardiac surgery requiring cardiopulmonary bypass (CPB). Increased ET-AR activation has been identified in patients with poor left ventricular (LV) function (reduced ejection fraction; EF). Accordingly, this study tested the hypothesis that a selective ET-AR antagonist (ET-ARA) administered peri-operatively would favorably affect post-CPB hemodynamic profiles in patients with a pre-existing poor LVEF.
The primary objective of this study is to establish a safe and effective method of up-titration of captopril for hospital inpatients.