View clinical trials related to Cardiovascular Diseases.
Filter by:The purpose of this pilot study is to optimize conditions for a planned human intervention study focusing on how diet predispose for, and influence, lifestyle disease development and its consequence in cardiovascular disease development.
To confirm that patients who receive the Star-Close vascular closure system (VCS) can safely ambulate within 30 minutes of catheterization.
This proposal delineates a research plan to collect blood from patients undergoing heart catheterization or who have had a heart catheterization within one year and are coming in for outpatient appointments, or who have scheduled cardiac CT scans at the Cleveland Clinic over a five-year period for the purpose of establishing a gene bank registry. In addition, the University of North Carolina at Chapel Hill will enroll 1,000 non-Caucasian patients and MetroHealth Medical center in Cleveland will enroll 1,000 non-Caucasian patients. The blood collected will be processed to create a repository of DNA, lymphoblastoid cell line immortalization on selected patient populations, plasma and serum. The DNA will be amplified in certain patient populations to preserve the quantity. Along with a sample of blood collected from individual patients, a concise general medical history, demographic data, electrocardiographic data, echocardiographic data (available for about 55% of patients at the present time), and laboratory data will be collected. A short interview will take place after enrollment during the outpatient visit or hospital stay, or may be conducted via phone call after enrollment. All the clinical data gathered will be compiled in GATC heart center database, and would be stored in a format where a culmination of clinical findings, i.e. representing a disease of interest, can be used to search the database to identify the blood samples of all patients with such characteristics for further study.
The primary purpose of this study is to learn if taking pictures of your heart using two dimensional and three dimensional echocardiography in the heart failure intensive care unit can be helpful to understanding how the heart is working. All research subjects will be adults admitted to the heart failure ICU with acute decompensated heart failure and requiring monitoring of their heart function using a catheter that is placed in the pulmonary artery which is a blood vessel. In this situation, use of the pulmonary artery catheter,or PAC, is considered standard clinical care. It is not a research procedure. The PAC would be used even if you were not participating in this research project. All research subjects will be evaluated at the time they are admitted to the ICU, 24 to 48 hours after admission to the ICU, and 7 days after leaving the ICU. At all three time points, we will be taking pictures of the heart using the two dimensional and three dimensional echocardiogram. Additionally, at each time-point, we will collect a blood sample of approximately two and a half tablespoons each time, and a urine sample. We will be testing the sample for biomarkers of heart failure which are proteins and enzymes specifically related to heart function. We will not be conducting any genetic research on the sample. Any extra blood from these research tests will not be saved for future research. We will also be looking at the data that is collected by the pulmonary artery catheter. The catheter has a sensor on it that measures things like blood flow and pressure in the heart. At the Day 7 post discharge visit there will be a six minute hall walk so that we can access the distance that you can walk. We will access any symptoms that you may experience. A nurse or physician will monitor the six minute hall walk. The research information that we collect on you will not be placed in your medical record. The data is for research purposes only.
Understanding the mechanisms of obesity-induced hypertension is important both for prevention and therapy. Studies of patients with established obesity have provided valuable information on pathophysiologic links between obesity and both blood pressure and cardiovascular risk. However, these studies are necessarily limited by the heterogeneity of obesity-associated disease so that the relative contribution of obesity or hypertension or other co-existing diseases to specific regulatory abnormalities is often not clear. Clarification of whether any abnormalities associated with increased cardiovascular risk were present before or after the development of obesity has also been problematic. We therefore propose a series of novel studies directed at establishing the effects of increased body fat in otherwise healthy individuals. We will determine the distribution patterns of increased body fat and how both increased body fat and fat distribution relate to changes in blood pressure, and in neural, endothelial and inflammatory mechanisms which have been implicated in the development and progression of cardiac and vascular disease. We will study non-obese subjects with and without a family history of hypertension. These subjects will undergo an eight-week program of overfeeding with the objective of inducing a 4 kg fat gain. We will determine the nature of fat distribution in these individuals after the fat gain program and subsequently after an eight-week period of weight loss and restoration of normal body weight. Measurements will be compared to those obtained in a matched control group with and without a family history of hypertension, who will continue their normal diets. We will test the following hypotheses: - Individuals with a family history of hypertension will gain more visceral fat and upper body subcutaneous fat and will have greater blood pressure increases with overfeeding- compared with those without such a family history. - For all overfed subjects, increases in blood pressure and insulin resistance with fat gain will be most marked in those individuals with a predominantly upper body and visceral fat accumulation. - Upper body and visceral fat gain will also be associated with greater impairment in cardiovascular function, higher nocturnal blood pressures and an increased likelihood of sleep disordered breathing.
The purpose of this pilot study is to examine the effect of diet and/or exercise-induced weight loss on nontraditional cardiovascular risk factors such as c-reactive protein, insulin levels and sex steroids in obese postmenopausal women.
This is an investigator initiated registry aimed at assembling a blood/serum and genomic resource (bank) of human blood samples with accompanying clinical data mainly from patients who are scheduled to undergo cardiac catheterization at UC Davis Medical Center, but may also include other eligible individuals. Funding is from institutional/divisional research funds.
The ABCD clinical study (ClinicalTrials.gov Identifier NCT00187291) was designed to determine if a T-Wave Alternans (TWA) test is equivalent to an Electrophysiology Study (EPS) in predicting life-threatening heart rhythms in patients with ischemic heart disease, left ventricular dysfunction, and non-sustained tachycardia. The purpose of the ABCD Genetic sub-study is to identify genetic markers that predict TWA status and arrhythmia risk in this same population.
The aim of the proposed study is to implement and evaluate Outreach Facilitation as a means to increase the uptake of evidence-based practice for secondary prevention and management of patients with established CVD and cardiovascular risk factors, in primary care practices throughout the Champlain LHIN. This initiative centers on the use of an Outreach Facilitation Model, in which skilled health professionals known as facilitators (Practice Change Consultants) serve as an expert resource to primary care practices in three areas: a) practice performance assessment, feedback, and consensus building towards goal setting and implementation; b) clinical, technical, organizational resources and practical advice; and c) encouragement to face and move through the challenges associated with implementing system change.
The purpose of this study is to determine whether short-term exposure to a compound found in some fruits and vegetables (anthocyanin), is effective in improving skin health and reducing the levels of various markers of cardiovascular disease risk. A range of skin health parameters are being studied and volunteers are also providing skin biopsy, urine and blood samples. 62 postmenopausal women have been recruited for this study.