View clinical trials related to Cardiovascular Diseases.
Filter by:The purpose of this study is to determine the impact of individually lifetime accumulated exposure to air and noise pollution on the incidence and prevalence of cardiovascular diseases (CVD) and mortality. Air as well as noise pollution have harmful effects on human health. Experimental and clinical studies have shown a strong impact between particulate matter (PM2.5) and cardiovascular disease (CVD). Prolonged exposure to PM2.5 has been associated with the development of atherosclerosis and adverse cardiovascular events. However, also short-term exposure has been linked to acute coronary events. PM2.5 is, however, a combination of many components of specific pollutants that have a size of two and a half microns or less in width. However, there is a knowledge gap, as investigation into which specific components of air pollutants that contribute the most to the development of CVD is lacking. There is a need to adopt and encourage preventive measures but also put in place environmental policies that are effective in promoting the reduction of exposure to pollutants. We want to aid in this shift by showing which specific pollutants contribute the most to the development of CVD so that we can better target these specific air pollutants for better prevention initiatives.
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the United States and other industrialized societies, and advanced age is the major risk factor for development of CVD. Advancing age appears to exert its pathological influence primarily via adverse functional and structural effects on arteries. Aging is associated with increased stiffness (reduced compliance) of large elastic arteries and impaired arterial endothelial function that is characterized by reductions in nitric oxide (NO)- mediated endothelium-dependent dilation (EDD). While several changes to arteries may contribute to age-associated increases in CVD risk; the development of endothelial dysfunction and stiffening of the large elastic arteries are among the most important contributors. Both are predictors of CV events and clinical CVD with increasing age. Although the importance of endothelial dysfunction and arterial stiffening with age are well established, the initiating events of these deleterious changes are elusive.
This study is being conducted to provide access to and collect test data for an established nuclear medicine diagnostic imaging test called Positron Emission Tomography (PET), using a specific radioactive drug called Ammonia N-13 (Ammonia), referred to simply as an Ammonia PET scan, which is used to visualize the blood flow through the blood vessels and into the heart muscle in order to identify areas of restricted blood flow within the heart. The scanner used in this study may be a stand-alone PET scanner or a PET/CT scanner, which combines the PET scanner and a Computed Tomography (CT) scanner into a single device. Unless otherwise stated in this consent form, the term PET will be used to refer to both stand-alone PET and PET/CT scanners. While physicians have used the Ammonia PET test for many years to visualize (image) the blood flow into the heart muscle (perfusion), it is now possible to also measure the flow of blood into the heart muscle. Research studies have demonstrated clinical value in reviewing the measured blood flow values in addition to reviewing the perfusion images of blood flow into the heart muscle. Therefore, this study will establish a database of a large number of Ammonia PET measured blood flow values to serve as a future reference.
Cardiovascular Disease (CV) including stroke is the leading cause of death in Malaysia Hypertension is a major contributor to this. Prevalence of hypertension in Malaysia is high (42%) in adults age 30 years or older. Besides the actual blood pressure (BP) level recently, blood pressure variability (BPV) has been recognized as an independent and strong predictor of CV events especially strokes. However, data on the BP variability and its relationship to CV events is very limited in Asia, particularly in Malaysia. Hence the investigators aim to study BPV and its relationship to CV events in treated hypertensive patients
COVID-19 is associated with complications including ARDS and myocardial injury, which informs prognosis and patient outcome. The laboratory plans to perform immunophenotyping of peripheral T-cells in patients with COVID-19 and complications (ARDS, ITU admission, myocardial injury) and map this against clinical patient outcomes. The aim is to determine if there is a specific T-cell immunophenotype associated with COVID-19 and/or complications, which can be used to inform prognosis and potential therapies.
The goal of the study is to combine a collaborative and translational approach to evaluate the effect antiretroviral regimen switch to a dolutegravir containing regimen compared to continued treatment with a non- dolutegravir based regimen on on lipid and metabolic profiles, renal function, body composition, vascular function and diet.
Proprotein convertase subtilisin/kexin type 9 inhibitor monoclonal antibodies (anti-PCSK9) significantly reduce the serum LDL-C level, leading to a regression of the coronary epicardial plaque demonstrated by intracoronary ultrasonography (IVUS), as well as cardiovascular events (CV) in patients with atherosclerotic CV disease treated with statin. The impact of PCSK9 inhibition on coronary microcirculation has never been assessed. However, microvascular coronary dysfunction (CMVD) is a powerful prognostic marker, irrespective of conventional CV risk factors, but also of the severity of the epicardial coronary involvement detected during coronary angiography. The investigators hypothesized that anti-PCSK9 would decrease CMVD, measured by the microcirculatory resistance index (MRI) during coronary angioplasty (Percutaneous coronary intervention, PCI) in patients with myocardial ischemia proved in myocardial scintigraphy.
The aim of this study is to investigate the chronic hemodynamic and autonomic repercussions of the insertion of VRBT in CR. To qualitatively analyze the perception of patients and physiotherapists regarding the use of VRBT, as well as their association with CR, and through a new questionnaire that takes into account patients 'adherence, identifying which are the main barriers that influence patients' absences.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the pathogen responsible for the novel coronavirus disease 2019 (COVID-19). The first reports of COVID-19 came from Wuhan, China in December of 2019. Since then, the disease has spread rapidly around the globe, accounting for thousands of deaths in multiple countries. On March 11th, 2020, the World Health Organization declared COVID-19 as a pandemic. Although COVID-19 manifests primarily as a respiratory illness, several cardiovascular implications have been reported related to its natural course and treatment. Its exact effect on the cardiovascular system though is currently unknown. Therefore, we propose a retrospective, observational, case-control study looking for cardiovascular manifestations of COVID-19, including laboratory evidence of myocardial injury, electrocardiographic changes, arrhythmias and echocardiographic abnormalities. Hospitalized patients admitted with fever, cough, sore throat, and/or dyspnea who were tested positive for SARS-CoV-2 will be included in our study and will be matched based on their age and gender with patients admitted with similar symptoms who tested negative for SARS-CoV-2. The electronic medical charts of the study subjects will be reviewed and relevant demographic, clinical, laboratory and imaging findings will be deidentified and recorded. Since our study will be a retrospective chart review study it carries minimal risk for the patients and the investigators. Cardiovascular disease associated with COVID-19 might be contributing to the high mortality rates and its recognition will allow for prevention, early diagnosis and appropriate treatment. This will be the first, large, case-control study assessing cardiovascular involvement of COVID-19 in a well-defined cohort of patients.
Multicentric non-profit observational study, in patients with COVID-19 hospitalized in Italy, conducted through a pseudonymised survey.