View clinical trials related to Coronary Heart Disease.Filter by:
Because of its availability, non-invasiveness, and high diagnostic performance, myocardial perfusion tomoscintigraphy has become a standard tool for the detection, characterization and monitoring of coronary artery disease. Standard analysis, based on the reversibility of regional myocardial hypoperfusion between stress (physiological or pharmacological) and rest, has good sensitivity and negative predictive value in the search for myocardial ischemia. However, two major obstacles persist. First, because of the relative nature of the normalization of cardiac activity, this approach may underestimate the extent of the damage, especially when the territory with the most activity is itself pathological. Thus myocardial perfusion scintigraphy can only detect 40 to 50% of tri-truncal patients. To overcome these disadvantages, several indexes have been proposed to improve the diagnostic performance of perfusion scintigraphy in multi-truncal patients based in particular on kinetic analysis. Secondly, the review does not provide any guarantee as to the quality and reproducibility of use of the coronal reserve during stress, in particular during submaximal stress tests and pharmacological stress, the latter being easily antagonized by xanthine derivatives contained in tea and coffee in particular (abstinence of at least 12 to 24 hours being recommended). In recent years and thanks to the advent of CZT semiconductor cameras dedicated to cardiology - to perform a dynamic tomographic acquisition - a study of the coronal reserve is feasible by perfusion tomoscintigraphy in current practice. This study of the coronary reserve mainly consists of a computer post-processing of the myocardial perfusion scintigraphy data and does not therefore require any additional irradiation (the only difference with respect to the old protocols is the start of the images at the time of publication. injection of the radiotracer). However, the diagnostic benefit gained from the coronary reserve study compared to conventional stress / rest perfusion scintigraphy has not been clearly studied, particularly in the multi-truncal patients.
This study aims to evaluate the psychometric properties of a newly developed FFQ specified for northern Chinese CHD and their high risk patients (CHD-FFQ). The psychometric properties include test-retest reliability, content validity, convergent validity, discriminant validity, concurrent validity and predictive validity. Particularly, this study will measure the physiological indicators, including plasma lipid profile (i.e. TG, TC, HDL-C, LDL-C), BG, BP and BMI twice at baseline and the end. The level of these physiological indicators will be compared with the fat intake measured by the CHD-FFQ, i.e. the baseline intake to test its convergent validity. It is also expected to predict the diet-related progression of CHD risks among high-risk individuals, i.e. patients with two or more CHD risk factors as following: raised fasting blood glucose (BG) level, increased blood pressure (BP), increased triglycerides (TG), decreased HDL-Cholesterol (HDL-C), increased LDL-Cholesterol (LDL-C), smoking and central obesity (International Diabetes Federation, 2015). In addition, this study will provide the FFQ's concurrent validity in assessing the intake of energy and nutrients against the CDC-FFQ. Moreover, whether the FFQ could detect the known differences in energy intake between men and women will be established for its discriminant validity.
Women with heart disease are more likely to die or suffer another cardiac event or stroke within 5 years of an index event compared to men. They are also more likely to suffer depression and report lower quality of life. Cardiac Rehabilitation programs have been designed to address these issues, but most women do not attend. Women indicate they have a greater need to talk about their experiences with heart disease and seek social support to help them cope. Peer support, the assistance provided by other women with a similar illness experience, may be one way to enhance social support for women with heart disease and help them improve their psychosocial well-being. The Investigators have developed a peer support program called Women@Heart (W@H). The program is led by trained peer leaders (women who themselves have made a successful recovery from a heart event). A pilot test of the program showed promising results. The Investigators now need to conduct a more rigorous evaluation of the program. The main objective of this project is to determine if the W@H program helps women to improve their psychosocial well-being compared to being on a waiting list to participate in the program. It will also examine the effect of the program on: health behaviours (tobacco smoking, physical activity, sedentary behaviour, fruit and vegetable consumption, and medication adherence); coronary risk factors; arterial health; and clinical outcomes (re-hospitalization, health care system use, death).
Ischemic Heart Disease (IHD) is a condition of recurring chest pain or discomfort that occurs when a part of the heart is not receiving sufficient blood flow. It is a major public health concern internationally and in Singapore, the leading cause of death from cardiovascular disease. Cardiovascular magnetic resonance (CMR) has the ability to assess heart structures, scarring or lack of blood supply to the heart muscle with great accuracy and without any radiation involved. A CMR-compatible cycle ergometer can offer a safe and low cost stress equipment to assess heart function and motion abnormalities, and restrictions of the blood supply to the heart tissues due to partial or complete blockages of the blood vessels. This study aims (1) to develop an exercise-CMR stress protocol by testing its feasibility and robustness in assessing changes in cardiac volumes and function due to physical exertion in healthy individuals and (2) to assess the accuracy of the multiparametric stress-CMR as a diagnostic tool for ischemic-causing coronary artery disease (CAD) with coronary fractional flow reserve (FFR) as a reference.
The aim of the Danish Organisation for randomised trials with clinical outcome (SORT OUT) is to compare the safety and efficacy of the ComboTM stent and Orsiro™ stent in the treatment of unselected patients with ischemic heart disease, using registry detection of clinically driven events.
This is an analysis conducted in the Nurses Health Study and the Health Professional Follow-Up Study, both prospective cohort studies, where the investigators systematically investigated the association between carbohydrate quality using a variety of metrics in relation to coronary heart disease. This was a secondary data analysis of previously collected data in both cohorts.
The impact of frailty on immediate and long term outcomes of invasive treatment of coronary artery disease is not fully characterized. The assessment of frailty may help physicians in the selection of best treatment option and in the timing and modality of the follow-up. The FRAilty syndrome in daily Practice of Interventional CArdiology ward (FRAPICA) study is designed with the aim to validate the use of the Fried frailty scale and instrumental activities of daily living scale (IADL) as prognostic tools in patients admitted to hospital for symptomatic coronary artery disease, either stable, unstable, or acute coronary syndrome (ACS). The FRAPICA study is a single center prospective study enrolling patients aged ≥65 years. The aims are (1) to describe Fried frailty scale and IADL scale distribution before hospital discharge and (2) to investigate the prognostic role of Fried frailty and IADL scores. The outcomes are: (1) results of invasive treatment, (2) its complications (periinterventional MI, contrast-induced nephropathy, blood loss), (3) three-year all-cause mortality, cardiovascular mortality, stroke, myocardial infarction, reintervention, heart failure, hospital readmission for any cause, and a composite of the above mentioned. Ancillary analyses will be focused on different clinical presentations, different tools to assess frailty and risk stratification. The FRAPICA program will fill critical gaps in the understanding of the relation between frailty, cardiovascular disease, interventional procedures and outcome. It will enable more personalized risk assessment and identification of new targets for interventions.
This registry is designed to investigate factors affecting the efficacy of Dun Ye Guan Xin Ning tablet on patients with stable angina. The potential hypothesis is that Dun Ye Guan Xin Ning has a better effect on different subgroup patients with certain characteristics.
The purpose of this study is to make a cohort event monitoring to see whether and how Dazhuhongjingtian injection in hospital results in adverse events or adverse drug reactions
The primary aim of this study is to examine if long-term patterns of alcohol consumption are associated with time-to-onset for incident coronary heart disease (fatal and non-fatal), using data from multiple cohorts.