View clinical trials related to Coronary Artery Disease.
Filter by:The aim of this study is to examine the long-term (3-5 year post intervention) effects post individualized follow-up with an app for one year, compared to a control group that received usual care on factors related to healthy behaviour in patients post-CR.
An observational study to evaluate safety and efficacy of the hybrid approach DES/DCB in the treatment of long diffuse de novo coronary artery disease
Previous studies demonstrated an association between cognitive deficit and coronary artery disease (CAD; Abete et al., 2014; Deckers et al., 2017) even after controlling for the effects of age and socioeconomic status (Singh-Manoux et al., 2003). A selective, non-amnestic cognitive impairment profile has also been observed in this patient group (Roberts et al., 2010), with executive function as the most vulnerable cognitive domain (Rostamian et al., 2015). Prospective memory and CAD Prospective memory (PM) is another facet of executive function that concerns the realization of an intended action (Kvavilashvili, 1998). In addition to the support from memory system, PM strongly relies on attentional and executive control (Kliegel et al., 2011). For example, the two-stage cue-focused view of PM retrieval (McDaniel et al., 2004) posited the importance of "noticing" an action cue before the associated memory search can be initiated. PM is a clinically relevant psychological construct as the failure has been related to quality of life (Doyle et al., 2012), activities of daily living (Woods et al., 2008) and medication adherence (Zogg et al., 2012). However, little is known about PM function in CAD. Only Habota et al. (2015) reported significant PM deficit in a small group of chronic heart failure patients (N = 19) as compared to healthy controls (N = 24). Therefore, the first aim of the present study is to examine PM performance in people with CAD as compared to their healthy controls. Prospective memory and cardiac function The association between the brain and the heart has long been recognized (Samuels, 2007). However, the mechanism of cognitive impairment in CAD has not been clearly understood. Researchers proposed several contributing pathological routes including increased platelet activity, thrombo-embolic mechanisms or cardiac output reduction (Abete et al., 2014). The neurovisceral integration model (Smith et al., 2017) proposed a hierarchy of vagal control from intra-cardiac and cardiovascular reactions to representation of multimodal prior expectations that involve the cerebral executive control network. Accumulating evidence supported this notion by demonstrating the link between autonomic nervous system (ANS) and behavioral performance, such as the association between heart rate variability (HRV) and cognitive functions (Forte et al., 2019) and its moderating effect of resting pre-ejection time (PEP; Giuliano et al., 2017). Few studies investigated the relationship between autonomic responses and PM. Kliegel et al. (2007) and Rothen et al. (2014) verified that there was an association between increased skin conductance responses (SCRs) and the noticing of PM cues in young adults. More recently, Umeda et al. (2016) found that PM performance was associated with an increase in heart rate upon target presentation and with better interoceptive accuracy in college students. They hypothesized that PM was regulated by cardiac afferent signals that facilitate saliency detection and intention retrieval, which was also mediated by interoceptive accuracy. These preliminary findings suggest close relationship between PM and autonomic functions and provide another aspect of the evidence on the brain-heart connection. However, the methodology adopted in these studies suffered from crude, indirect measures of ANS activity. It is also unclear if the autonomic nervous function compromised by CAD (Montano et al., 2009) would play a role in PM deficit. Hence, the second aim of the present study is to investigate the relationship between PM and cardiac function as measured by HF-HRV (the parasympathetic component) and PEP (the sympathetic component).
The goal of this observational study is to determine the diagnostic accuracy of peripheral whole blood transcriptomes analyzed by an artificial intelligence algorithm to detect the presence and extent of coronary calcification in individuals without a history of known cardiovascular disease. The main question it aims to answer is: 1. Will the proposed method predict the presence and extent of coronary artery calcification from the peripheral whole-blood transcriptomes?
In coronary artery bypass grafting (CABG), the use of radial artery (RA) is recommended by the guidelines only to significantly stenosed vessel, due to its high vulnerability to competitive flow. Fractional flow reserve (FFR) is the gold standard to measure physiological significance of coronary lesions and the potential for competitive flow. This study aims to investigate whether the preoperative quantitative flow ratio (QFR) measurement, a novel coronary angiography-based FFR, is associated with RA graft failure post-CABG, and to explore the best cut-off value of QFR for RA grafts using. Patients from ASRAB-pilot trial (NCT04310995) undergoing primary isolated CABG using RA grafts, and with preoperative coronary angiography (CAG) images available for QFR analysis will be enrolled in this prospective double-blind observational study. QFR analysis will be conducted for all RA-grafted vessels based on preoperative CAG. The primary outcome will RA graft failure (FitzGibbon Grade B,O or S) evaluated by coronary computer tomography angiography or CAG at 7 days and 6 months post-CABG.
TruePhysio pressure microcatheter is a novel device for evaluating the functional significance of coronary stenosis, and has been validated in the previous SUPREME study (NCT03541577). This study will further evaluate the safety and efficacy of the physiological indices measured by the TruePhysio pressure microcatheter, with respect to the physiological indices measured by the Pressure Wire.
To evaluate benefits of primary prevention of major coronary heart disease for asymptomatic coronary artery disease in type 2 diabetes mellitus based on the coronary artery calcium score Our proposal 1. Based on CAC score, primary early prevention could reduce incidence of major coronary heart disease (CHD) including cardiac mortality, acute myocardial infarction, coronary revascularization 2. based on CAC score, primary early prevention could reduce all cause mortality, cardiac mortality, cardiovascular disease, heart failure, ischemic stroke, heart failure associated hospitalization and chronic kidney disease and related clinical cost effect
According to the Women's Ischemic Syndrome Evaluation database, there are approximately 3 to 4 million women and men who present with signs and symptoms that are suggestive of myocardial ischemia, however they have no obstructive coronary artery disease (INOCA). INOCA is defined as patients presenting with signs or symptoms of ischemia but no obstructive artery disease. Women are more likely than men to die from cardiovascular disease and more likely to present with no obstructive coronary artery disease. Patients who present with signs and symptoms suggestive of INOCA/MINOCA are also presenting with Coronary Microvascular Dysfunction (CMD). Coronary Microvascular Dysfunction is a dysfunction in the epicardial and/or microvascular endothelial and/or nonendothelial that limits myocardial perfusion. Today, there is no routinely offered/available noninvasive test that is used for the diagnosis of CMD, significantly hindering the ability to identify the disease in the standard of care. Magenetocardiography (MCG) has the opportunity to use its noninvasive imaging techniques to provide early management of CMD. Magnetocardiography (MCG) is a noninvasive imaging modality that has been extensively studied, over the past several decades, as a diagnostic imaging solution for various forms of cardiovascular disease. MCG measures the magnetic field that arises from the electrical activity of the heart's pacemaker activity, the very same activity which yield surface electric field potentials as measured by the electrocardiogram. Since MCG is a functional assessor of repolarization heterogeneity, it is hypothesized that MCG may be a useful frontline diagnostic to identify CMD in patients who would otherwise have normal coronary CT angiograms and/or stress tests. The proposed study intends to study the diagnostic accuracy of MCG in this population, with the goal of providing early and noninvasive insights for management of CMD. There will be a 12-month duration of the study where the investigators propose to collect MCG scans from approximately 150 patients who present to the Genetesis facility for a 15-minute CardioFlux scan appointment.
This is a multi-center, prospective and controlled clinical trial which will enroll 200 coronary arteriography or percutaneous coronary intervention with 2-4 interventional cardiologist. The interventional cardiologist performed 100 interventional procedures using either a new protective device (NPD) or a traditional lead clothing (TLC). The cumulative dose outside the NPD or TLC and the first operator at each height (110cm, 90cm, 50cm, 10cm) was measured. The main indicators of the study are the average X-ray shielding efficiency of the NPD and the TLC at four different heights. The investigators will record all operation information in this study.
This study will use a form of intermittent fasting called time-restricted eating (TRE) where individuals consume ad libitum energy intake within a set window of time, commonly 8 hours, which induces a fasting window of 16 hours per day (i.e., 16:8 TRE). TRE could be an effective addition to cardiac rehabilitation as it has demonstrated cardiovascular health benefits and potential for synergy when combined with exercise training. This study will determine if TRE is a feasible and safe nutrition intervention during cardiac rehabilitation and if TRE improves the health benefits of cardiac rehabilitation compared to cardiac rehabilitation alone.