Active clinical trials for "Myocardial Ischemia"

• The aim of the VIP study is to investigate the impact of vulnerability markers (inflammatory serum biomarkers for systemic vulnerability, coronary shear stress and vulnerability mapping for pancoronary vulnerability, and imaging-based plaque features for systemic vulnerability) on the rate of major adverse cardiovascular events caused by progression of the non-culprit lesion in patients with acute ST or non-ST segment elevation myocardial infarction who undergo revascularization of the culprit lesion during the acute event. Furthermore, the study will evaluate the rate of progression of non-culprit lesions towards a higher degree of vulnerability, based on coronary computed tomography angiographic assessment at 1 year after enrollment.

The presence of chronic blockage of coronary arteries, which we may accept as the terminal point of atherosclerotic coronary artery disease, is closely associated with a poor prognosis. The Discovery of markers that may distinguish patients with a high risk of chronic total occlusion development among patients monitored with the diagnosis of stable coronary artery disease may be important for being able to reduce the increased mortality and morbidity rates. Oxidative stress status may be one of the markers that play a role in and/or show the development of chronic total occlusion. It was reported that it has a role in the progression, erosion, and instability of atherosclerotic plaques in coronary arteries. To the best of our knowledge, the relationship between chronic total occlusion development and oxidative stress status in stable coronary artery disease has not been studied. This study investigated the relationships in the oxidative stress status evaluated over TAS, TOS, OSI, Thiol/Disulfide Homeostasis, and antioxidative vitamin levels and possible differences in patients with noncritical coronary artery disease and those with chronic total occlusion.

Ischemia-guided revascularization is the cornerstone of contemporary management of coronary artery disease (CAD). Coronary physiological assessment is advocated in the catheter laboratory to guide percutaneous coronary intervention (PCI), and it is widely accepted that an FFR ≤ 0.80 is a good indicator for vessels to benefit from revascularization. Nevertheless, a significant proportion of PCI patients continue to experience adverse events related to both stented segment and/or residual or diffuse disease. Our group recently demonstrated the feasibility of pullback pressure gradient (PPG) derived from virtual Quantitative Flow Ratio (QFR) pullback curve, which is an index of atherosclerosis functional pattern and can be used to epitomize the pathophysiological pattern of CAD as focal or diffuse. In this regard, the current study will investigate the incremental value of PPG added to QFR haemodynamic assessment in ischemia-causing vessels received PCI in predicting adverse outcomes.

18F-FMPP is a novel PET myocardial perfusion imaging (MPI) tracer which targets to mitochondria complex I (MC-I). Preclinical animal studies have shown that its uptake is highly uniform and long in the heart and rather low in the liver. It may be a promising tracer for myocardial perfusion imaging. In addition, as a myocardial PET tracer, it is capable of quantifying absolute myocardial blood flow. Thus this prospective and open-label study is going to evaluate the diagnosis performance of 18F-FMPP PET MPI in suspected or known CAD patients who will be referred for invasive coronary angiography (ICA).

The REDUCE-IT Canada SA Study is a cross-sectional study aiming to determine the proportion of study participants who meet the Health Canada-approved indication for icosapent ethyl (IPE;Vascepa®).

One-center, observational, non-interventional, prospective study of the efficacy of azilsartan medoxomil in patients with arterial hypertension associated with stable ischemic heart disease and type 2 diabetes mellitus.

Ten-fifteen percent of acute coronary syndromes without ST-segment elevation (NSTE-ACS) are caused by intermediate lesions without signs of unstable plaque. In this subset of patients, fractional flow reserve (FFR) has some drawbacks and may not be always able to predict outcome, especially when negative (above 0.80). In this particular nique of patients, advanced imaging techniques are suggested by International guidelines. However, it is actually unknown how these techniques may impact treatment strategies. With the present study, the investigators want to characterize the mechanism of disease in this particular subset of patients through multimodality imaging (intravascular ultrasound-near infrared spectroscopy (IVUS-NIRS), optical coherence tomography (OCT)) in order to understand the proper treatment.

This is a clinical trial to test the clinical feasibility and safety of a novel CMR protocol, combined with a specific breathing maneuver to identify myocardial regions exposed to severe coronary artery stenosis.

Demonstrate in a large multicenter population the diagnostic performance of a pre-commercial on-site, local, CT angiography derived FFR algorithm in comparison to invasive FFR.

The purpose of the study was to analyze negative affectivity (NA) and social inhibition (SI) inquired by DS14 score in type D personality (distressed personality) to the relation of autonomic regulation of heart function (HRV) and immune response (T lymphocyte) among obese patients within coronary heart disease group (CHD). As stress is the key psychological activator of the hypothalamic-pituitary-adrenal axis (HPA axis) and therefore an important risk factor for diminished immune competency and prevalence of chronic conditions such as obesity, investigators chose exercise as the stress release intervention, especially as chronic stress may have a role in obesity, related to initiation or exacerbation of the condition. Abnormal regulation of the hypothalamic-pituitary-adrenal axis is additionally associated with chronic inflammatory conditions. Proinflammatory T-lymphocytes are present in visceral adipose tissue and may contribute to local inflammatory cell activation before the appearance of macrophages, suggesting that these cells could play an important role in the initiation and perpetuation of adipose tissue inflammation.