View clinical trials related to Acute Coronary Syndrome.
Filter by:The Pre-Hospital 12-lead electrocardiogram (PHECG) is a simple test that helps ambulance clinicians assess patients with suspected acute coronary syndrome (heart attack), and provides clinical data to inform ongoing care. This project builds on previous work by this team, which found that one in three eligible patients did not receive a PHECG, but those that did had a lowered risk of short-term death. In this study the investigators will update that work, and explore reasons for variations in practice - highlighting opportunities to improve care and outcomes. Using routinely collected data and qualitative methods, the investigators will research patient, practitioner and contextual factors contributing to the decision to administer a PHECG. The aim is also to develop an intervention to increase the proportion of eligible patients that receive a PHECG, and to produce a proposal for further funding to test this intervention in a subsequent randomised trial.
Platelets play a key role in the athero-thrombotic process. However, the in vivo mechanism accounting for thrombus growth at site of coronary atherosclerotic lesion has not been fully elucidated. While platelet adhesion and aggregation on the thrombogenic core of atherosclerotic plaque is an established mechanism for thrombus growth, the role of systemic factors, which may contribute to thrombus via amplification and propagation of platelet aggregation, is still to be clarified. There is a growing body of evidence that lipopolysaccharides (LPS), are implicated in athero-thrombosis. Circulating levels of endotoxins have been associated with human atherosclerosis progression, particularly in smokers or in patients with infections. Furthermore, endotoxins seem to be implicated in the thrombotic process through several mechanisms including up-regulation of macrophage tissue factor expression and amplification of platelet response upon interaction with Toll-like receptor 4. The relationship between endotoxins and platelets may be relevant in the context of acute coronary syndromes as endotoxins could locally amplify platelet-derived thrombus growth but this issue is still unexplored. Previous studies demonstrated that low-grade endotoxemia is detectable in human circulation, likely as consequence of enhanced gut permeability, and may be responsible for leucocyte-platelet aggregate and eventually thrombosis. The investigators hypothesize that low-grade endotoxemia may be observed in patients with coronary heart disease and may favor, at site of coronary unstable plaque, thrombus growth. To explore this issue, Escherichia Coli (EC)-LPS concentration and biomarkers of platelet activation will be measured in coronary thrombus and intra-coronary blood of patients with STEMI and stable angina (SA), respectively, and in peripheral circulation of both patients and controls. EC DNA will be searched in serum of all patients by polymerase chain reaction (PCR). Furthermore, to substantiate that LPS could be biologically active, immune-histochemical analysis of thrombi and in vitro studies will be performed to assess the interplay between LPS and platelet activation.
This Phase IV, multicenter trial is designed to assess the efficacy of prasugrel in preventing the formation of blood clots in Taiwanese patients with ACS who have been treated with PCI.
A randomized, open-label, single dose, crossover study to evaluate pharmacokinetic profiles and safety/tolerability of CKD-357 in healthy volunteers
Coronary artery disease is defined as a disease of the arteries that vascularize the heart, resulting in myocardial ischemia, i.e. insufficient blood supply to the heart muscle. Eventually, it may be responsible for acute coronary syndrome that includes unstable angina (chest pain) and myocardial infarction (necrosis of the heart muscle). The main cause of this disease is atheroma, and management involves reducing modifiable cardiovascular risk factors (sedentary lifestyle, smoking, obesity, high blood pressure, diabetes, dyslipidemia). Every year, this disease affects more than 120 000 people in France, aging 65 years on average. In this real public health problem, there is a significant discrepancy between the excellence of the management of the acute incident and the inadequacy of the re-adaptive and educational management of the care suites. In fact, it is noted that hospitalization times are short given the progress of myocardial revascularization, associated with a low intra-hospital mortality rate, 3% but the places in rehabilitation programs ("Soins de Suite et de Réadaptation" or "SSR") are too limited (25% of the patients are included in these programs). Physical rehabilitation has proven effective for decades, with robust evidence of decreased recurrence and mortality (-20%). At the Groupe Hospitalier Mutualiste of Grenoble, France, patients are offered two courses of treatment in post-myocardial infarction: - A therapeutic education program: SCarabée, - A rehabilitation program (SSR) The therapeutic education program aims to help the patient identify his needs, acquire knowledge, strengthen his resources and finally develop with him a project to improve his quality of life. SSR offers physical rehabilitation as a treatment for infarction, which improves cardiovascular function, which is assessed by the cardiorespiratory test. Is the Scarabée therapeutic education program is sufficient to help the patient improve his physical abilities? This study aims to answer this question, by setting up a reinforced monitoring of the evolution of the cardiovascular function of the patients included in the SCArabée program, via cardiorespiratory tests. The results of this first pilot study will potentially lead to a second randomized study comparing therapeutic education associated with Adapted Physical Education versus therapeutic education alone for the improvement of cardiorespiratory functions and the quality of life of these patients.
ACS are a potent risk factor for AF, with new onset AF occurring in up to 1 in every 5 patients hospitalized with an ACS. Despite its relatively frequent occurrence and the many etiologic factors involved in its pathogenetic condition, the frequency and prognostic significance of AF complicating ACS remain unclear
Contrast-induced nephropathy (CIN), an acute kidney injury resulting from the administration of intravascular iodinated contrast media, is an important cause of morbidity/mortality following coronary angiographic procedures in high-risk patients. Despite preventative measures intended to mitigate the risk of CIN, there remains a need for an effective intervention. Dietary inorganic nitrate therapy, which through its chemical reduction in the body delivers nitric oxide has shown promise in attenuating CIN, but its effectiveness in preserving long-term renal function is unknown.
The primary goal of the PRAISE study is to develop a diagnostic algorithm that allows the prediction of acute coronary syndrome in stroke patients with elevated levels of cardiac troponin.
This study aims to compare the clinical profile and outcomes of acute coronary syndrome patients with diabetes and without diabetes.
• 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.