Active clinical trials for "Myocardial Infarction"

Background:Diabetes and smoking are common factors found to increase platelet reactivity in patients undergoing primary PCI. Objective: Compare the individualized and combined effects of smoking and diabetes on the antiplatelet activity in patients undergoing primary PCI. Methods: sixty patients were recruited in this study. Patients were allocated to one of four groups according to the diabetes and smoking status. Non smokers- non diabetic patients, smokers non diabetic patients, non smokers diabetic patients, and smokers diabetic patients, 15 patients in each group. All patients received 180 mg ticagrelor before PCI. Platelet reactivity index(PRI) and maximum platelet aggregation were measured 24 hours after ticagrelor loading dose for each patient as indicators for antiplatelet efficacy. PRI and/or MPA values > 50% were defined as high platelet reactivity.

This study aims to investigate and evaluate clinical performance and quality measures for adults with acute ST-elevation myocardial infarction (STEMI) in China. Further more, the investigates like to develop quality improvement strategies and relevant tools focusing on treatment and clinical outcome in patients with STEMI. This is a annually survey , through consecutively recruiting all eligible inpatients and collecting relevant medical information, the performance of all participating hospitals. Further, quality improvement strategies including summary of clinical performance and quality measures, clinical pathways and team building will be organized for the purpose of quality improvement. All hospitals will consecutively recruit qualified patients in the same method adopted in baseline period. Then the reperfusion rates and other performance measures will be compared annually.

The rising number of patients with chest pain without myocardial infarction has made accurate diagnosis important. Unnecessary invasive coronary angiographies are increasingly prevalent. These are both costly and lead to rare but serious adverse events. Recent studies suggest cardiac Troponin I is more cardiac specific than cardiac Troponin T. In this study we will investigate whether using cardiac Troponin I lead to fewer unnecessary procedures in clinical practice (i.e. invasive coronary angiography and non-invasive tests)

CLEAR SYNERGY is an international multi center 2x2 randomized placebo controlled trial of colchicine and spironolactone in patients with STEMI. Subjects enrolled in the main CLEAR SYNERGY trial will be asked to participate in this sub study (n=670) to undergo: Evaluation of markers of neutrophil activity at randomization (baseline) and 3 months follow-up in the colchicine versus placebo groups, and; Examination of clinical and genetic factors that determine heterogeneity of treatment response and distinguish colchicine responders from non- responders. Participants undergo a blood draw at baseline and 3 months follow-up as part of the main trial, and participants who also participate in this sub study will have an additional 2 tablespoons of blood drawn. The sub study objectives are to: Assess the effect of colchicine on neutrophil activation in response to STEMI. Examine clinical and genetic factors that determine heterogeneity of treatment response anddistinguish colchicine responders from non- responders. Explore the derivation of a risk score that includes markers of neutrophil activity and is associated with adjudicated MACE over 3 years after STEMI, and assess the impact of colchicine on the relation between this risk score and MACE.

The purpose of this study was to evaluate the efficacy and safety of ketotifen (MC stabilizer) on the basis of standard treatment after primary PCI in STEMI patients. The ketotifen group and the control group were the ketotifen group and the control group. The control group continued to receive STEMI standard treatment. The ketotifen group received ketotifen for 3 months on the basis of standard treatment within 24 hours after primary PCI, and was followed up for 1 year. Infarct size, as well as differences in echocardiography, markers of two-dimensional speckle tracking, inflammatory factors and MC markers, and major adverse cardiovascular events.

Aim of this single center randomized open label trial with blinded in-hospital outcomes assessment is designed with aim to compare manual thrombus aspiration followed by percutaneous coronary intervention (PCI) strategy with PCI alone.

Despite the year-on-year decrease, coronary artery disease (CAD) still remains one of the leading cause of mortality worldwide. With advances in technology and our understanding of cardiac disease, we can now treat CAD using minimally invasive interventional techniques. This has revolutionised treatment for and improved the lives of many patients with CAD. Although trials have assessed various therapeutic strategies in various populations, real-world evidence of intervention and medical treatment among patients with CAD is increasingly recognised as an important part of providing safety and efficacy data and improving the care we provide. This data will add to that literature by assessing the characteristics and outcomes of patients with CAD. It will also identify and characterise predictors of outcomes, improve risk stratification and diagnostic evaluation.

Prospective biomedical research study

The addition of the SGLT2 inhibitor empagliflozin 10mg once daily to standard-of-care therapy administered early following acute myocardial infarction will result in a greater attenuation of adverse left ventricular remodelling, compared with matched placebo, in patients with left ventricular systolic dysfunction as a result of an acute myocardial infarction.

Patients with chest pain and persistent ST segment elevation (STE) may not have acute coronary occlusions or serum troponin curves suggestive of acute necrosis. Our objective is the validation and cost-effectiveness analysis of a diagnostic model assisted by artificial intelligence (AI). Our hypothesis is that an AI analysis of the surface electrocardiogram allows a better distinction of patients with STE due to acute myocardial ischemia, from those with another etiology. This is a prospective multicenter study with two groups of patients with STE: I) coronary arteries without significant lesions and without serum troponin curve suggestive of acute necrosis, II) myocardial infarction with acute coronary occlusion. A manual centralized electrocardiographic analysis and another by AI algorithms will be performed.