Active clinical trials for "Myocardial Infarction"

This study will investigate the effect of a 12-weeks cardiac rehabilitation training (HIIT, MICT) program on VO2peak and cardiac fibrosis in patients, and evaluate the effects of HIIT on endothelial function, microvascular obstruction, body fat, inflammation, arrhythmia and psychology .

Perioperative Myocardial Infarction (PMI) is a major contributor to perioperative mortality and morbidity with overall incidence of 5-16%. It is associated with increased 30-day mortality of 11.6% vs 2.2% of patients without PMI in non-cardiac surgical patients. However, its recognition and diagnosis remains challenging as the typical symptoms and findings of ischemic MI may be masked by post-operative changes and pain management. In this study, the investigators hope to determine if colchicine decreases the incidence of MINS in high risk surgical patients undergoing non-cardiac surgery and optimally establish colchicine as a viable therapy to improve perioperative cardiovascular outcome in those patients.

This is a prospective, multi-center, single-group, target-value clinical study. The primary safety end points are major adverse cardiovascular events (MACCE) 30 days after device implantation. The primary efficacy end point is the end of left ventricular systolic volume index (LVESVI) reduction at 6 month. The secondary observational end points includes immediate success rate of the procedure, all-cause mortality, cardiac death, rehospitalization rates and MACCE occurrence rate within 12 month. Besides, left ventricular end systolic volume index (LVESVI) change at 30 days,12 months, left ventricular ejection fraction (LVEF), left ventricular end-diastolic volume index (LVEDVI), 6 minutes walk test, heart function evaluation (NYHA classification) and quality of life (EQ-5D) at 30 days, 6 months, 12 months will also be evaluated. After statistical hypothesis and sample size estimation, the sample size of this clinical trial was 117 cases. All subjects were followed up 30 days, 6 months and 12 months after implantation of the Heartech® left ventricular partitioning device. All relevant clinical data were managed by professional data management center, and all relevant clinical data were statistically analyzed by third-party statistical center.

The purpose of the study is to investigate the changes of myocardial biomechanics and efficacy of doxycycline in patients with primary anterior STEMI.

The aim of this study is to investigate the cost-effectiveness of remote ischemic conditioning as an adjunct to primary percutaneous coronary intervention from the perspective of a Danish healthcare system.

Coronary obstruction by an occlusive thrombus complicating a ruptured or eroded atherosclerotic plaque is the most frequent pathologic substrate of acute myocardial infarction (AMI). Timely restoration of perfusion and thereby myocardial salvage is the single most important objective in the management of patients with ST segment-elevation myocardial infarction (STEMI). To address these uncertainties, our study aims to evaluate the role of RT in patients who are most likely to benefit from it (thrombus grade 4 and 5) using a sensitive, quantitative, and reproducible parameter; CMR-derived myocardial salvage. also, to determine whether Rheolytic Thrombectomy (RT) before conventional PCI to the culprit vessel as compared to conventional PCI (with or without MTA) results in improved myocardial salvage; and to identify clinical and angiographic determinants of any difference observed between both treatment groups.

Patients with acute myocardial infarction (AMI) are in critical condition especially without emergency reperfusion therapy. For example, heart failure, heart rupture, malignant arrhythmia are in high level. It was reported remote ischemic preconditioning (RIPC) may play an effective endogenous cardiac protection. This study will investigate whether long-term RIPC can improve the short-term and long-term (1 year) prognosis of AMI patients without emergency reperfusion therapy. 220 AMI patients without emergency reperfusion therapy were randomly divided into 2 groups: long-term RIPC group (once RIPC/day for a year) or control group (routine treatment). Cardiac troponin (TNI), high-sensitivity C-reactive protein (hsCRP), adenosine, vascular endothelial growth factor (VEGF), hypoxia inducible factor-1 (HIF-1), echocardiography and magnetic resonance（MR）were detected in hospital, 1 month and 1 year after discharge. Patients will be followed up by telephone at the end of one year. The major adverse cardiovascular events (MACE) include cardiovascular death, spontaneous myocardial infarction, unplanned revascularization and stroke.

During a heart attack, an artery carrying blood and oxygen to the heart becomes blocked, which causes damage to the heart muscle. When possible, a clot-busting drug is given or a procedure called angioplasty is performed soon after a heart attack starts, to open up the blocked artery and restore blood flow to the heart. While this can be an effective treatment to reduce permanent damage to the heart, patients can still experience heart failure afterwards. Consequently many patients require medications to support their heart after a heart attack. Recent research has shown a new technique called Remote Ischemic conditioning or RIC, is effective at protecting the heart muscle in a heart attack. RIC is produced simply by repeated inflation and deflation of a blood pressure cuff on an arm or leg to temporarily cut off and then restore blood flow to that limb. The investigators believe this triggers the release of molecular factors that protect heart muscle. In a recent study in humans, it reduced the amount of permanent damage to the heart muscle when applied before the angioplasty procedure. The investigators recent animal studies have shown that RIC may also help the heart muscle recover after a heart attack if applied everyday during the month after a heart attack, by preventing heart failure. This is important for two reasons: first, currently the investigators can only treat heart failure with medications, and second, some people have heart attacks but are not suitable to have angioplasty and so are at greater risk of heart failure. Daily RIC may provide an easy and effective new treatment to prevent heart failure after a heart attack. This application proposes a preliminary study in humans to see if daily RIC can help heart muscle recovery after a heart attack.

The investigators planned to research the cardioprotective effects of intravenous liraglutide on reperfusion injury.

Compare with regular regimen, the aim of this study is to testify whether having more statin during PCI will benefit in Chinese population, and to find out optimal dose of the drug for patient after PCI.