Active clinical trials for "Myocardial Infarction"

Our aim is to observe whether anti-TNF-alpha regimen will effect serum adiponectin concentration after myocardial infarction/reperfusion and also beneficial for the patients undergoing percutaneous coronary intervention (PCI).

This is a research study to evaluate the electrical properties of heart tissue. The purpose of this study is to determine the impedance (electrical resistance) of different tissues on the outer surface of the heart. This may be important for distinguishing scarred heart muscle from fat that can be seen on the surface of the heart. This information may eventually be utilized in patients that undergo a procedure (called catheter ablation) for the treatment of life-threatening heart rhythms. Investigators expect a detectable difference between the impedance of normal and infarcted myocardium (approximately 50 ohms).

The aim of this randomized controlled trial to investigate the effects of CPAP treatment on myocardial salvage index and clinical outcomes at 3 months in patients with OSA and ST-Segment Elevation Myocardial Infarction (STEMI) after primary percutaneous coronary intervention (PPCI).

The study aims to evaluate whether an early intracoronary administration of Fasudil Hydrochloride during primary PCI of STEMI can improve epicardial and myocardial perfusion as well as clinical outcomes.

Patients with acute myocardial infarction (AMI) are in critical condition. When primary percutaneous coronary intervention (PCI) was performing, no-reflow, reperfusion injury，heart failure, heart rupture, malignant arrhythmia maybe happen. It was reported remote ischemic preconditioning (RIPC) may play an effective endogenous cardiac protection. This study will investigate whether once RIPC before primary PCI or long-term RIPC can improve AMI patients short-term and long-term (1 year) prognosis. 400 STEMI patients undergoing primary PCI were randomly divided into 3 groups: long-term RIPC group (once preoperative RIPC and once RIPC/day after PCI), preoperative RIPC group (once preoperative RIPC), control group (without RIPC). 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 1 day, 1 month and 1 year after PCI. 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.

This is a single-centred, double blind randomized controlled trial comparing ticagrelor with placebo in clopidogrel and aspirin loaded patients.

INTRODUCTION: The pharmaco-invasive strategy is a safe alternative to primary percutaneous coronary intervention (PCI) in patients with ST elevation acute myocardial infarction, who cannot be in the cathlab in less than 120 minutes. However, previous studies of this strategy used the femoral artery as the main vascular access. Current studies show that the use of the radial artery in cases of acute myocardial infarction minimizes the risk of bleeding and mortality. Therefore, in the scenario where vascular access through the forearm vessels is recommended, the best timing to perform cardiac catheterization in the pharmaco-invasive strategy is not known. OBJECTIVE: To compare the 24-hour hemoglobin drop (acute anemia) between the fast pharmaco-invasive strategy (within 3 hours) and the standard pharmaco-invasive strategy (3 to 24 hours) in patients with acute myocardial infarction (AMI) by coronary occlusion treated in Sancta Maggiore hospitals in São Paulo and underwent to cardiac catheterization through the forearm vessels. METHOD: A prospective, randomized, multicenter study will be conducted in which 120 subjects will be randomly divided for fast and standard cardiac catheterization (1: 1). Stent implantation in the culprit vessel will be performed. The primary objective is to assess whether the fast cardiac catheterization is non-inferior to the standard strategy for a hemoglobin (Hb) drop within 24 hours. Considering in the control group an average drop of Hb 0.6 ± 1g / dl and that a drop greater than 3 g/dL of Hb is related to unfavorable clinical outcome, using a two-tailed alpha of 0.05 and a power of 90% to test the non-inferiority of the fast strategy with respect to standard strategy, each group will require 60 patients, totaling 120 individuals to include. However, if Hb fall in the fast strategy is greater than 3 g/dL and this result does not reproduce in the standard strategy, the study will allow us to show the superiority of the standard approach (between 3 and 24 hours).

This study aims to evaluate whether perioperative use of Shenfu Injection, as compared to placebo, could reduce infarct size assessed by cardiac magnetic resonance (CMR) in patients with acute anterior ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI).

The objective of the study is to demonstrate that in post-MI patients with symptomatic heart failure who receive optimal medical therapy for this condition, and with reduced LVEF ≤ 35% but low risk for SCD according to a personalised risk score, optimal medical therapy without ICD implantation (index group) is not inferior to optimal medical therapy with ICD implantation (control group) with respect to all-cause mortality.

This study is a randomized, double-blind, placebo-controlled, parallel clinical trial in a Chinese population with heart failure after myocardial infarction. The objective is to observe the efficacy and safety of Wenyang huoxue fang in the treatment of heart failure after myocardial infarction.