View clinical trials related to Myocardial Reperfusion Injury.
Filter by:The RIC-AFRICA trial is a multi-centre, sham-controlled, double-blinded, randomised controlled trial (RCT) involving 1200 ST-segment elevation myocardial infarction (STEMI) patients presenting within ≤ 24 hours of myocardial infarction (MI) onset, across approximately 20 sites in four sub-Saharan African countries (South Africa, Kenya, Sudan and Uganda). Patients presenting with STEMI and deemed ineligible for the RIC AFRICA RCT because they present >24 hours from MI onset but less than 72 hours, will be recruited into the observational arm of the study with the same endpoints as the trial. The purpose of the RCT is to determine whether Remote Ischaemic Conditioning (RIC) can reduce the rates of all-cause death and early post-myocardial heart failure at 30-days in STEMI patients treated predominantly with thrombolytic therapy.
The purpose of this study is to investigate the efficacy and mechanism of Adipokines Cardiac Protection in Obese Patients With acute myocardial infarction (AMI) Who Have Undergone Percutaneous Coronary Intervention (PCI).
The study will analyze the incidence, clinical outcomes and predictors of myocardial injury in a large patient population with COVID-19 treated in Mount Sinai Hospital (MSH) system. In addition, the study team will explore the association between high-sensitivity troponin I (TnI) levels and clinical characteristics, biomarkers, cardiac tests data and treatment approaches to uncover the potential mechanisms responsible for COVID-19 induced myocardial injury.
The current study aims to evaluate different doses of PC-SOD injections for efficacy and safety in comparison to placebo, in order to provide a basis for future clinical trials in terms of experimental design and dose selection.
This study aims to determine whether combination with regulatory T cell (Treg) levels and cardiac magnetic resonance imaging (CMR) are predictive of the severity of reperfusion injury following myocardial infarction and the prognosis in STEMI patients receiving primary percutaneous coronary intervention (PPCI).
This study is a single-center, prospective controlled trial addressing effectiveness of empagliflozin on cardiac-renal injury in patients with STEMI. Patients were randomized using a computer-generated sequence to either placebo or empagliflozin at a 1:1 ratio. Investigators, participants, and other study personnel were blinded to the assigned treatment for the duration of the study. The primary objective of this study is to investigate the effects of empagliflozin on myocardial infarct size measured using cardiac magnetic resonance (CMR) methods at 3 months. Key secondary endpoint: incidence of CIAKI within 48h after PCI. Inclusion Criteria:Patients with STEMI who were admitted to the Chinese PLA General Hospital were recruited between Ocotor 2018 and January 2019. STEMI was defined as typical chest pain lasting >30 minutes within the previous 12 hours, a clear ST-segment elevation of >0.1 mV in two or more contiguous electrocardiographic leads, and elevated blood levels of troponin T.Exclusion Criteria:Cardiogenic shock ,Hypoglycaemia ,Diabetic ketoacidosis,Genital and urinary infections,History of myocardial infarction,Stent thrombosis,Previous coronary artery bypass surgery,Type 1 Diabetes,Severe hepatic insufficiency,Advanced cancer patients,eGFR<30 ml/min. All patients were informed of the potential risks (genital mycotic infections, urinary tract infections, diabetic ketoacidosis) associated with empagliflozin and then required to submit written informed consent before being included in the study. Patients were randomized using a computer-generated sequence to either placebo or empagliflozin at a 1:1 ratio. Patients in the empagliflozin group were treated with empagliflozin whereas patients in the control group were given placebo. The treatment started 30 minutes before PCI with a dose of 10 mg empagliflozin or placebo administered in the ambulance. After admission, patients were treated with 10 mg empagliflozin once daily for 3 mouths.
Heart failure (HF) is an enormous health burden affecting approximately 5.1 million people in the US and is the cause of 250,000 deaths each year. Approximately 50% of HF is caused by myocardial ischemia and requires immediate restoration of coronary blood flow to the affected myocardium. However, the success of reperfusion is partly limited by intramyocardial hemorrhage, which is the deposition of intravascular material into the myocardium. Hemorrhagic reperfusion injury has high prevalence and patients have a much greater risk of adverse left ventricular remodeling, risk of fatal arrhythmia, impaired systolic function and are hospitalized at a greater rate. Recent magnetic resonance imaging techniques have improved assessment of reperfusion injury, however, the association between MRI contrasts and reperfusion injury is highly unclear, and lacks specificity to IMH. Improved imaging of IMH and accurate knowledge about its spatial and temporal evolution may be essential for delivery of optimal medical therapy in patients and critical to identify patients most at risk for adverse ventricular remodeling. The overall goal is to investigate the magnetic properties of hemorrhage and develop MRI techniques with improved specificity to hemorrhage. New MRI techniques permit noninvasive assessment of the magnetic susceptibility of tissues and can target tissue iron. Therefore, the investigators hypothesize that MRI imaging of myocardial magnetic susceptibility can map hemorrhagic myocardium. The investigators will perform a longitudinal observational study in patients after reperfusion injury to validate these methods, compare the methods with conventional MR contrasts and develop MR methods for imaging humans.
This prospective randomized study elucidates the effects of exogenous nitric oxide delivered to the extracorporeal circulation circuit for cardioprotection against ischemia-reperfusion injury during coronary artery bypass graft surgery with cardiopulmonary bypass.
Acute myocardial infarction is a major cause of mortality and morbidity. Primary percutaneous coronary intervention (pPCI) is currently the most effective treatment strategy in acute myocardial infarction. However, a sizable number of patients fail to restore optimal myocardial reperfusion, mostly because of the 'no-reflow' phenomenon. Melatonin is the chief indoleamine produced by the pineal gland, and a well-known antioxidant and free radical scavenger. Several studies have shown that melatonin protects against ischemia/reperfusion injury (IRI). In our previous study, melatonin markedly reduced infarcted area, improved cardiac function and reduced lactate dehydrogenase release in rats. The investigators planned to research the cardioprotective effects of intravenous melatonin administered prior to reperfusion and continued after restoration of coronary blood flow in patients with ST segment elevation myocardial infarction undergoing pPCI.
Assessment of myocardial ischemic-reperfusion injury during off- and on- pump CABG.