View clinical trials related to Acute Myocardial Infarction.
Filter by:Cumulative evidence has demonstrated that cardiac repair after acute myocardial infarction (AMI) is characterized by a series of time-dependent events orchestrated by the innate immune system. This begins immediately after the onset of necrotic cell death with intense sterile inflammation and myocardial infiltration of a variety of immune cell subtypes including monocytes and macrophages during the first several days after MI. There is increasing evidence to suggest inflammation is not limited to the infarcted myocardium and systemic imbalances in the post-infarct inflammatory cascade can exacerbate adverse remodelling beyond the infarct site. Therefore, it is very important that therapies seek to target the intricate balance between pro- and antiinflammatory pathways timely after AMI. Human mesenchymal stem cells (hMSCs) have been shown to exhibit immunomodulation, angiogenesis, and paracrine secretion of bioactive factors that can attenuate inflammation and promote tissue regeneration, making them a promising cell source for AMI therapy. However, it has been proved in our and other studies that perfusion of WJMSCs after 5 days of AMI can only slightly improve left ventricular end-diastolic volume, which is the most important indicator of left ventricular remodeling. Thus, WANIAMI Trial is a randomized, double-blind, placebo controlled, phase#study designed to assess the safety and feasibility of intravenous infusion of WJMSCs in the treatment of patients in the acute phase ( within 24h) with the both of ST-Segment-Elevation or Non-ST-Segment-Elevation AMI.
All patients in Iceland with STEMI (2008-2018) and NSTEMI (2013-2018) that underwent coronary angiography and had obstructive coronary artery disease were included. Information about patients and angiography results and treatment were obtained from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR). Survival was estimated with Kaplan-Meier method. Cox regression analysis were used to identify significant risk factors for long-term mortality. Relative survival was defined as observed survival divided by expected survival of the population of Iceland
The COVID-19 pandemic has had dramatic effects on health systems and on non-COVID health care. Using French inpatient claims data and retrospectively collected clinical data, the investigators will assess the changes in hospital admissions for acute cardiovascular and neurovascular conditions in France during and after the national lockdown.
Despite advancements in medical care, ischemic heart disease (IHD) remains the leading global cause of death. IHD develops through lipid accumulation into the coronary arteries with subsequent formation of larger atherogenic plaques. During myocardial infarction (MI), a plaque ruptures and subsequent occlusion leads to a death of the heart muscle. The tissue is rapidly replaced with a scar, which may later lead to heart failure (HF). Optimally, disease biomarkers are analyzed from blood, provide insight into the disease progression and aid the evaluation of therapy efficacy. Unfortunately, no optimal biomarkers have been identified for IHD. The vast but uncounted number of patients with undiagnosed IHD, benefitting from an early diagnosis, underscore the dire need for an IHD biomarker. Epitranscriptomics, the study of posttranscriptional modifications on RNA, has recently been properly re-established. This expanding field is uncovering a new layer of regulation, controlling processes ranging from cell division to cell death. Over 170 modifications have been identified as posttranscriptional marks in RNA species. These modifications influence RNA metabolism, including export, stability, and translation. One the most common and intensively studied RNA modification is the N6-methyladenosine (m6A), the abundance and effects of which are determined by the interplay between its writers, readers and erasers. Recent findings suggest a local dysregulation of the m6A dynamics in the myocardium, coalescing in signalling pathway and contractility related RNA transcripts during hypertrophy, MI and HF. While these early reports have focused on the myocardium, the role of the m6A in the circulation during IHD remains unexplored. We hypothesize the IHD pathophysiology to be reflected in the epitranscriptome of the circulating RNA. The objective of the IHD-EPITRAN is to identify new IHD biomarkers via cohort comparison of the blood epitranscriptomes from patients with: (1) MI related with coronary angioplasty, (2) IHD treated with elective coronary artery bypass grafting, (3) aortic valve stenosis treated with valve replacement and (4) IHD-healthy controls verified with computerized tomography imaging. The RNA fractionation is followed by the quantitative modifications analysis with mass spectrometry. Ultimately, nanopore RNA sequencing with simultaneous m6A identification in their native sequences is carried out using recently published artificial intelligence-based algorithm.
To validate the prognostic importance of the burden of new-onset atrial fibrillation (NOAF) complicating acute myocardial infarction (AMI) in a prospectively designed hospital-based registry. To characterize those factors that contribute to the progression of post-MI NOAF burden. To establish a prediction model for the risk stratification of patients with NOAF complicating AMI. To explore the clinical usefulness of NOAF burden in guiding the anticoagulation therapy among patients with post-MI NOAF.
The purpose of this study is to asses the prognostic value of lung ultrasound in patients with ST-segment elevation acute myocardial infarction.
National, multi-center, observational, prospective, and retrospective cohort study. The study does not provide for intervention in routine clinical practice. Key goals: • Obtaining real-world evidence on the diagnosis and treatment of AIM in Russian hospitals, including both long- and short-term findings and outcomes (i.e. during hospitalization, and 6-12 months after the diagnosis establishment). - Evaluation of the applied approaches to the management of AIM patients for compliance with the clinical recommendations across various hospitals, with a breakdown by equipment status; - Assessment of patients' treatment adherence after 6 and 12 months. The expected project duration is 3 years. The study subjects will be recruited during the first 24 months unless the investigators decide to terminate or extend the study period. The period of observation for each patient is 6 to 12 months. The project involves retrospective and prospective collection of information from medical records. All patient data shall be recorded by the Investigator into an approved electronic case report form (eCRF). Recruitment period: 2020-2022. Expected number of subjects: 10,000.
Acute myocardial infarction (AMI) is a life-threatening condition and a cause of functional disability. After reperfusion therapies and pharmacological strategies, patients suffered great pain physically and mentally. How to improve the quality of life and the prognosis in patients with AMI is a hot topic in the field of cardiac rehabilitation now. In this study, a randomized, controlled and prospective clinical trial is designed for patients with AMI to improve exercise capacity, cardiometabolic parameters, as well as quality of life by an individualized, low-cost exercise intervention we developed after evaluation by Cardiopulmonary Exercise Tests (CPET). Serial CPET are performed to prospectively measure changes in aerobic exercise capacity, and the MOS item short form health survey（SF-36）are constructed to survey life quality. What's more, echocardiography and NT-proBNP are also assessed.
Randomized studies may often be burdened by the selective nature of patient inclusion thus not reflecting real-world outcomes. This is evident from the discrepancy in the mortality rates reported in major randomized trials enrolling patients with acute myocardial infarction (AMI), as compared with registry data. The primary objective of this observational study is to assess short- and long-term outcomes of unselected, real-world patients presenting with AMI and treated with contemporary percutaneous coronary intervention (PCI).
The COVID-19 pandemic highlights the importance of the prognosis of co-morbidities, such as coronary artery disease, which significantly increase the risk of mortality in patients infected with SARS-CoV2. Investigators have recently studied the complex links between respiratory infections, particularly pneumonia, and type 2 myocardial infarction (MI) in many respects. The etiology of type 2 MI is based on an imbalance of myocardial oxygen supply/need in the absence of rupture/erosion of atheromatous plaques. Based on the RICO survey data, the investigators investigated whether COVID-19-related sepsis and/or respiratory failure could be an underlying mechanism of MI2.