Active clinical trials for "Myocardial Infarction"

This is an observertional study aimed at Study the association of SIRT1(rs7069102 ) Gene polymorphism with premature myocardial infarction in young Egyptian patients

Rural Americans are more likely to be unhealthy, older, living in poverty, uninsured, and medically underserved. The CDC has made achieving health equity and improving cardiovascular health for rural Americans one of their Healthy People 2020 overarching goals. ST-Elevation Myocardial Infarction (STEMI) is a life-threatening cardiovascular emergency that frequently affects people without warning within the communities the Participants live and work. Patients with STEMI have a linear relationship between first medical contact to Percutaneous Coronary Intervention (PCI) time and mortality. Delays are particularly important in STEMI patients with cardiogenic shock, who experience an excess 3.3 deaths per 100 for every 10 minute delay to PCI (for PCI times between 60-180 minutes). Delayed PCI is also associated with a higher rate of long term morbidity, including congestive heart failure and repeat MI. Unfortunately, many rural EMS agencies fail to consistently achieve the recommended 90 minute PCI time goal. Rural agencies are less likely than urban/suburban agencies to meet time goals and this disparity exposes rural patients to excess morbidity and mortality. The American College of Cardiology/American Heart Association (ACC/AHA) endorse the need for prehospital strategies to reduce total ischemic time, particularly in rural settings.

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).

This study examines the relationship between angiographic coronary collaterals (Rentrop grades) and post-reperfusion microvascular injury. This study aims to assess the impact of coronary collateral circulation on intramyocardial hemorrhage incidence and extent.

To evaluate the biomarkers for the prognosis of coronary heart disease, patients with coronary heart disease will be recruited and followed up for at least 2 years.

Heart attacks caused by the complete blockage of a heart artery are treated by opening it with a stent. However, most people will also have 'non-culprit' narrowings found in their other arteries at this time. Although in general people do better if these non-culprit narrowings are also treated with stents if they look severe, this process has problems. This is because narrowings that look severe may be stable and not cause any trouble. For these people a stent is a wasted procedure and unnecessary risk. On the other hand, narrowings that are currently left alone because they appear mild, may progress and cause a heart attack. Participants who have had a heart attack will have a scan from inside the heart arteries during an angiogram (optical coherence tomography, OCT) and a magnetic resonance angiogram (MRA). If the investigators can show that it is possible to accurately predict which non-culprit narrowings are going to progress and which are going to stabilise, medical professionals may be able to better target their treatments after a heart attack.

The goal of this observational prospective cohort study is to learn about the pathophysiology of perioperative myocardial infarction/injury in high-risk patients undergoing major non-cardiac surgery. Participants will: Wear wearable device (Basler Band) for up to seven days after the operation or until hospital discharge Provide three blood samples. A venous specimen of blood (25 mL) will be collected preoperatively and on postoperative days 1 and 2. Be contacted to answer a questionnaire one year after the surgery.

The association between objectively measured physical activity intensities (light, moderate and vigorous), sedentary time and clinical outcomes has not been clarified in patients after a myocardial infarction. The overall objective of the study is to explore associations between accelerometer measured physical activity and clinical outcomes after a myocardial infarction. Moreover, the association between changes in physical activity and outcomes will be assessed.

Perioperative stroke is a devastating complication of cardiac surgery that is currently poorly characterized but occurs in 1-5% of patients and is associated with poor outcomes including increased mortality. Given the uncommon nature of this complication, relatively little is known about which factors predict these outcomes among those who experience a perioperative stroke. The study objectives are to identify predictors of mortality, length of stay and discharge disposition after perioperative stroke in cardiac surgery using the prospectively-collected American College of Surgeons National Surgical Quality Improvement Program database between 2005 and 2020.

A prospective cohort of relatively healthy individuals, using comprehensive clinical information, advanced imaging (including cardiac MRI), cardiovascular exercise physiology, metabolomics and genetic analysis. These findings will be correlated with adverse clinical outcomes including death, stroke and myocardial infarction. In selected cases, follow-up imaging and biomarker samples will also be obtained. These studies will enable us to begin to address a critical gap in our knowledge as to how best to interpret the very large amount of cardiovascular tests done in Singapore and how to better to predict outcomes and manage healthcare costs in our local populations