Active clinical trials for "Myocardial Infarction"

The purpose of this study is to answer, among others, the following questions: 1) What are the outcomes when using the radial artery as a bypass graft in coronary artery bypass surgery (CABG)? 2) Can multidetector computed tomography (CT) be used to reliably evaluate coronary artery bypass graft patency?

To determine the association between flavonoids intake and the prevention of incident cardiovascular disease (CVD).

To explain the extremely low cardiovascular mortality among Physicians' Health Study (PHS) participants by ascertaining all cardiovascular and total deaths among the 90,457 physicians who returned enrollment forms but were not randomized into the study. Also, to compare the mortality experience of randomized physicians with various subgroups of non-participants.

To examine the natural history of mortality due to coronary heart disease in post-myocardial infarction patients from the Beta-Blocker Heart Attack Trial (BHAT) and the Aspirin Myocardial Infarction Study (AMIS).

To continue surveillance of cardiovascular disease risk factors in the seven-county area of Minneapolis-St. Paul.

To determine the predictors of perioperative cardiac morbidity and mortality in patients at high risk who underwent major noncardiac surgery with general anesthesia.

Approx. 65% of resuscitated patients at the intensive care unit for internal medicine are due to myocardial infarction. Almost all patients are initially diagnosed and treated in the cath lab. Therapy usually consists of one or more stent implantations. After implantation of a coronary stent, dual platelet inhibition is necessary for 12 months. Insufficient platelet inhibition causes an pronounced increase in risk of stent thrombosis. Therefore, secured inhibition and knowledge of the individual platelet function is valuable.

Myocardial injury is common in patients without acute coronary syndrome, and therefore international guidelines propose a classification of patients with myocardial infarction by aetiology. This differentiates between myocardial infarction due to plaque rupture (type 1) and myocardial oxygen supply-demand imbalance (type 2) in other acute illnesses. However, these guidelines have not been widely adopted as the diagnostic criteria for type 2 myocardial infarction are not clearly defined. Patients with type 2 myocardial infarction have poor long term outcomes, with at least twice the mortality at five years compared to those with an index type 1 myocardial infarction. Despite the majority of deaths being attributable to non-cardiovascular events, the rate of future type 1 myocardial infarction or cardiovascular death is similar regardless of index classification. If this future risk is related to the presence of underlying coronary artery disease, then there may be the potential to improve outcomes through targeted investigation and secondary prevention. The investigators will undertake a systematic evaluation of the mechanism of myocardial injury and the role of coronary artery disease in 100 patients with elevated cardiac troponin concentrations where the diagnosis is likely to be type 2 myocardial infarction. These studies will help improve the assessment of patients with myocardial injury, refine the diagnostic criteria for type 2 myocardial infarction, and aid the design of future therapeutic trials.

The study is being performed to evaluate a new portable medical device, the Creavo Vitalscan Magnetocardiograph (Vitalscan) on patients who have had a confirmed myocardial infarction (heart attack) within the previous 12 weeks.

The current study evaluated prognostic implication of comprehensive physiologic assessment using fractional flow reserve, coronary flow reserve (CFR) and index of microcirculatory resistance (IMR).