Active clinical trials for "Myocardial Ischemia"

The aim of this study is to examine the reproducibility of postprandial coronary heart disease (CHD) risk marker and sleep responses to acute exercise bouts and to quantify the magnitude of individual variability in responses using a replicated crossover design. Healthy, recreationally active men will complete two identical rest control and two identical exercise (60 min at 60% maximum oxygen uptake) conditions in randomised sequences. Fasting and postprandial venous blood samples, arterial blood pressure and arterial stiffness measurements will be taken at pre-determined intervals, and sleep duration and quality will be assessed. Reproducibility and individual variability will be examined using bivariate correlations and linear mixed modelling.

The study was designed to evaluate the left ventricular longitudinal strain and strain rate assessed by 2D-STI in patients with coronary microvascular dysfunction (CMD) or obstructive coronary artery disease (CAD) , to investigate the effect of different types of ischemic heart disease on the LV systolic function, and to explore the value of LS on the diagnosis of coronary microvascular dysfunction.

Coronary artery diseases (CAD) are multifactorial diseases which prognosis and risk factors are improved with increased physical activity (PA). Thus, CAD rehabilitation (CR) program is mainly based on recovering sufficient exercise capacity and promoting regular personalized PA associated to modifications in lifestyle habits to improve control of cardiovascular risk factors and health-related quality of life. However, most of patients do not achieve the recommended levels of PA which may be partly due to numerous barriers that hamper the return to a physically active lifestyle. One promising interventions strategy is so-called 'brief interventions' (BI) to increase PA in health care settings used to initiate change for an unhealthy behavior in individuals and consisting in "verbal advice, discussion, negotiation or encouragement, with or without written or other support or follow-up". An 'extended brief intervention' (EBI) is similar but usually lasts more than 30 minutes and is delivered on a one-to-one or group basis and can be composed of multiple brief sessions. However, in CAD patients, the effect of such interventions on PA level and behavior remains unclear, as well as predictor patterns associated with better outcomes. The investigators aimed to assess the effect of a 4-day PA education program with multiple EBI and exercise on the level and barriers to PA in CAD patients and characterize the profile of participants (barriers to PA) with better outcomes.

Aim of this study is to investigate the relationship between heme oxygenase-1 enzyme level and angiographically determined SYNTAX score in patients with suspected stable coronary artery disease. Consecutive patients who are deemed to undergo coronary angiography due to high pre test probability or evidence of cardiac ischemia in imaging studies will be included in the study. Patients with coronary artery bypass surgery history and severe comorbid illnesses such as active malignancy, chronic obstructive lung disease, stage 3-5 chronic renal failure will be excluded. Serum heme oxygenase levels will be measured by ELISA method and SYNTAX score will be calculated from coronary angiography.

The FLOW-PROMOTE Study is an investigator-initiated, Danish multicenter study of patients with stable chest pain investigating whether lipid lowering is associated with recovery of impaired coronary flow as assessed by CT derived fractional flow reserve (FFRCT).

Registry to describe the impact in terms of effectiveness and safety of the combination treatment of rivaroxaban 2.5 mg twice daily with aspirin on clinical outcomes and practices in a real-life Dutch patient population that are at high risk of ischemic events.

This is a prospective, multicenter, self-control clinical trial designed to assess the efficacy of AccuFFRangio, a novel method for evaluating the functional significance of coronary stenosis from coronary angiography, with FFR as the reference standard.

The objective of this project is to assess the effectiveness of a new modality of prescribing the intensity of physical exercise in cardiovascular rehabilitation programs according to physiological criteria (heart rate variability measured every morning) in comparison to a standard non-individualized program.

Patients who present to the emergency department (ED) with acute chest pain (ACP) possibly due to Coronary artery disease (CAD), with a normal heart tracing (ECG), need to have further troponin blood tests to confirm or exclude a heart attack. After initial troponin testing, a significant 50-85% of patients are said to be in an "observational zone" as one cannot confirm or exclude a diagnosis of a heart attack. Even after repeat blood testing, 22-33% remain in this "observational zone". These patients can be challenging to manage as they are not safe to be discharged home, but they also cannot be treated as a heart attack. This contributes to ED overcrowding and uncertainty in treatment plans.

This study builds, in part, upon preliminary results generated as part of the Pharmacogenomics Anti-Platelet Intervention (PAPI) Study (NCT00799396). The purpose of this investigation is to assess the impact of genetic variation in the carboxylesterase 1 (CES1) on response to clopidogrel as well as dual antiplatelet therapy (i.e. clopidogrel and aspirin), as assessed by ex vivo platelet aggregometry, in healthy Amish individuals. The investigators hypothesize that participants who carry alleles that modify the activity or expression of CES1 will have altered response to clopidogrel as well as dual antiplatelet therapy.