Clinical Trials Logo

Myocardial Ischemia clinical trials

View clinical trials related to Myocardial Ischemia.

Filter by:

NCT ID: NCT03366753 Completed - Clinical trials for Coronary Artery Disease

Impact of Acute Normovolemic Hemodilution on Blood Viscosity

Start date: May 2016
Phase: N/A
Study type: Interventional

Acute normovolemic hemodilution (ANH) has long been employed for reducing allogenic blood transfusion for cardiac surgery, and hydroxyethyl starch has been used as an intravenous replacement fluid during ANH procedure. However, possible impact of ANH employing HES on blood viscosity and oxygen delivery have not been well investigated in patients undergoing off-pump coronary artery bypass (OPCAB) surgery . Anesthesia is induced and maintained by using propofol-remifentanil-rocuronium in OPCAB surgery (n=21). ANH is performed by using 5 ml/kg of blood salvage and administering 5 ml/kg of balanced HES 130/0.42 (Tetraspan™) for 15 min during vascular graft harvesting. For the present study, three arterial blood samples (3 ml each) are taken before (Sample 1) and after ANH (sample 2 and 3) and they are stored in 3 tubes. Sample 3 (in tube) undergoes further 30% in-vitro dilution by adding 1-1.5 ml HES. By using a scanning capillary tube viscometer (Hemovister™), Blood viscosity at low shear rate (5/sec) of the three samples are determined. By using a formula with blood viscosity and hematocrit, tissue O2 delivery index (TODI, = hematocrit/viscosity at 5/sec) is calculated.

NCT ID: NCT03366649 Recruiting - Clinical trials for Coronary Artery Disease

Improving Mitral Repair for Functional Mitral Regurgitation

IMPROVE-FMR
Start date: December 31, 2017
Phase: N/A
Study type: Interventional

The investigators are interested in determining the best surgical technique to correct functional mitral regurgitation, as there is currently not one technique that is established to work better than the other. The technique used in current clinical practice is undersizing mitral annuloplasty (UMA), in which a prosthetic ring is implanted onto the mitral valve to correct the leakage. Though widely adopted, durability of the repair is less, as 58% of the patients present with recurrent FMR within 2 years. There are no specific algorithms to predict who might have UMA failure, but research indicates that some geometric indices might be strong predictors. The investigators are interested in testing the hypothesis that, elevated lateral inter-papillary muscle separation (IPMS) is a predictor of post-UMA recurrence of FMR at 12 months. In the first part of this study, the study team will measure lateral IPMS before surgery, and relate to post-surgery FMR severity at discharge/30 days, 6 months and 12 months. A relatively newer technique is papillary muscle approximation (PMA), in which a suture draws together the two muscles that connect the mitral valve to the heart muscle prior to performing UMA. This reduces the lateral inter-papillary muscle separation (IPMS) and is expected to improve the durability of UMA. In the second part of this study, the investigators will perform PMA and UMA together and determine if FMR severity is reduced at discharge/30 days, 6 months and 12 months.

NCT ID: NCT03366532 Completed - Clinical trials for Coronary Artery Disease

Dietary Analyses in the Nurses' Health Study, Nurses' Health Study II, and Health Professionals Follow-Up Study

Diet
Start date: August 1980
Phase: N/A
Study type: Observational

To determine the relationships of a variety of nutrients, foods, and dietary patterns with the subsequent risk of developing type 2 diabetes, cardiovascular disease, and mortality in US men and women.

NCT ID: NCT03365492 Not yet recruiting - Clinical trials for Coronary Artery Disease

BioFreedom Pharmacokinetic Study

Start date: January 1, 2018
Phase: N/A
Study type: Interventional

The purpose of this pharmacokinetic (PK) study is to characterize the maximum concentration (Cmax) and time-to-maximum concentration (Tmax) of Biolimus A9TM and its active metabolites sirolimus and everolimus in a cohort of coronary artery disease (CAD) patients following implantation of BioFreedomTM SS stent.

NCT ID: NCT03363035 Not yet recruiting - Clinical trials for Myocardial Infarction

Safety and Efficacy of LMWH Versus Rivaroxaban in Chinese Patients Hospitalized With Acute Coronary Syndrome

H-REPLACE
Start date: January 1, 2018
Phase: Phase 4
Study type: Interventional

H-REPLACE trial is a prospective, randomized, open-label, active-controlled, multicenter study in participants with ACS (STEMI or NSTEMI, unstable angina). All eligible participants receiving background treatment of aspirin plus clopidogrel or ticagrelor will be randomly assigned to either oral rivaroxaban 2.5 mg twice daily or rivaroxaban 5 mg twice daily or subcutaneous (SC) enoxaparin 1mg/kg twice daily until hospital discharge or 12 hours before revascularization therapy for a maximum of 8 days.

NCT ID: NCT03362788 Not yet recruiting - Clinical trials for Coronary Artery Disease

The Greek AntiPlatElet Atrial Fibrillation Registry.

GRAPE-AF
Start date: December 2017
Phase: N/A
Study type: Observational [Patient Registry]

Approximately 5% to 7% of patients undergoing percutaneous coronary intervention for the treatment of coronary artery disease, require chronic oral anticoagulation on top of aspirin and a P2Y12 receptor antagonist, mainly due to non-valvular atrial fibrillation. Advent of non-vitamin K antagonist oral anticoagulants (NOAC) increased treatment options, while there is cumulative evidence that dual combination of NOAC and P2Y12 receptor antagonist attenuates bleeding without compromising efficacy. Greek AntiPlatElet Atrial Fibrillation (GRAPE-AF) is an observational study of non-valvular atrial fibrillation patients undergoing percutaneous coronary intervention, planning to enroll >500 participants during 1 year period in Greece. Patients will be followed-up at 1, 6 and 12 months post hospital discharge. Key data to be collected pre-discharge include demographics, detailed past medical history, antithrombotic and concomitant treatment. Study's primary endpoint is clinically significant bleeding defined as Bleeding Academic Research Consortium (BARC) ≥2) at 12 months, between vitamin K antagonists (VKAs) and NOACs-treated patients. All clinical events will be adjudicated by an independent endpoint committee.This study would provide "real world" information on current antithrombotic treatment patterns and clinical outcome of patients with non-valvular atrial fibrillation undergoing percutaneous coronary intervention.

NCT ID: NCT03360981 Recruiting - Clinical trials for Coronary Artery Disease

Epicardial Fat and Clinical Outcomes After Coronary Artery Bypass Grafting in Diabetics vs. Non Diabetics

Start date: September 20, 2017
Phase: Phase 4
Study type: Interventional

Cardiovascular disease (CVD) is a group of diseases including both the heart and blood vessels, thereby including coronary heart disease (CHD). To date, diabetics have a higher incidence and prevalence of multivessels CHD. Treatments in multivessels CHD in diabetics include full medical anti ischemic therapy, and revascularization therapy (Percutaneous coronary intervention (PCI) and/or Coronary artery bypass grafting (CABG)). Randomized trials comparing multivessel PCI to CABG have consistently demonstrated the superiority of CABG in reducing mortality, myocardial infarctions and need for repeat revascularizations. After the CABG treatment, diabetics vs. non-diabetics evidenced a worse prognosis, and an increased mortality. Numerous molecular, epigenetics (as microRNAs), and other metabolic risk factors may condition the worse prognosis in diabetics vs. non diabetics after CABG. In this context, an increased epicardial fat tissue thickness may be independently associated with the prevalence of diabetes, and diabetics have an higher epicardial fat tissue thickness, volumetry, and enhanced metabolism. Therefore, after CABG, lifestyle and medical improvements may lead to the reduction of epicardial fat thickness, extension, and metabolism in both non-diabetics, and diabetics, ameliorating the prognosis. At moment, epicardial tissue function in diabetics is not well investigated in literature, and no data has been reported about new hypoglycemic drugs, and its pleiotropic effects on diabetics after CABG. Indeed, our study hypothesis was that, epicardial fat tissue dimension, and metabolic activity may be related to a different expression of inflammatory, oxidative, and apoptotics molecules, and epigenetic effectors in diabetics vs. non-diabetics. Secondary, these effectors, and epicardial tissue dimension and activity, may be controlled, after CABG, by incretin treatment in diabetics. Therefore, incretin therapy may be associated to the reduction in epicardial fat tissue thickness, and extension, with down regulation of different inflammatory, oxidative and apoptotics molecules, and epigenetic effectors involved in epicardial fat metabolism. Moreover, in this study authors will evaluate in diabetics vs. non diabetics, and in diabetic incretin-users vs. never.-incretin-users, all cause mortality, cardiac mortality, and Major adverse cardiac events (MACE) after CABG in diabetics vs. non diabetics, and diabetic incretin-users (6 months of incretin therapy) vs. diabetic never-incretin-users. Authors will correlate these clinical endpoints to the study of the epicardial fat anatomy and metabolism before and after CABG, and to circulating inflammatory and pro-apoptotic markers, epigenetic effectors, and stem cells in diabetics vs. non diabetics, and diabetic incretin-users (6 months of incretin therapy) vs. diabetic never-incretin-users.

NCT ID: NCT03360591 Recruiting - Clinical trials for Coronary Artery Disease

Functional Assessment In TAVI: FAITAVI

FAITAVI
Start date: November 24, 2017
Phase: N/A
Study type: Interventional

The aim of this study is to compare the clinical outcome of patients with severe aortic valve stenosis and associated significant coronary artery disease treated with TAVI and a percutaneous myocardial revascularization dictated according to two different strategies: 1. the Angiographically-guided strategy; 2. the Physiologically-guided strategy.

NCT ID: NCT03358680 Recruiting - Clinical trials for Coronary Artery Disease

Temperature and Analgesia Monitoring During Cardial Parmonary Bypass

Start date: April 1, 2017
Phase: N/A
Study type: Observational

In this study, 1. Investigator will apply IOC2 to reflect the depth of analgesic during hypothermia in CPB period. 2. Furthermore, investigator evaluated the effectiveness of IOC2 monitoring for anesthetic depth versus commonly used vital sign monitoring based on factors such as blood pressure and heart rate. 3. Evaluate the other sedation co-relation measurement, include BIS , IOC2 to reflected the consciousness during the operation. 4. Evaluate the other hemodynamic index, include CO, SVV, CVP, PPV to reflect the circulation function , and the effect to the IOC2 and IOC1. 5. Describe the trend of all the measurement. detect the variation of the index during the temperature change during the CPB.

NCT ID: NCT03355742 Not yet recruiting - Clinical trials for Coronary Artery Disease

XIENCE 28 Global Study

Start date: December 27, 2017
Phase: N/A
Study type: Interventional

XIENCE 28 Global Study is a prospective, single arm, multi-center, open label, non-randomized trial to further evaluate the safety of 1-month (as short as 28 days) dual antiplatelet therapy (DAPT) in subjects at high risk of bleeding (HBR) undergoing percutaneous coronary intervention (PCI) with the approved XIENCE family (XIENCE Xpedition Everolimus Eluting Coronary Stent System [EECSS], XIENCE Alpine EECSS, XIENCE PROX EECSS, or XIENCE Sierra EECSS of coronary drug-eluting stents