Active clinical trials for "Myocardial Ischemia"

The purpose of this study is to determine whether intracoronary bone marrow transplantation can improve left ventricular ejection fraction in patients with severe ischemic heart failure and no other option for standard therapies (revascularization and drugs).

Conventional open vein harvesting from the legs during coronary artery bypass surgery result in wound complications among 30% of the patients. Endoscopic harvesting decrease the complication rate, but it remains to be shown whether this is also a fact among patient in whom only short segments of veingraft material is needed from the leg. We hypothesise that the rate of wound complications will be reduced and the patient satisfaction will be increased also among patients in whom only short vein segments are endoscopically harvested compared to conventional open vein harvesting.

Prospective, randomized, active-control, single blind, parallel two-arm multi-center clinical trial comparing XIENCE V® Everolimus Eluting Coronary Stent System to the approved commercially available active control TAXUS™ EXPRESS2™ Paclitaxel Eluting Coronary Stent System. TAXUS™ EXPRESS2™ Paclitaxel Eluting Coronary Stent System is manufactured by Boston Scientific.

To compare three accepted modes of myocardial preservation, warm, tepid, and cold blood cardioplegia, coinciding with normothermic (37 degrees centigrade), tepid (32 degrees centigrade) and hypothermic (8 to 10 degrees centigrade) cardiopulmonary bypass (CPB) to define differences in neurologic function in coronary artery bypass graft (CABG) patients.

The current ST-segment elevation (STEMI)/non-STEMI treatment paradigm misses nearly one fourth of acute coronary occlusions (ACO) that needs immediately reperfusion. Many of these cases can be recognized by subtle changes on ECG, but the current STEMI criteria do not include them. The investigators of this research believe a new occlusive/non-occlusive myocardial infarction (OMI/NOMI) approach will be superior to the established STEMI/non-STEMI paradigm in early detection of ACO, limiting infarct size, reducing re-hospitalizations and most important of all, reducing mortality.

The research project aims to perform data extraction, integration and analysis across multiple clinical, administrative, financial and pharmacy databases in the participating institutions. The key data components will include clinical cardiovascular specific data, procedural data, financial and administrative data (e.g. cost of medications and supplies, length of stay, diagnosis codes etc.), short-to-long term clinical outcomes (including hospital re-admissions, cardiovascular events, death), and quality-of-care indices (e.g. compliance to guideline-recommended therapy and medications). The research project will involve all patients proven and/or suspected with coronary artery disease (CAD), congestive heart failure (CHF) and atrial fibrillation (AF) admitted to National Heart Centre Singapore (NHCS) and NUH.

The purpose of this study is to find the ideal range of the activated clotting time (ACT) during percutaneous coronary intervention (PCI) that is associated with lowering the rate of undesirable medical outcomes

The primary objective of this study is to evaluate the in-stent late lumen loss (LLL) at 9 months, defined as the difference between the post-procedure minimal lumen diameter (MLD) and the follow-up angiography MLD, of the Resolute Zotarolimus-Eluting Coronary Stent System compared to Taxus Liberte Paclitaxel-Eluting Coronary Stent System in a real-world all-comer patient population requiring stent implantation.

Kidney transplant candidates are at very high risk for coronary artery disease (CAD). The optimal strategy to monitor and maintain the cardiac fitness of patients awaiting kidney transplantation is unknown. Currently patients undergo annual testing; however, screening for CAD may increase morbidity and mortality by: exposing patients to the risk of angiography and revascularization procedures delaying or excluding patients from life saving transplantation. Before proceeding with a definitive study to determine whether screening is necessary, feasibility will be determined in this pilot study.

Is the surgical treatment of patients with coronary heart disease using the T-graft technique an adequate solution that provides a sufficient myocardial flow reserve? A magnetic resonance examination (MRI) is required.