Active clinical trials for "Coronary Artery Disease"

This study, designed as a retrospective registry, aims to investigate the relationship and potential interplay between fractional flow reserve (FFR) or instantaneous waves free ratio (iFR) with wall shear stress (WSS) in the context of intermediate coronary stenosis.

The goal of this study is to assess the long-term efficacy and safety of Firebird2 Cobalt-Chromium（CoCr）-alloyed sirolimus-eluting stent in treatment of complex lesions in diabetes.

The purpose of this study is to test whether cardiac autonomic dysfunction predicts is a prognostic marker in type-2 diabetics with ischemic heart disease

The negative effect of internal mammary harvesting on sternal perfusion is well known, especially in diabetic subjects. Microdialysis previously showed increased lactate tissue concentration after mammary artery preparation. Although high antibiotic concentration is of utmost importance in this region, no study previously measured the effect of internal mammary artery harvesting on target tissue antibiotic concentration. Study hypothesis: Internal mammary artery harvesting imposes an additional risk for deep sternal wound infection by impairing antibiotic tissue penetration. This effect is mediated by altered perfusion patterns and may be seen in cephalosporin and/or Teicoplanin treatment. Study objective: To evaluate the impact of left internal mammary artery preparation on target tissue antibiotic concentration of Cefazolin and Teicoplanin during cardiac surgery Design: This study is designed as an observational pharmacokinetic trial. Patients are their own controls by measuring antibiotic concentration in different subcutaneous tissues. Study population: Patients referred for coronary artery bypass grafting to the Department of Cardiothoracic Surgery with planned unilateral left internal mammary artery preparation and a high risk profile for deep sternal wound infections will be asked to participate in this trial.

Basic studies has showed that sustained use of nitrates might associated with adverse effects on vascular function mediated by an increase in nitrate-induced oxidative stress. But it remains unclear whether oxidative stress increases with endothelial function impairment in patients with coronary artery disease (CAD) during administration of long-term oral nitrates. The investigators evaluated whether administration of long-term isosorbide mononitrate (ISMN) treatment was associated with oxidative stress increase and endothelial function impairment in patients with CAD.

Atherosclerotic coronary heart disease is a condition thought to involve low-grade inflammation. Several reports, clinical and epidemiological, have demonstrated that intake of fish oil may be beneficial in attenuating the inflammatory process. Still, however, there are lacking data in respect to whether differences in composition of various marine oils may influence the inflammatory status differently. The hypothesis of the current study is that extract from the antarctic krill (Euphausia superba) is better than traditional fish oils when compared head-to-head with balanced composition of omega 3 content on inflammatory status.

Blood samples and health information (e.g., age at diagnosis, test results) are collected for the purposes of genetic research. The blood samples are assigned a number and stored in a repository for safe keeping until they are needed for a research project. Participants are persons who are healthy (not having high blood pressure, diabetes, or high cholesterol levels) or persons who have Coronary Artery Disease (CAD) and live in Indiana. Participants complete a questionnaire at the time the blood sample is drawn and are contacted once a year to update their health history. Researchers apply to the Fairbanks Institute for use of the blood samples and health information minus participant names and contact information. Their research is required to be related to find genes or substances made by genes that may be involved in Coronary Artery Disease with the purpose of improving the investigators understanding of the illness potentially leading to the development of new diagnostic tools for identifying the illness, new treatments,or preventative measures. This study will be repeated for other disorders like Diabetes and Cancer.

We sight to evaluate whether patients with coronary artery disease (CAD) have more epicardial fat than patients without CAD, which would suggest that epicardial fat may be more than an "innocent bystander" and be actively involved in the disease process. Its role as a modulator of vascular response and myocardial function could potentially lead to new areas of cardiac research. We also sight to evaluate whether epicardial fat from patients with CAD releases more adipokines than subcutaneous fat from these patients which could prompt studies into the differential regulation of adipokine secretion in this tissue. Thus for e.g., the use of thiazolidinediones (glitazones), statins, ARBs or other compounds that can specifically modulate adipokine secretion could be explored to determine their benefit in ameliorating the effects attributable to increased epicardial fat.

The progressive aging of the general population cause increase in number of extensive and long surgeries in older patients. Age is a risk factor for perioperative myocardial ischemia and Postoperative Cognitive Dysfunction (POCD) The suggested study will deal with the above-mentioned complication in patients older then 65 years undergoing major non-cardiac surgeries. It has been shown that Isoflurane and sevoflurane may have a cardio-protective effect after cardiac surgery involving cardio-pulmonary bypass, and it was recommended that isoflurane should be used in these cases. A question was raised but haven't been answered yet, whether this cardio-protective effect exists also in non-cardiac major surgery. The aim of this study is to evaluate whether there is a difference in the occurrence of postoperative cognitive dysfunction and perioperative myocardial ischemia between total intravenous anesthesia using propofol and isoflurane based anesthesia.

Construction of coronary heart disease cohort of more than 10000 patients in China. Investigation on current situation of secondary prevention of CHD will be carried out and the effect of physician training and patient education will be evaluated.