Active clinical trials for "Coronary Disease"

64 channel multidetector-row Computed Tomography (CT) has been introduced for use in the diagnosis of coronary heart disease. The investigators aimed to characterize coronary artery disease in type 2 diabetes mellitus and metabolic syndrome, and in particular plaque natures depending on different status of metabolic diseases. The investigators also aimed to analyze the risk factors associated with number and severity of stenosis as well as plaque characteristics using logistic regression models.

The aim of this study is to prospectively investigate if intermittent Phosphodiesterase 5 inhibition for 15 weeks improves myocardial perfusion by angiogenesis in patients with therapy refractory myocardial ischemia due to coronary artery disease judged to be unsuitable for surgical or percutaneous revascularisation. For proof of efficacy the following tests will be performed at baseline and one day and 4 weeks after discontinuation of therapy: Exercise tolerance will be evaluated by bicycle exercise testing. Blood tests will be performed to evaluate markers of angiogenesis (endothelial progenitor cells, vascular endothelial growth factor, basic fibroblast growth factor). The improvement of myocardial perfusion will be tested functionally as increase of coronary flow reserve by positron emission tomography. Moreover, changes in ventricular function, symptoms and quality of life will be assessed.

Investigators aimed to investigate the association between over active bladder and coronary artery disease as demonstrated on coronary angiography.

The purpose of this study is to evaluate long-term outcome of treatment(percutaneous coronary intervention or coronary-artery bypass graft) in unprotected left main coronary artery stenosis in Korea.

Quantitative Flow Ratio (QFR) is a novel method for evaluating the functional significance of coronary stenosis. The purpose of the FAVOR II China study is to evaluate the diagnostic accuracy of on-line QFR with FFR as the reference standard. The secondary purpose is to compare the diagnostic accuracies between online QFR and online QCA, with FFR as the reference standard.

Evaluation of coronary artery vessel wall healing at different time points in patients undergoing implantion of bioresorbable vascular scaffold by using intravascular imaging. In addition long-term clinical follow-ups are planned for all patients treated with Absorb in the institution

Human epicardial fat is the true visceral fat depot of the heart, and its regional distribution and physiology is of growing scientific and clinical interest. This study aims to characterize the expression profile and function of the epicardial and pericardial adipose tissue compartments of the heart (EAT and PAT). EAT and PAT adipose biopsies will be obtained from patients undergoing coronary artery bypass graft surgery (CABG) or valve replacement surgery.

In which CHD patients with high risk of CV complications are different doses of LIPRIMAR used? For this purpose, data on hyperlipidemia will be elicited over and above the basic nosographic and demographic data, concomitant diseases and cardiovascular risk factor.

The overall goal of this study is to determine if non-invasive imaging with state of the art CT coronary angiography can be used to screen for transplant coronary artery disease in the setting of heart transplant. Our current protocol at UCSF for heart transplant patients involves screening with stress tests as well as coronary angiograms with intravascular ultrasound to assess the diameter of the lumen of the coronary arteries and to assess wall thickness.

Patients undergoing elective coronary artery bypass graft surgery (CABG) are treated with platelet inhibitors to reduce myocardial infarction and mortality.However, this can increase perioperative bleeding. A retrospective analysis of the data in our institution has revealed a significant increase in transfusion requirements after elective CABG since 5 years. The aim of our study is to observe if this increase in transfusion requirements is due to platelet inhibitors or due to other coagulation abnormalities resulting from other anticoagulants.