Active clinical trials for "Myocardial Ischemia"

The purpose of this study is to validate the usefulness of 64-slice multi-detecter computeted tomography as a screening tool in asymptomatic population.

The purpose of this trial is to compare the clinical significance of the main vessel and the side branch vessel using EKG, pain score and coronary wedge pressure to develop a new scoring system to predict the clinical significance of a side branch

1) Establish normal value for coronary calcium scoring in Taiwan. 2) Find out the relationship of coronary calcium deposition and coronary artery stenosis. Propose a clinical management guideline based on coronary calcium score. 3) Evaluate sensitivity/specificity of coronary CT angiography and the influence of coronary calcium score on coronary CT angiography. 4) Evaluate the clinical application of myocardial enhancement measurement.

The purpose of this study is to investigate the prevalence and degree of coronary arterial microcirculaiton dysfunction of non- obstructive coronary artery disease in patients with type 2 diabetes. Furthermore, the risk factors of coronary arterial microcirulation would be screened and identified.

The NIA algorithm is similar to the traditional 12-lead ECG equipment. By analyzing patient data, NIA algorithm provides more detailed results compared to traditional 12-lead ECG. Patients with suspected coronary artery disease are conventionally diagnosed and treated by cardiac catheterization. However, cardiac catheterization is invasive procedure. Unless clinical diagnosis is evident before cardiac catheterization, a treadmill exercise test, a nuclear medicine myocardial perfusion test, or a multi-direction coronary CT angiogram is usually performed to increase the accuracy of diagnosis. But these examinations are not accessible to all patients, and are time-consuming and costly.

This is a prospective, multi-center, hospital-based observational study. The aim of the study is to evaluate the prevalence of chronic kidney disease in patients with stable coronar heart disease.

There are several physiologic parameters in evaluating cardiovascular disease. This study will reveal which parameter is the most proper value in predicting disease severity and risk factors of patients.

The study addresses epidemiology of cardiovascular risk factors and major cardiovascular diseases in Russian Federation (urban and rural population). 12 regions of 1600 participants in each will be included.

The main aim of this study is to compare markers of cardiac injury (Troponin I), inflammatory response and platelets function during minimally invasive mitral valve repair or replacement (MIMV) via right mini-thoracotomy in two standard anaesthetic regimes (sevo \propofol)

to evaluate diagnostic accuracy and performance of IVUS and OCT-derived quantitative parameters to predict functional significance of stenosis defined using all the available physiologic indices. to explores the association between intravascular imaging-derived plaque characteristics and invasive physiologic indices.