Active clinical trials for "Heart and Blood Diseases"

Retinal function is highly dependent on the glucose supply. Thus, functional adaptations occur in response to both acute and long-term changes in glycaemia. The purpose of this study is to examine functional and metabolic aspects of retinal adaptation to long-lasting changes in glycaemic control in patients with diabetes. The adaptational phenomena will be characterized by electroretinography, dark adaptation, measures of retinal perfusion and oximetry as well as diabetic retinopathy grading and (OCT).

The aim of the study is to investigate whether a predictive score (combination of several validated predictors) better predicts postoperative left ventricular function than any single predictor in patients undergoing mitral valve repair for degenerative mitral regurgitation. A single center, prospective cohort study

Retrospective observational study of patients with atrial fibrillation admitted to Roskilde University Hospital in 2010.

Data reported by the international registry of acute aortic dissection (IRAD) in not sufficient to reflect clinical characteristics of acute aortic dissection in China. Moreover, clinical characteristics of Acute aortic dissection have not evaluated to data. The aim of this study is analyze changing trend of clinical characteristics of Chinese patients with acute aortic dissection.

The purpose of this study is to measure prothrombin time (PT) on an experimental device and a commercially available device on persons receiving coumadin (warfarin)treatment.

The main objective is to investigate mechanical alternans and MTWA in patients with heart failure caused by coronary artery disease to demonstrate a possible correlation between these two phenomena.

The purpose of this study is to determine the degree of endothelial dysfunction and inflammation in calcific aortic valve disease associated with coronary artery disease(CAD). to determine whether there is relationship between calcium metabolism and calcific aortic valve disease associated with CAD.

Measurement of reactive oxygen species production and antioxidant system status before and directly after reperfusion of the transplanted kidney and influence of oxidant stress on kidney function in 2 and 6 weeks.

The purpose of this study is to determine if increasing the linear rise rate of injection of x-ray contrast in the heart during left ventriculograms(part of a cardiac Catheterization procedure) will decrease the incidence of arrythmias and improve image quality?

The purpose of this study is to develop a way to predict which patients diagnosed with idiopathic blood clots can safely stop warfarin therapy after six months. We will use patient characteristics, blood test results and imaging test results to identify those patients who have the lowest risk of developing a new blood clot after warfarin is stopped.