Active clinical trials for "Heart Diseases"

The primary objective of this study is to determine if quantitative Dynamic contrast-enhanced magnetic resonance (DCE MR) perfusion imaging accurately quantifies right and left pulmonary artery blood flow as compared with phase contrast flow velocity mapping (PC), the current gold standard of flow volume measurements.

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.

The Study plan is a post-market prospective, multi-center, open-label registry. The vein graft failure rates for the currently commercialized C-Port devices will be compared to an a priori rate taken from the peer-reviewed literature.

Postnatal intestinal function in cardiac infants. The overall goal of this proposal is to address a widespread health problem in the pediatric cardiac infant population - poor postnatal growth - through a collaborative effort between pediatric cardiology, cardiothoracic surgery, neonatology, microbiology, and immunology. The hypothesis is that term neonates with complex congenital heart disease (CHD) who receive trophic breastmilk feeds in the pre-operative period will show improved gut function than neonates who were strictly NPO (nothing by mouth) in the pre-operative period.

The purpose of the study is 1> to compare neointimal stent coverage after OCT-guided vs. Angio-guided PCI, 2> to compare neointimal stent coverage at 3 months after EES vs BES implantation, 3> to determine the duration of dual antiplatelet therapy by OCT measurement at 3 months

The Renin-Angiotensin-Aldosterone-system is important in the development of cardiovascular organ damage caused by arterial hypertension. This study aims at evaluating the importance of aldosterone with regard to hypertension induced damage to the heart. In order to do this the investigators will perform a comparative cross-sectional study in hypertensives and normotensives. In addition as interventional part the hypertensives will be treated with a mineralocorticoid-receptor blocker (spironolactone).

The purpose of this study is to assess the efficiency of permanent biventricular pacing using three ventricular leads in terms of reduction in adverse cardiac events rates, improvement in cardiac capacity and patients' functional status in subjects with congestive heart failure and a physiologic (sinus) rhythm.

Comparison of two operative techniques (on-pump vs off-pump)of coronary revascularisation of the best treatment concept for patients older or 75 years old. Hypothesis: The coronary bypass operation without use of the heart-lung machine (off-pump=OPCAB) reduces the combined endpoint in comparison with the conventional coronary bypass operation (on-pump).

The PATCAR study has been designed to test the hypothesis that the strategy of pre-hospital use of a "clot busting" (thrombolytic) drug followed with emergent heart catheterization including stenting of the problematic coronary artery, will result in a lower mortality and reduced repeat heart attack rates. Early identifying and treating heart attacks patients prior to the arriving at the hospital, in those patients who qualify for the "clot busting" drugs will lower the size of the heart attack damage. This smaller heart attack will lead to fewer problems with less repeat heart attacks and death in the future.

This is a multicenter, randomized, double-blind trial, comparing clinical outcomes after the administration of high-dose dexamethasone versus placebo in patients undergoing heart surgery with the use of cardiopulmonary bypass. The primary endpoint is the occurrence of major complications (including all-cause mortality, myocardial infarction, stroke, renal failure, and prolonged mechanical ventilation) in the first 30 days after surgery.