View clinical trials related to Heart Valve Diseases.
Filter by:This study is a multi-center, prospective, non-randomized, observational study. The objectives of this study are to confirm the clinical safety and efficacy of the SJM Epic valve.
Various patient groups with the On-X Valve can be maintained safely on lower doses of blood thinner(Coumadin®) or on antiplatelet drugs (aspirin/Plavix®) only rather than the standard dose of Coumadin and aspirin presently recommended by ACC/AHA or ACCP professional societies.
Controversies still exists concerning the overall clinical effects of blood-based vs. crystalloid- based cardioplegic solution for myocardial protection during cardiac arrest. Both techniques are used world-wide. No larger prospectively randomized studies comparing the two methods have been reported. The aim of this study is to collect a large number of clinical data to create a proper basis for evaluation of the two techniques.
The objective of our research is to determine whether treatment with magnesium will reduce the incidence of atrial fibrillation in patients undergoing cardiac surgery. Several small studies of magnesium have already been conducted, but these studies were small and the results conflicting. A large, well-conducted study of magnesium treatment is required to definitively determine whether magnesium is effective in preventing this common complication after surgery. In addition, our study will include patients undergoing valvular surgery, a group previously excluded from research despite the fact that they are at increased risk of atrial fibrillation.
In a blinded echocardiographic study we investigate the frequency of valvular abnormalities in a group of Parkinson patients treated with either ergot derived dopamine agonists (pergolide and cabergoline) or non-ergot derived dopamine agonists (pramipexole and ropinirole). The ability to detect patients with valvular abnormalities by clinical approach is examined.
The purpose of this study is to determine whether the SF-36 can be administered reliably to cardiac surgery patients (two to three days) post-surgery, with the patient answering the questions of this survey from a pre-surgical perspective.
Minimally-invasive operative techniques have been introduced in cardiac surgery. These techniques may have several advantages such as a decrease in post operative pain, lower morbidity and mortality, faster recovery, and a shorter hospital stay. However, these advantages have rarely been documented in the setting of a formal randomized controlled trial.
Aims and Hypotheses: This randomised placebo controlled study will test the hypothesis that Recombinant Activated Factor VII (rVIIa) will improve haemostasis after an inadequate response to conventional therapy in complex cardiac surgery. Major bleeding is still of concern in complex cardiac surgery. It has been shown to be associated with poorer patient outcome and results in the consumption of resources (hospital costs, manpower and blood bank reserves). This study has the potential to provide evidence that rVIIa can reduce transfusion requirements and improve patient outcome in a problematic aspect of complicated cardiac surgery. The objective is to conduct a multi-centre randomised placebo controlled study that has been designed to scientifically evaluate the treatment of post bypass coagulopathy in the association with complex cardiac surgery. The trial design is based on clinical practice that has evolved over 2 years at the Austin Hospital during which 38 patients have received open label administration of rVIIa. There is currently no published RCT in this area and there is no TGA approval for the use of rVIIa for this indication.
The purpose of this study is to determine whether patients with Parkinson's disease and treated with pergolide have a higher risk of heart valve disease compared to patients with Parkinson's disease not treated with pergolide.
Fibrotic valvular heart diseases are known as rare complications of long-time therapy of Parkinson's disease with ergot-derivatives including some ergot-dopamine agonists. The aim of this study is to assess the incidence of valvular heart disease, which may be an ergot-drug agonists side-effect or an overall complication of all dopamine agonists. Incidence, prevalence and addiction of dose or intake duration are not known so far. The reversibility of the changes is unknown too. To answer these questions the present study is designed as a cross sectional study followed by a 2 year follow-up prospective cohort study.