View clinical trials related to Heart Valve Diseases.
Filter by:The aim of this prospective registry is to evaluate the clinical impact of the new Navitor prosthesis (Abbott, Minneapolis, MN, USA) in BAV and evaluate both the main sizing methods (the classical annular or the supra-annular with ICD measurement at 4 mm above the virtual basal ring).
The INTELICE trial is a prospective, multicenter, 1:1 randomized controlled non-inferiority study. It aims to compare a novel intracardiac echography (ICE) catheter and combined ultrasound system with existing commercial ones. The evaluation will be conducted on patients undergoing planned intracardiac interventional process.
This prospective, randomized controlled study is aimed to figure out suitable transfusion threshold in patients undergoing cardiac valve surgery under cardiopulmonary bypass(CPB). Patients are randomly assigned to restrictive and liberal transfusion group and receive blood transfusion during and after surgery. Compare primary and secondary outcomes of two groups.
Bioprosthetic valves are usually made of biological tissue that are mounted to a frame and are designed to function similarly to a healthy natural valve. Edwards Magna Ease and Intuity Elite bioprosthetic valves have similar leaflets and mounting designs. However, the valves are implanted in the patient in different ways (one is stitched to the wall of the left ventricular outflow tract, and the other is held in place by the radial force of the valve skirt). The study aims to understand in more detail how the different valves interact with the left ventricular outflow tract and aortic root.
This study aims to investigate the prevalence and characteristics of multiple and mixed valvular heart disease (MMVD), which includes combinations of stenotic or regurgitant lesions on cardiac valves. The research will be conducted as a multicenter observational study, involving several centers worldwide, and will have a one-year follow-up period (with a possible extension to 5 years). The primary aim is to determine the proportion of MMVD among patients evaluated for valvular heart disease. Secondary aims include the evaluation of the epidemiologic distribution of clinical, biological, and cardiovascular imaging characteristics at baseline, management strategies, and their impact on prognosis. The study will also evaluate clinical outcomes such as mortality, hospitalization for heart failure, and changes in echocardiographic parameters. This research aims to provide valuable insights into the diagnosis, management, and prognosis of MMVD, addressing an important knowledge gap in this area.
Transcatheter aortic valve replacement (TAVR) is now the first therapeutic option offered to high and intermediate risk patients with symptomatic aortic stenosis but even to low-risk, when the aortic valve is tricuspid and the transfemoral approach is suitable. Vascular and bleeding complications are the most frequent procedure-related unwanted events associated with increased short-term morbidity and mortality. Selection of the appropriate vascular access site and pre-closing devices as well as stent implantation mitigate these complications. ACT-guided heparin reaching a target of 300 seconds or more is recommended prior to the placement of the guiding sheath in the common femoral artery. Protamine sulfate is the heparin antidote, which antagonizes 100% of its anti-IIa activity and 60% of its anti-Xa activity. Reversal of heparin using protamine sulfate is recommended for transapical and complicated transfemoral aortic valve placement.However, there is a great heterogeneity of protamine use in daily practice and supportive evidence for the prevention of bleeding complications as well as its safety is lacking. In addition, the radial approach for the second vascular access is more commonly used as well as the use of echo-guided femoral puncture further questioning reversal of heparin when the procedure has been successfully completed without overt bleeding complications. Our study aims to demonstrate the superiority of a strategy of systematic ACT-guided heparin administration followed by systematic antagonization with protamine sulfate over usual of care to reduce in-hospital mortality, vascular/bleeding complications, stroke and transcient ischemic attack, myocardial infarction or red blood cell transfusion, from randomization to hospital discharge
The primary endpoint of this study is the completion time of hemostasis treatment when administered Fresh frozen plasma (FFP) and frozen powder coagulation factor concentrate (PCC) in goal-directed bleeding management for cardiac surgery.
Comparison between the effects of intrathecal morphine versus intrathecal dexmedetomidine on analgesia and respiratory function, in open heart surgery.
The etiology and specific pathogenesis of many cardiovascular diseases such as coronary atherosclerosis, cardiomyopathy, atrial fibrillation, and stroke are still unclear. Improving diagnosis and treatment, clarifying the pathogenesis, and providing scientific basis for the prevention and treatment are hot research topics in the study of cardiovascular and cerebrovascular diseases. This study intends to collect clinical data and biological specimen data of patients with cardiovascular and cerebrovascular diseases who meet the inclusion and exclusion criteria, and use multi-omics technology to deeply understand the pathogenic mechanisms of cardiovascular and cerebrovascular diseases and provide new ideas for specific and individualized treatment of patients with cardiovascular and cerebrovascular diseases, to construct early predictive prognostic models and provide a basis for effective treatment of clinical practice in patients with cardiovascular and cerebrovascular diseases.
Heart failure (HF) is a condition in which the heart cannot pump blood adequately. It is increasingly common, consumes 4% of the UK National Health Service (NHS) budget and is deadlier than most cancers. Early diagnosis and treatment of HF improves quality of life and survival. Unacceptably, 80% of patients have their HF diagnosed only when very unwell, requiring an emergency hospital admission, with worse survival and higher treatment costs to the NHS. This is largely because General Practitioners (GPs) have no easy-to-use tools to check for suspected HF, with patients having to rely on a long and rarely completed diagnostic pathway involving blood tests and hospital assessment. The investigators have previously demonstrated that an artificial intelligence-enabled stethoscope (AI-stethoscope) can detect HF in 15 seconds with 92% accuracy (regardless of age, gender or ethnicity) - even before patients develop symptoms. While the GP uses the stethoscope, it records the heart sounds and electrical activity, and uses inbuilt artificial intelligence to detect HF. The goal of this clinical trial is to determine the clinical and cost-effectiveness of providing primary care teams with the AI-stethoscope for the detection of heart failure. The main questions it aims to answer are if provision of the AI-stethoscope: 1. Increases overall detection of heart failure 2. Reduces the proportion of patients being diagnosed with heart failure following an emergency hospital admission 3. Reduces healthcare system costs 200 primary care practices across North West London and North Wales, UK, will be recruited to a cluster randomised controlled trial, meaning half of the primary care practices will be randomly assigned to have AI-stethoscopes for use in direct clinical care, and half will not. Researchers will compare clinical and cost outcomes between the groups.