View clinical trials related to Heart Valve Diseases.
Filter by:Patient with coronary artery disease (CAD), heart failure and abnormal heart function undergoing major vascular surgery have a high associated high morbidity and mortality with myocardial infarction accounting for 33-50% of perioperative deaths. The prevalence of CAD in vascular surgery patients approaches 50%. Proper pre-procedure protocols to accurately assess patients and determine who may require further medical optimization prior to undergoing surgery help mitigate risk and improve outcomes. The investigators designed this study as a single center, retrospective cohort analysis to explore the association between ventricular (LV and RV function) and valvular (Aortic / Mitral / Tricuspid) function and expanded major adverse cardiac events (X-MACE).
The aim of the study is to evaluate the effects of intermittent hypoxic-hyperoxic training (IHHT) to protect myocardium against perioperative myocardial injury during cardiac surgery using cardiopulmonary bypass.
Heart failure is characterized by cardiac fibrosis linked to extracellular collagen deposits. Collagens are synthesized as soluble precursors, procollagens, which must undergo proteolytic maturation to assemble into fibres. This step is under the control of two extracellular proteins, procollagen C-proteinase enhancer 1 and 2 (PCPE-1 and -2). The mechanism of action of these highly effective and specific activators was recently elucidated by one of our partners. Preliminary results, as well as data from the literature, indicate a strong correlation between the expression rates of PCPEs and cardiac fibrosis. The aim of this study is to validate in humans, by analysis of endomyocardial tissue biopsies, the hypothesis that PCPEs contribute to the anarchic accumulation of collagen during cardiac fibrosis and to evaluate the interest of developing new diagnostic and therapeutic strategies for cardiac fibrosis using PCPE agonists.
Transcatheter aortic valve implantation (TAVI) in high-risk patients with severe aortic valve stenosis has developed itself until today as an established minimally invasive alternative procedure worldwide, with a focus on the transfemoral access (TF-TAVI). Meanwhile a number of studies have shown that analgosedation for patients undergoing TF-TAVI is a safe and feasible alternative to general anaesthesia (1). The median length of stay in hospital in Europe is currently 8 days independent to the anesthesia management (2). In the University Hospital Schleswig-Holstein, Campus Kiel, a new TF-TAVI fast-track-concept has been implemented in June 2018. The main intraprocedural aspects of the concept are the preprocedural fluid optimization using transthoracic echocardiography, the idea to decrease or omit the central venous line and the urinary catheter, if reasonable, and finally the individualized low-dose, bolus-based AS.
The aim of the induction is to decrease stress response of endotracheal intubation. It is also important to keep hemodynamics stable during and after the induction period. Previous studies have shown that topical anesthesia can provide excellent superior supraglottic and subglottic local anesthetic effects and can significantly reduce the dosage of intravenous anesthetics. Therefore, it is significant to explore whether the combination of topical anesthesia and intravenous anesthetics could decrease the stress response of endotracheal intubation and keep hemodynamics stable during and after the induction period.
The PROTEMBO C Trial is an international, multi-center, single arm, non-inferiority study of the safety and performance of using the ProtEmbo System for cerebral embolic protection in subjects with severe native aortic valve stenosis indicated for TAVR.
Hypotension with potentially serious consequences for organ perfusion is a common complication in extracorporeal procedures such as heart-lung-machine. The exact reasons for this are still insufficiently clarified. Probably periinterventional vasorelaxant released substances play a crucial role in these procedures. These substances could be due to contact of blood cells with the Membrane in the HLM arise. In this project the hypothesis will be checked, if EETs / DHETs are released by Erythrocytes during this extracorporeal procedure and thus act as potential candidate products for the result of hypotonic phases during usage of heart-lung-machine. We will determine differences in RBC fatty acids profiling in patients before and after heart-lung-machine intervention. RBC fatty acids profiling will be achieved by using targeted HPLC-MS mass spectrometry. It is believed that during HLM there is an increase in EETs / DHETs in the serum and in the erythrocytes. It is believed that shear forces play an important role in the release of erythrocyte EETs / DHETs.
Valvular heart diseases are significant problem in Polish population. Coexistence of coronary artery disease in patients with VHD increases the risk of death and affects further therapeutic strategy. The aim of the study is analysis the epidemiology and the long-term prognosis among patients with VHD.
The National Tunisian Registry of Valvulopathies is an observational, prospective and multicenter study aiming to assess the epidemiological, clinical and therapeutic profile of valve disease in tunisian departments of cardiology. Cardiologists from both sectors (public and private) are participating in the study, with 37 investigational centers. Data will be captured electronically by DACIMA Clinical Suite, according to FDA 21 CFR part 11 (Food and Drug Administration 21 Code of Federal Regulations part 11), HIPAA (Health Insurance Portability and Accountability Act) & ICH (International Conference on Harmonisation) requirements.
Recovery after surgery depends on psychological factors such as preoperative information, expectations and surgery-associated anxiety. Prior studies have shown that even short preoperative psychological interventions can improve postoperative outcomes in heart surgery patients. However, what content works best for which patient group and how long an intervention has to be is still largely unknown. The aims of this study are thus to examine if the developed preoperative psychological intervention (i) reduces preoperative anxiety, (ii) increases positive expectations, and (iii) improves the long-term outcome postoperative recovery. Therefore, a brief intervention has been developed. Heart valve patients who undergo a heart surgery will be randomized into two groups (Control vs. intervention group) after baseline assessment. Following this the intervention group will participate in the psychological intervention (30-40 minutes). To increase patients' positive expectations the intervention will focus on treatment outcome expectations and personal control expectations. Furthermore, patients in the intervention group will have two booster-telephone calls (four and eight weeks after the surgery) to check if their developed plans work out. The control group will receive the standard medical procedure. Both groups will fill out questionnaires again at the evening before the surgery, around one week after the surgery and three months after surgery.