View clinical trials related to Mitral Valve Disease.
Filter by:The goal of this observational study is to study a new method to compute ventricular-arterial coupling (VAC) in adult intensive care patients after cardiac surgery. VAC is a metric that describes the interaction between the heart and the arterial system. The new method of measuring VAC uses carotid ultrasound measurements. The main questions this study aims to answer are: - Can VAC measured using carotid ultrasound predict the hemodynamic response to drugs? - What is the concordance of VAC measurements obtained via carotid ultrasound with VAC measurements obtained via the standard, single-beat method? Measurements will be performed in the operating room and at the ICU.
There is no information in the literature on the mechanobiological characteristics of mitral valve chords in living humans. All examinations were carried out on tissues taken from animals, either from cadavers or from frozen human tissues. The objective is to determine mechanobiological and histological characteristics of the mitral valve chords in living humans, as well as to compare differences in elasticity in different groups (Group A: patients with mitral valve prolapse versus Group B: patients with restrictive ischemic mitral valve).
The goal of this open, prospective, multicenter study is analyze long-term outcomes of aortic/mitral valve replacement using the "UniLine" bioprosthesis in patients with acquired aortic or mitral valve diseases. Main research objectives: To analyze long-term (up to 12 years) outcome of aortic or mitral valve replacement using the "UniLine" bioprosthesis. To study the hemodynamic characteristics of normally functioning "UniLine " prostheses in the mitral or aortic valve position based on the transthoracic echocardiography data. To assess the number, type, time frames of dysfunctions of UniLine bioprostheses and the results of their treatment. To analyze the frequency of major serious adverse events associated with the "UniLine" bioprosthesis or procedure.
Rationale: Patients awaiting cardiac surgery can experience pre-procedural anxiety. This anxiety is associated with increased analgesic needs, increased risk of mortality and prolonged recovery time. Adequate patient education can help diminish pre-procedural anxiety and minimize postoperative complications. Recent studies have demonstrated that Virtual Reality (VR) can function as a useful tool to diminish pre-procedural anxiety in several medical fields. Especially 360 degree VR could familiarize patients with their clinical pathway. Nevertheless, limited to no research on the application of 360 degree VR has been conducted in the context of cardiothoracic surgery yet. Objective: The aim of this study is to explore the effects and possible benefits of 360 degree VR on pre-procedural anxiety in patients awaiting elective cardiac surgery involving a sternotomy, compared to standard forms of patient education. Study design: Single-center, randomized controlled trial Study population: Patients aged 18 or older awaiting elective cardiac surgery involving a sternotomy.
In addition to conventional heart valve surgery (HVS) via full-sternotomy, which is still the most prevalent therapeutic strategy to adress valvular heart disease (VHD), minimally-invasive approaches evolved as safe alternatives, resulting in lower postoperative ventilation times, transfusion rates and shorter in-hospital stay. Femoral artery cannulation is traditionally performed via surgical cutdown to establish cardiopulmonary bypass during minimally-invasive HVS. To avoid groin incision associated infection and lymphocele formation, and further minimize surgical trauma, the use of percutaneous cannulation including novel endovascular closure devices increases as an alternative but remains to be investigated. The Percutaneous peRipheral cannulatiOn for Minimally-InvaSive heart valve surgEry (PROMISE) registry aims to elucidate the safety, feasibility, and effectiveness of newly developed vascular closure devices during minimally-invasive HVS. Acute intra- and perioperative complications will be evaluated according to modified definitions of the Valve Academic Research Consortium (VARC)-3. In addition, based on the initial results, the comparison of percutaneous cannulation with conventional surgical cut-down techniques is planned.
The objective of this study is to evaluate the medium- to long-term safety of the Carbomedics OptiForm Mitral Heart Valve after the implantation for mitral valve disease in the Chinese population. The study is designed as a post-market, retrospective, single arm and multicentric data collection
This registry is a large-scale epidemiological study (PREVASC) aimed at estimating the prevalence of symptomatic and asymptomatic valvular hear disease in men and women aged over 65 years randomly selected in Italy.
Observational study in adult humans undergoing surgical or cardiological intervention for mitral valve insufficiency. Investigators aim to evaluate hemodynamic changes on an arterial pressure waveform level in patients before and after mitral valve intervention using Nexfin (BMEYE, Amsterdam, the Netherlands) continuous non-invasive hemodynamic monitoring, using finger cuff based technology to register beat-to-beat data
Certain diseases relating to the heart can only be definitively treated with surgery. When untreated, these can lead to heart failure with a lack of supply of oxygen-rich blood to the tissues, leading to damage to other organs. Adults who undergo heart surgery vary greatly in terms of age and relative health. This has significant implications when predicting outcomes in the aftermath of surgery. For example, a 90-year-old man with a variety of comorbidities such as diabetes and high cholesterol who requires a heart valve replacement may have an unfavourable chance of surviving the postoperative period when compared to an 18-year-old woman with no significant medical history undergoing the same procedure. Almost invariably, patients are admitted to an Intensive Care Unit (ICU) following heart surgery. This is done to facilitate close monitoring of the patients' vital organ functions and to also provide organ support if needed. For the heart, this can include the administration of drugs to help a heart pump forcibly, cause blood vessels to contract and increase blood pressure. Patients who have undergone heart surgery have been placed on a mechanical ventilator, following a tube placed in their windpipe. This form of ventilation often continues in ICU for a period of time, depending on the patient's condition. One specific type of ICU level monitoring that occurs in patients who have undergone heart surgery is cardiac output monitoring. This involves a thin tube, called a pulmonary artery catheter, that extends from the skin to the heart, via large blood vessels. Cardiac output monitoring is essential in this patient group to guide organ support and to provide information of how well the heart is functioning. In this observational study, the investigators wish to study patients who have undergone cardiac surgery, are receiving mechanical ventilation and have pulmonary artery catheters inserted. The investigators will collect cardiopulmonary data in these patients and compare these data with values of exhaled and inhaled gases (oxygen and carbon dioxide) over the same time period. This will enable the investigators to investigate the link between cardiopulmonary data and respired gas values. A better understanding of this link between cardiopulmonary function and oxygen/carbon dioxide values will then inform future studies aiming to determine the effect of various interventions in similar patient groups.
Rationale: Patients with mitral valve insufficiency suffer from left atrial remodeling. Atrial fibrosis is part of this remodeling process. The presence of atrial fibrosis is associated with adverse events. Currently, mitral valve repair surgery is the ultimate treatment for severe primary mitral valve insufficiency. The main indications and timing for surgery are severe mitral valve insufficiency with symptoms or left ventricular dysfunction. However, the role of atrial fibrosis in this process remains undetermined despite its well-recognized clinical implications. Characterization of atrial fibrosis patterns in mitral valve insufficiency patients might be potentially valuable for the indication and timing of mitral valve repair surgery in order to improve clinical outcomes. To date, however, mitral valve insufficiency patients suffering from left atrial remodeling have hardly been studied using these new imaging techniques. Therefore, the investigators intend to combine advanced cardiac MRI and post-processing techniques prior to and after mitral valve repair surgery to gain more insight in the clinical implications of atrial fibrosis in this patient population. It is hypothesized that the atrial fibrosis surface area paradoxically will increase after mitral valve surgery because of global shrinkage of the left atrium caused by the reversed remodeling process. As a consequence, more frequently atrial fibrosis related events including (paroxysmal) atrial fibrillation, may be observed in these patients. Objective: To assess the effects of (reduced) volume overload on the left atrial wall texture (presence, amount and location of atrial fibrosis) and associated geometry and function in patients with mitral valve insufficiency, prior to and after mitral valve repair surgery. Study design: Single center pilot study. Study population: The research population consists of mitral valve insufficiency patients scheduled for elective surgical mitral valve repair (N=20) according to the current European guideline criteria.