Clinical Research Directory

AHEAD: European Feasibility Study of the Cardiovalve Transfemoral Mitral Valve System

This study will evaluate the safety of the Cardiovalve Transfemoral Mitral Valve System with its associated procedure, and observe the device performance in reducing mitral regurgitation. Data collected in this clinical study will include 30-day safety and performance, and long-term clinical outcomes over a follow-up of 2 years.

Abbott Cephea Mitral Valve Disease Registry

The objective of this registry is to gather clinical data on symptomatic patients with mitral valve disease, including patients with mitral regurgitation, mitral stenosis, and mixed mitral valve disease. Data collected from this registry are expected to improve our understanding of the impact of correcting symptomatic mitral valve disease on clinical outcomes in patients that could be candidates for Transcatheter Mitral Valve Replacement and may also inform future regulatory or reimbursement submission strategies for the Cephea Mitral Valve System.

The MITRAL II Pivotal Trial (Mitral Implantation of TRAnscatheter vaLves).

A prospective multicenter study enrolling high surgical risk patients with severe mitral annular calcification (MAC) and symptomatic mitral valve dysfunction (severe stenosis, ≥ moderate to severe regurgitation, or mixed ≥ moderate stenosis and ≥ regurgitation). There are 2 Arms in this study: 1) "Transseptal (TS) Valve-in-MAC" (ViMAC) Arm, and 2) Natural History of Disease Registry (NHDR) for patients treated with medical treatment only (which includes patients who meet inclusion criteria but can't be treated with transeptal ViMAC due to the presence of anatomical exclusion criteria or other exclusion criteria) and have not had other procedures that may impact outcomes (i.e., alcohol septal ablation or radiofrequency ablation). The study also includes a Registry of Permanently Unassigned" for subjects who undergo preemptive septal ablation procedures (alcohol or radiofrequency) in anticipation of continuing onto ViMAC arm, but are not accepted in the ViMAC Study arm or the patient chooses not to undergo ViMAC procedure.

A Feasibility Study of the Millipede Transcatheter Annuloplasty Ring System in Patients With Functional Mitral Regurgitation

To evaluate the feasibility and safety of the Millipede Transcatheter Annuloplasty Ring System in subjects with functional mitral regurgitation

ALLIANCE Mitral: Safety and Effectiveness of SAPIEN X4 Transcatheter Heart Valve - Mitral

This study will establish the safety and effectiveness of the Edwards SAPIEN X4 Transcatheter Heart Valve (THV) in subjects who are at high or greater surgical risk with a failing mitral surgical bioprosthetic valve or a failing native mitral valve with an annuloplasty ring.

Cohort Observing Mechanisms, Progression and Sequelae of Valvular Heart Disease

The objective of this study is to evaluate and predict the progression of moderate cardiac valve stenosis and regurgitation using clinical, biological, echocardiographic, computed tomography (CT), and magnetic resonance imaging (MRI) data. Additionally, the study aims to analyze the potential impact of device-based interventions, pharmacological therapy, and lifestyle modifications on disease progression.

PARTNER 3 Trial - Mitral Valve in Valve

To assess the safety and effectiveness of the SAPIEN 3 transcatheter heart valve in patients with a failing mitral bioprosthetic valve.

Safety and Efficacy of the CoolCryo System for Cardiac Cryoablation in the Treatment of Atrial Fibrillation

The study involves endocardial cryoablation of the left and/or right atrium of the heart using the CoolCryo system as an adjunct to mitral valve surgery, with the aim of eliminating atrial fibrillation (AF), which is a common sequelae of mitral valve defects and is associated with an increased risk of ischaemic stroke, heart failure and death.

Mitral Valve Screening Survey

This study aims to examine the clinical profile/anatomical characteristics and natural history of patients who subsequently fail screening for transcatheter mitral valve intervention (TMVI).

Early Feasibility Study of Surgical Implantation of a Polymer Prosthetic Mitral and Aortic Valve

The goal of this clinical trial is to explore the early feasibility, initial safety, and efficacy of surgical implantation of a polymer prosthetic heart valve in patients requiring either mitral valve replacement or aortic valve replacement. The main question it aims to answer is: \-- What is the rate of valve-related complications, including thromboembolism, valve thrombosis, severe perivalvular leak, severe bleeding, and endocarditis, at 12 months post-operation? Participants will undergo: * Surgical implantation of a polymer prosthetic valve (mitral valve replacement for mitral valve group and aortic valve replacement for aortic valve group). * Regular follow-up visits at 30 days, 3-6 months, and 12 months post-operation to evaluate clinical outcomes, including echocardiographic assessment and clinical event monitoring.

Prospective Multicenter Study on Mitral Annular Disjunction

Observational cohort prospective multicenter study on patients with mitral annular disjunction (MAD). MAD is defined as a separation (≥1 mm) between the atrial wall-mitral valvular junction and the left ventricular free wall during end-systole

Management and Clinical Outcomes of Patients With Severe Mitral Valve Disease Not Suitable for Surgery

The objective of this study is to collect in a prospective registry all cases of French patients undergoing an assessment for percutaneous treatment of mitral valve disease on a native valve or due to deterioration after surgical valve repair or replacement. In these patients, valvular surgery should be considered contra-indicated or at prohibitive risk. This registry will evaluate the morbidity and mortality up to 24 months for those patients with severe mitral valve disease who are not included in a clinical trial. The association of demographic, clinical, laboratory, echocardiographic variables and treatment options with morbidity and mortality will be evaluated by univariate and multivariate analyses.

Evaluation of the Elasticity of the Mitral Valve

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 Study on the Use of "UniLine" Bioprosthesis in the Treatment of Isolated Aortic and Mitral Valve Diseases

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.

LEFT ATRIAL MONITORING IN PATIENTS BEFORE AND AFTER MITRAL SURGERY - LAMBDA STUDY

Mitral valve leakage, or mitral regurgitation (MR), is associated with heart failure symptoms including shortness of breath, fatigue, irregular heart rate. When left untreated, it may cause death. Patients with MR can be divided in two broad groups: those with primary MR, caused by disease of the mitral valve structures, and those with secondary MR, due to dilation of the heart chambers. Our study focuses on patients with primary MR. The standard treatment for severe symptomatic primary MR is mitral valve surgery, a type of open-heart surgery. The outcomes following this procedure are excellent, however, a subset of patients continue to experience heart failure symptoms after surgery due to very high pressures in the heart, more specifically in the left atrium, which is one of the four heart chambers. This is called functional mitral stenosis (FMS). Previous studies have shown that creating a small opening between the left and right atria can help relieve the pressure inside the left atrium. We would like to determine whether creating this opening between the two atria at the time of mitral valve surgery can help prevent FMS. To answer this question, we will study two groups of patients who need mitral valve surgery for primary MR. The first group will undergo mitral valve surgery, along with the creation of the opening between the two atria. The second group will undergo mitral valve surgery alone. We will then compare the outcomes between both groups, namely with regards to their heart failure symptoms after open-heart surgery.

The Effects of 360-degree Virtual Reality on Pre-procedural Anxiety in Patients Awaiting Elective Cardiac Surgery Involving a Sternotomy

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.

European Association of Cardiovascular Imaging Multiple and Mixed Valvular Disease Study

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.

PROMISE: Percutaneous peRipheral cannulatiOn for Minimally-InvaSive Heart Valve surgEry

In addition to conventional heart valve surgery (HVS) via full-sternotomy, which is still the most prevalent therapeutic strategy to address 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.

Prospective Project to Identify Biomarkers of Morbidity and Mortality in Cardiovascular Interventional Patients

The objective of CAREBANK study is to establish definitive relationships with human cardiac samples and clinical phenotypes in patients undergoing cardiac procedures. Specifically, the investigators aim at comparing atrial phenotypes from atrial fibrillation patients and controls. The work consists of three broad categories: A) role of atrial cardiomyopathy in atrial fibrillation; B) genetic defects predisposing to atrial fibrillation; and C) the role of inflammation in atrial fibrillation.

EXPLORE MRace: Early Feasibility Experience of Posterior Leaflet Restoration to Reduce Mitral Regurgitation Using the MRace Implant

An early feasibility study to evaluate the safety and feasibility of the MRace Implant and Delivery System to treat severe mitral regurgitation and to gather preliminary data on its performance thereby providing guidance for future clinical development. The study is a single-arm registry with the last follow-up visit at 5 years post-intervention. The study will enroll up to 10 patients at one (1) center in Brazil.

Munich Transcatheter Mitral Valve Safety and Effectiveness

The Munich Trascatheter Mitral Valve System is intended for beating heart, mitral valve replacement in patients with a diseased, damaged, or malfunctioning mitral valve. Access is provided through the Femoral Vein and transseptal approach by means of a 27Fr catheter. The bioprosthetic valve consists of a self-expanding, tri-leaflet, dry bovine-pericardial valve. The dry tissue allows the valve to be conveniently pre-loaded. The valve is available in three sizes and has been designed to reduce the complexity of implantation in comparison to other TMVR systems.

Transcatheter Mitral Valve InterventiOn Single Center Registry in CHinese Patients With Mitral Valve Disease (TORCH-M)

The purpose of this study is to evaluate the safety and effectiveness of transcatheter mitral valve intervention in Chinese population with mitral valve disease.

Hamburg TranscathEteR Mitral Valve REplacement RegiStry

The Hamburg TranscathEteR Mitral Valve REplacement RegiStry (HERMES) is a prospective clinical cohort registry aiming to gather follow-up information on short- and long-term outcome of patients with mitral valve disease that undergo transcatheter mitral valve replacement (TMVR) screening. In particular, long-term durability and function of implanted bioprosteses is of utmost interest for both patients and clinicians. Moreover, this study aimes to investigate and compare the different treatment strategies patients undergo after successful or unsuccessful screening for TMVR.

Multicenter Post-Market Observational Registry of the NeoChord Artificial Chordae Delivery System

The objective of this study is to evaluate the 5-year outcomes of participants with degenerative mitral valve disease treated with the NeoChord Artificial Chordae System, Model DS1000 in a post-market setting.