View clinical trials related to Mitral Valve Insufficiency.
Filter by:Annuloplasty device for repair of mitral valve regurgitation with option to adjust device post implant off pump, to optimize correction of mitral regurgitation. Unlike conventional annuloplasty ring, the Cardinal system offers the clinician the opportunity to make adjustments after weaning from cardiopulmonary bypass. Adjustability is expected to reduce the number of patients leaving the operating room with residual regurgitation after mitral valve repair.
The goal of the study is to identify the patients suffering from a mitral valve condition who benefit from the implantation of a Profile 3D annuloplasty ring in terms of acute and long-term relief of mitral valve regurgitation.
The primary goal of the study is to document the number of patients that are successfully implanted and benefit from the implantation of both a CG Future Annuloplasty ring or a band.
Background: - Mitral regurgitation, or leaking of the mitral heart valve, is usually studied and assessed with an ultrasound test called a two-dimensional (2D) echocardiogram. While this test has proved very useful, technological improvements have helped researchers develop ways to study the heart valves using imaging with three-dimensional (3D) capabilities. In addition, recently developed magnetic resonance imaging (MRI) techniques may be able to provide better information about the causes and severity of the leak. Researchers are interested in testing these new techniques to determine their usefulness for patients with mitral regurgitation. Objectives: - To evaluate newer methods of studying mitral regurgitation severity using real-time 3D echocardiography (RT3DE) and cardiac magnetic resonance imaging (CMRI). Eligibility: - Individuals at least 21 years of age who have been diagnosed with more than mild mitral regurgitation. Design: - Participants will have two procedures as part of this study: an echocardiogram and an MRI scan. - For the echocardiogram, participants will have an ultrasound scan with a special kind of probe. Participants may also receive an injection of a contrast agent to provide a better image of the heart on the scan. The scan will take approximately 1 hour to complete. - For the MRI scan, participants will have a standard MRI with special pads placed on the chest to provide better imaging of the heart. The scan will usually take between 45 and 90 minutes to complete.
The investigators hypothesize that MR in humans is characterized by adrenergic overdrive, reactive nitrogen species, and an antifibrotic phenotype that relate to the severity of adverse LV remodeling prior to surgery and outcome after valve repair.
The investigators hypothesize that beta-1 receptor blockade (ß1-RB) attenuates extracellular matrix (ECM) degradation and progressive adverse Left Ventricular (LV) remodeling and failure in the volume overload of mitral regurgitation (MR). Patients without coronary artery disease and moderate MR, as assessed by color/flow Doppler echocardiography, will be randomized to ß1-RB vs. placebo to address the following aims: *Aim 1: Establish whether ß1-RB attenuates adverse LV remodeling compared to placebo in patients with non-surgical, chronic MR. Using 3-dimensional magnetic resonance imaging (MRI) and tissue tagging, LV function and geometry will be assessed at baseline and every 6 months for up to 2 years. Aim 2: Determine whether indices of inflammation correlate with degree of LV remodeling and whether ß1-RB decrease indices of inflammation and collagen turnover. At the time of MRI, blood samples for collagen breakdown products, matrix metalloproteinase (MMP) activity, and markers of excess production of reactive inflammatory species (RIS) will be obtained and related to changes in LV remodeling defined by serial 3-dimensional MRI and tissue tagging.
People with coronary artery disease (CAD) or people who have had a heart attack may develop a leak in the mitral valve of their heart and may therefore need to undergo surgery to fix the valve. The best way to fix the mitral valve remains undetermined. This study will evaluate whether it is better for people with severe mitral valve leakage to undergo a mitral valve replacement procedure or a mitral valve repair procedure.
Coronary artery bypass grafting (CABG) is a procedure that people with coronary artery disease (CAD) may undergo to increase blood flow to the heart. During a CABG procedure, people who have a leak in one of the valves in the heart—the mitral valve—may at the same time undergo a procedure that repairs the valve. This study will evaluate whether people with moderate mitral valve leakage would be better off undergoing CABG plus the mitral valve repair procedure or undergoing CABG alone.
Prospective single-arm study of the AccuCinch® Ventriculoplasty System in the treatment of mitral valve regurgitation through subvalvular mitral repair. Purpose: To demonstrate the safety, feasibility and potential efficacy of using the AccuCinch® Ventriculoplasty System to reduce mitral valve regurgitation through subvalvular mitral repair.
This clinical study is a multicenter, prospective non-randomized observational study without concurrent or matched controls in which 150 patients receiving an SJM® Rigid Saddle Ring will be included. The primary objective of the study is to demonstrate the effectiveness of the SJM® Rigid Saddle Ring when used in mitral valve repair procedures.