View clinical trials related to Mitral Valve Prolapse.
Filter by:Perfusion strategies and aortic clamping techniques for right mini-thoracotomy mitral valve (MV) surgery have evolved over time and remarkable short- and long-term results have been re-ported. However, some concerns have emerged about the adequacy of myocardial protection dur-ing the minimally invasive approach and about the role of aortic clamping strategies in this contest. Aim of this study was to compare the efficacy, in terms of myocardial protection, of the en-do-aortic clamp (EAC) versus the trans-thoracic aortic clamp (TTC) in patients undergoing right mini-thoracotomy MV repair. A single center, prospective observational study was performed between June 2014 to June 2018 on patients undergoing right mini-thoracotomy MV repair with retrograde arterial perfusion and EAC or TTC. The selection of one setting in respect to the other was patient orientated. Myocardial protection was assessed through creatinine kinase-myocardial band (CK-MB) and cardiac Troponin T (cTn-T) blood levels immediately after the surgical procedure and at 6, 12, and 24 hours and compared between the two groups.
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.
This longitudinal cohort study evaluates the relationship of myocardial tissue markers characteristics assessed by cardiac MRI, with clinical measures of symptoms and functions in adults with primary mitral regurgitation. Participants are followed conservatively or may choose to undergo surgical repair at the discretion of their clinical team.
Phenotypic characterisation of MVP by echocardiography in families. Identification of genes involved in MVP.
Mitral valve disease is a common pathologic problem occurring in approximately 2% of the general population but climbing to 10% in those over the age of 75 in Canada[1]. This project has three primary goals all of which will positively affect cardiac patient care. 1) Create patient specific MV models for complex repairs that will allow surgeons the opportunity to practice the repair. 2) Potentially predict the outcomes following minimally invasive repair techniques such as transcatheter treatments (e.g., MitraClip). 3) Provide a model to train individuals on mitral valve repair techniques.
Minimally invasive transapical off-pump chordae implantation includes features such as tachycardia, arrhythmia, hemorrhage, sudden hemodynamic changes caused by the device moving in the left ventricle and the atrium, for anesthetists. In this observational study, the investigators presented the investigators's hemodynamic recuperation and anesthesia experiences revealed by cardiac output measurement after transapical mitral valve repair.
Functional mitral insufficiency poses a challenge with regard to the optimal time of intervention, particularly because they are frequently associated with left ventricular (LV) dilation and reduced LV ejection fraction (EF). The registry will document the underlying pathology by using transthoracal echo cardiography (TTE) with analysis of common tenting parameters. OP strategies, data and outcomes will be documented, as well as follow-up data for echocardiography, quality of life and MACCE outcomes after 6 months, 1 and 2 years.
The primary objective of this study is to evaluate the safety and performance of the Harpoon Medical Device. It is anticipated, that the Harpoon Medical Device will provide advantages over current surgical interventions including: 1) a small minimally invasive incision, 2) no sternotomy, 3) no cardiopulmonary bypass, 4) no aortic manipulation, 5) a direct path to the valve plane, 6) performed on a beating heart, 7) real-time TEE-guided ePTFE cordal length adjustment and 8) less complicated procedure that is teachable and adoptable.
Mitral insufficiency (MI) accounts for 24% of adult valvulopathies and affects 7% of subjects older than 75 years. They are the second leading cause of valvulopathy in Europe. The most common etiology is the associated valvular prolapse. Mitral surgery remains the reference treatment for symptomatic MI. The success of this procedure depends on the mitral valve geometry and the location of the prolapse. The site of the prolapse, whether monovalvular, localized to the posterior or anterior leaflet, or bivalvular, influences the possibilities and probably the long-term results of the plasty.
Mitral valve prolapse (MVP) is a frequent affection of the mitral valve or its sub-valvular apparatus with a prevalence of 2-3% in the general population. This valvular disease is generally considered as benign, but may at term evolve toward mitral valve regurgitation of various severity and/or arrhythmia. Mitral valve prolapse is routinely diagnosed using transthoracic echocardiography and only patients with significant mitral regurgitation will undergo subsequent examination (24-hour external loop recording, exercise ECG, cardiac MRI) and a close follow-up. External loop recording and exercise ECG have an interest in the identification of patients presenting with arrhythmic complications, such as premature ventricular contractions, and in the global evaluation of hemodynamic consequences of the mitral regurgitation. More recently, detection of myocardial fibrosis among patients with MVP and severe ventricular arrhythmia has been identified. Fibrosis could evolve independently of the valvular regurgitation's severity and could be a substrate (myocardial scar) leading to ventricular arrhythmia. However, no study has specifically characterized myocardial lesions among patients with MVP and none, or not significant, mitral regurgitation. Using cardiac magnetic resonance imaging (MRI), gold standard technique in myocardial imaging and characterization, and echocardiography, particularly speckle-tracking imaging, identification of static (fibrosis) and/or dynamic (ventricular systolic deformation patterns using speckle-tracking strain) myocardial lesions. Identification of patients with impaired deformation patterns, fibrosis or with premature ventricular contractions may isolate a sub-group of patients with a higher risk of severe ventricular arrhythmia for whom a closer follow-up could be justified.