نتایج جستجو برای: mitral valve
تعداد نتایج: 117034 فیلتر نتایج به سال:
Minimally invasive mitral valve repair is based on several procedural concepts. Recently, three of them have been intensively discussed: aortic occlusion strategy, use of Goretex-Neo-Chordae to repair mitral valve regurgitation and feasibility and efficacy of the minithoracotomy approach in mitral valve treatment of patients after previous cardiac surgery. Twenty years of experience in minimall...
Mitral regurgitation may develop when the leaflets or any other portion of the apparatus becomes abnormal. As the repair techniques for mitral valve disease evolved, so has the need for detailed and accurate imaging of the mitral valve prior to surgery in order to better define the mechanism of valve dysfunction and the severity of regurgitation. In patients with significant mitral valve diseas...
OBJECTIVES The study aimed to evaluate the feasibility of off-pump transapical mitral valve-in-ring implantation and to test the performance of a custom-made self-expandable stent valve, in comparison with the standard SAPIEN valve. METHODS Acute experiments were performed in five pigs. Animals (mean weight 58.4 ± 7.3 kg) underwent mitral valve annuloplasties under cardiopulmonary bypass usin...
We report a 71-year-old man with severe mitral valve regurgitation in end stage heart failure intractable to medical treatment. He underwent mitral valve repair, coronary artery bypass grafting and tricuspid annuloplasty, and his postoperative course was uneventful with significant improvement of his symptoms. Mitral valve repair should be considered as a treatment modality in patients with car...
BACKGROUND High morbidity and mortality due to Rheumatic heart disease (RHD) associated with females is mainly because of late diagnosis on one hand and socioeconomic reasons on the other hand. Poor referral to tertiary care centres leads to delayed diagnosis which results in complications. The objectives of this cross-sectional descriptive study was to assess the frequency of severe mitral ste...
BACKGROUND The purpose of this study was to report our 19-year experience in redo surgery for failure of mitral valve repair (MVRep) in degenerative disease. METHODS From 1987 to 2006, 43 consecutive patients (32 males) underwent either redo MVRep (n = 21) or redo mitral valve replacement (n = 22) for failure of MVRep. Age ranged from 10 to 78 years (median, 59 years). Forty-one patients (95%...
It is known that rheumatic heart disease frequently results in isolated mitral regurgitation without concomitant mitral stenosis, especially in countries with a high prevalence of rheumatic fever. However, more recent surgical pathologic data also have demonstrated a high incidence of mitral valve prolapse in cases of rheumatic heart disease, which suggests that rheumatic fever may be a cause o...
M-mode echocardiography was performed in 54 patients 1 month to 3 years after mitral valvotomy for dominant mitral stenosis. The mitral valve closure index (MVCI), an index previously shown to correlate well with the calculated mitral valve area, was used to diagnose residual mitral stenosis. Using the equation MVCI = 33 MVC--12, 12 patients (22%) were deemed to have mild, 4 (7%) moderate, and ...
Aortic-mitral valve discontinuity has previously been described in double outlet right ventricle, endocardial cushion defect, single ventricle, tetralogy of Fallot, and prolapse of the mitral valve. We are reporting two additional examples of aortic-mitral valve discontinuity including 15 cases of gross left ventricular dilation and a case of acute pneumococcal bacterial endocarditis with a la...
The anterior leaflet of the mitral valve is partly continuous through a fibrous membrane with the aortic valve. Lying immediately subjacent to the aortic valve, the mitral valve and its chordae may become secondarily infected in instances of primary aortic valvular bacterial endocarditis. Destructive changes of the anterior mitral leaflet or mitral chordae may lead to mitral insufficiency. The ...
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