نتایج جستجو برای: mitral valve
تعداد نتایج: 117034 فیلتر نتایج به سال:
AIM While the incidence of rheumatic heart disease has declined dramatically over the last half-century, the number of valve surgeries has not changed. This study was undertaken to define the most common type of valvular heart disease requiring surgery today, and determine in-hospital surgical mortality and length-of-stay (LOS) for isolated aortic or mitral valve surgery in a United States tert...
INTRODUCTION A parachute mitral valve is defined as a unifocal attachment of mitral valve chordae tendineae independent of the number of papillary muscles. Data from the literature suggests that the valve can be distinguished on the basis of morphological features as either a parachute-like asymmetrical mitral valve or a true parachute mitral valve. A parachute-like asymmetrical mitral valve ha...
Mitral web--a new concept for mitral valve repair: improved engineering design and in-vitro studies.
BACKGROUND AND AIM OF THE STUDY A new mitral valve repair concept to treat mitral regurgitation (MR) due to valve prolapse was recently proposed. In this study, an improved design of this concept is presented, and the results of preliminary hemodynamic studies conducted in an in-vitro prolapse model are reported. METHODS The new repair approach is based on using a web/net attached to a standa...
OBJECTIVES This study was done to ascertain whether three-dimensional echocardiography can facilitate the diagnosis of mitral valve abnormalities. BACKGROUND The value of the additional information provided by three-dimensional echocardiography compared with two-dimensional multiplane transesophageal echocardiography for evaluation of the mitral valve apparatus has not been assessed. METHOD...
T ranscatheter MitraClip (Abbott Vascular, Santa Clara, California) implantation has emerged as the single catheter-based technique for mitral valve repair with global adoption. Worldwide, an estimated 25,000 patients have been treated with the MitraClip so far. Typically, the incidence of major stroke after surgical mitral valve repair or replacement is similar to what is seen after surgical a...
In order to investigate relations between mitral valve closure and mechanical events at the onset of left ventricular systole, simultaneous M mode echocardiograms and phonocardiograms were recorded with the apexcardiogram and its first differential (dA/dt) in 25 normal subjects and 88 patients with heart disease. The timing of mitral and aortic valve closure and the onset and peak rate of rise ...
A 49 year old female presented with severe dyspnoea due to mitral regurgitation. Echocardiography revealed an aberrant mitral valve chord causing severe mitral regurgitation. The aberrant chord extended between the anterior mitral valve leaflet (AMVL) and the atrial septum causing AMVL prolapse. Resection of the aberrant chord and correction of the AMVL using synthetic Gore-Tex sutures was perf...
The M mode and two dimensional echocardiographic and the left ventricular end diastolic pressure was abnormalities of ruptured chorda tendinae of the mitral 18 mm Hg. Left ventricular angiography showed a dilated valve leaflets in non-rheumatic mitral valve disease have left ventricle with good contraction and severe grade IV been well documented.' 2 Echocardiographic abnormalities mitral regur...
A 69-year-old male presented with obstructive hypertrophic cardiomyopathy, mitral valve regurgitation, and myxomatous mitral valve prolapse. A spontaneous chordal rupture and acute severe mitral regurgitation resulted in abrupt clinical deterioration despite complete relief of severe left ventricular outflow tract obstruction and systolic anterior motion of the anterior mitral leaflet. The pati...
OBJECTIVE To study mitral valve function in the postoperative period after correction of the partial form of atrioventricular septal defect. METHODS Fifty patients underwent surgical correction of the partial form of atrioventricular septal defect. Their mean age was 11.8 years and 62% of the patients were males. Preoperative echocardiography showed moderate and severe mitral insufficiency in...
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