A Three-Dimensional Saddle-Shaped Annuloplasty Ring for Degenerative and Functional Mitral Insufficiency
نویسندگان
چکیده
منابع مشابه
Mitral annuloplasty vs valve replacement for mitral insufficiency.
evidence of reduced venous return and alternating end-diastolic fiber length as causative factors. To the Editor: Attie et al.' reported their experience with valve replacement in children with mitral insufficiency. They divided their patients in three groups, depending on the type of prosthesis: mechanical valves, porcine xenografts and dura mater valves. Follow up times were 6.3, 3.3 and 1.9 ...
متن کاملDehiscence of mitral valve annuloplasty: a three-dimensional diagnosis.
A 74-year old patient underwent aortic valve replacement and mitral annuloplasty (Edwards Lifesciences Physioring, 34 mm). Five weeks post-surgery, he was readmitted because of heart failure due to a severe residual mitral regurgitation. Three-dimensional (3D) echocardiography clearly demonstrated the posterolateral area of dehiscence. He underwent successful surgical refixation (Fig. 1 and Sup...
متن کاملThe influence of saddle-shaped annuloplasty on leaflet curvature in patients with ischaemic mitral regurgitation.
OBJECTIVES Reports indicate that repair procedures for ischaemic mitral regurgitation (IMR) are less durable than previously thought. Repair failure has been shown to be stress related. Leaflet curvature is the major determinant of valve stress. Theoretical and animal experiments have shown that saddle-shaped annuloplasty optimizes leaflet curvature when compared with standard flat ring annulop...
متن کاملSaddle-shaped mitral valve annuloplasty rings experience lower forces compared with flat rings.
BACKGROUND New insight into the 3D dynamic behavior of the mitral valve has prompted a reevaluation of annuloplasty ring designs. Force balance analysis indicates correlation between annulus forces and stresses in leaflets and chords. Improving this stress distribution can intuitively enhance the durability of mitral valve repair. We tested the hypothesis that saddle-shaped annuloplasty rings h...
متن کاملHomemade expanded-polytetrafluoroethylene flexible mitral annuloplasty ring.
A homemade mitral annular prosthesis has been developed using expanded-polytetrafluoroethylene material. It is safe in that it avoids the risk of prosthesis wrinkle when stitches are tied. Simultaneously, it is strong enough to prevent future stretching and rupture. This device has been implanted in 60 patients with good and stable results at 42 months of follow-up. Our flexible mitral annular ...
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ژورنال
عنوان ژورنال: The Thoracic and Cardiovascular Surgeon
سال: 2017
ISSN: 0171-6425,1439-1902
DOI: 10.1055/s-0037-1598960