Expanded polytetrafluoroethylene sutures have been used for replacement of chordae tendineae since 1985. They have been used for correction of prolapse of mitral and tricuspid valve leaflets as well as for resuspension of the papillary muscles during mitral valve replacement when the native chordae cannot be preserved to maintain continuity between the mitral annulus and papillary muscles. The following video details a treatment of broken mitral valve chordeae, using man-made fiber - Goretex. This procedure is performed to remove the mitral valve insufficiency and let the leaflets of the valve meet in the correct plane and act their normal function.
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