Implanting neochordae for the repair of mitral valve prolapse using a prosthetic ring with chordal sizing system: a modified technique for myxomatous leaflets.

: The use of artificial polytetrafluoroethylene (PTFE) chordae has been widely adopted in the setting of mitral valve repair. In this tutorial, we present a modified technique for neochordae placement using a semi-rigid complete ring, with a chordal sizing system. This ring was introduced with the aim of standardizing neo-chordae implantation and we introduce a modification of the implantation technique in the presence of myxomatous leaflets.