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Updated: Aug 28, 2025

Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
Artificial chordae for mitral valve repair.
Igor Vendramin1, Aldo D Milano2, Angela Pucci3
1Cardiothoracic Department, University Hospital, Udine, Italy.
Rupture of artificial neo-chordae can cause mitral regurgitation after valve repair. While rare, this complication necessitates careful patient follow-up to ensure durable repair stability.
Area of Science:
- Cardiovascular Surgery
- Biomaterials Science
Background:
- Mitral valve repair using expanded polytetrafluoroethylene (ePTFE) neo-chordae is common.
- The failure rate of ePTFE neo-chordae leading to recurrent mitral regurgitation is not well-established.
Purpose of the Study:
- To define the incidence and characteristics of neo-chordae failure after mitral valve repair.
- To identify potential causes and pathological findings associated with ePTFE neo-chordae complications.
Main Methods:
- Systematic review of reported complications following mitral valve repair with neo-chordae.
- Literature search conducted via PubMed, Medline, and Google Scholar.
Main Results:
- Identified 26 cases of ePTFE neo-chordae rupture, often reported as isolated incidents.
- Pathological findings revealed consistent neo-chordae pliability and length, with rupture linked to suture size; calcification and infection were rare.
- Some recurrent mitral regurgitation cases were attributed to technical errors rather than neo-chordal failure.
Conclusions:
- Artificial neo-chordae offer durable mitral valve repair with excellent late results.
- Late chordal rupture can occur, leading to reoperation for mitral regurgitation, though it is a rare complication.
- Patients undergoing mitral valve repair with artificial neo-chordae require vigilant follow-up for potential late complications.
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