Mitral valve repair for anterior leaflet prolapse with expanded polytetrafluoroethylene sutures

Area of Science:

• Cardiovascular Surgery
• Echocardiography
• Biomaterials in Medicine

Background:

• Assesses long-term outcomes of mitral valve repair using expanded polytetrafluoroethylene (ePTFE) sutures.
• Focuses on anterior mitral leaflet prolapse as the primary indication.
• Utilizes Doppler echocardiography for detailed valve assessment.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of mitral valve repair for anterior mitral leaflet prolapse.
• To assess the durability of repair using ePTFE sutures.
• To determine freedom from reoperation and severe mitral regurgitation over time.

Main Methods:

• Prospective Doppler echocardiographic assessment of 204 patients undergoing mitral valve repair with ePTFE sutures.
• Follow-up period from April 1992 to December 2003.
• Classification of residual mitral regurgitation based on regurgitant jet area.

Main Results:

• 12-year survival and freedom from reoperation rates were 84.6% and 89.9%, respectively.
• 80.9% of patients had less than mild regurgitation post-discharge.
• 12-year freedom from severe mitral regurgitation was 88.1%.

Conclusions:

• Chordal replacement with ePTFE sutures offers good long-term results for anterior mitral leaflet prolapse.
• High intraoperative valve competence is essential to prevent recurrent regurgitation.
• ePTFE sutures represent a viable option for mitral valve repair in selected patients.