Anterior leaflet repair with patch augmentation for mitral regurgitation

Area of Science:

• Cardiovascular Surgery
• Cardiac Valve Repair
• Mitral Valve Disease

Background:

• Anterior leaflet shortening presents surgical challenges in mitral valve repair, often leading to valve replacement.
• Rheumatic heart disease and radiation-induced valvulitis commonly cause anterior leaflet retraction.
• Mitral valve replacement necessitates anticoagulation and alters left ventricular function and geometry.

Purpose of the Study:

• To evaluate the efficacy of anterior leaflet repair using patch augmentation in patients with shortened anterior leaflets.
• To assess the outcomes of this technique in patients with rheumatic heart disease and radiation valvulitis.
• To determine if this repair method preserves left ventricular geometry and avoids anticoagulation.

Main Methods:

• A retrospective review of 42 patients undergoing mitral valve repair for shortened anterior leaflets between 1994 and 2003.
• Patients were categorized into radiation valvulitis (XR) and rheumatic heart disease (RHD) groups.
• Techniques included anterior leaflet augmentation with autologous pericardial patch, ring annuloplasty, and subvalvar debridement in RHD patients.

Main Results:

• Two late deaths in the XR group (malignancy); no deaths in the RHD group.
• Two RHD patients required reoperation for recurrent mitral regurgitation.
• All patients showed significant clinical improvement (NYHA class I-II) post-repair without induced mitral stenosis.

Conclusions:

• Anterior leaflet patch augmentation is a viable option for mitral valve repair in cases of leaflet shortening.
• This technique successfully avoids anticoagulation and preserves left ventricular geometry.
• Excellent functional improvement is observed post-repair, offering an alternative to valve replacement.