"Patch-glue" annular reconstruction for mitral valve replacement in severely calcified mitral annulus

Area of Science:

• Cardiovascular Surgery
• Cardiac Valve Repair
• Biomaterials in Medicine

Background:

• Severe annular calcification poses significant risks during mitral valve replacement, including atrioventricular rupture, coronary artery injury, and thromboembolic events.
• Traditional surgical approaches may be limited in managing extensive calcification, necessitating innovative techniques.

Observation:

• Two patients with massive annular calcification underwent mitral valve replacement using a Tissucol fibrin glue-treated Teflon patch.
• The patch was sutured to the posterolateral atrial wall to reinforce the annulus and facilitate valve implantation.

Findings:

• Both patients experienced successful mitral valve replacement with no immediate or early complications.
• At 30 and 34 months post-surgery, both valves were functioning normally.
• Patients remained asymptomatic and free from hemorrhagic and thromboembolic events, indicating long-term safety and efficacy.

Implications:

• This fibrin glue-patch technique offers a promising solution for mitral valve replacement in patients with severe annular calcification.
• It potentially reduces the risk of major perioperative complications and improves long-term outcomes.
• Further research and larger studies are warranted to validate this approach in a broader patient population.