Left ventricular free-wall plication for ischemic cardiomyopathy: safe and effective?

Area of Science:

• Cardiovascular Surgery
• Cardiac Resynchronization Therapy
• Myocardial Reconstruction

Background:

• Myocardial scarring, particularly in the inferior or lateral walls, can impair cardiac function and lead to heart failure.
• Surgical interventions are explored to address structural abnormalities and improve ventricular performance.

Purpose of the Study:

• To evaluate the efficacy of free-wall plication in reducing ventricular volumes and improving ejection fraction in patients with myocardial scarring.
• To assess the impact of this procedure on mitral regurgitation and long-term hemodynamic outcomes.

Main Methods:

• Free-wall plication was performed in 10 patients using U-stitches under cardiopulmonary bypass and aortic cross-clamping.
• Concomitant procedures included mitral annuloplasty in six patients and mitral valve replacement in one patient.

Main Results:

• A significant reduction in end-systolic volume and a notable increase in ejection fraction were observed immediately post-procedure.
• One patient experienced a postoperative death.
• Hemodynamic benefits showed partial attenuation during follow-up, but the grade of mitral regurgitation remained stable.

Conclusions:

• Free-wall plication is a viable surgical option for managing myocardial scarring, offering acute improvements in cardiac function.
• The procedure demonstrates a sustained effect on mitigating mitral regurgitation, despite partial loss of initial hemodynamic gains.