[Dual Repair for Ischemic/Functional Mitral Regurgitation].

Area of Science:

• Cardiology
• Cardiac Surgery
• Medical Devices

Background:

• Functional mitral regurgitation (FMR) presents surgical challenges, particularly in the context of ventricular disease.
• Current treatments like M-clip may not fully address the underlying ventricular pathology in FMR.

Purpose of the Study:

• To evaluate the efficacy of a novel
• dual repair
• surgical technique for functional mitral regurgitation (FMR).
• To assess the impact of ventricular restoration combined with papillary muscle repositioning on FMR severity and cardiac function.

Main Methods:

• A retrospective review of 11 patients (9 males, mean age 63±12 years) who underwent
• dual repair
• surgery.
• The procedure involved anterior relocation of papillary heads/muscles and simplified ventricular restoration (frozen-apex restoration).

Main Results:

• Postoperative FMR severity significantly decreased from 2.7±0.9 to 0.9±0.5 (p<0.001).
• New York Heart Association (NYHA) class improved from 3.7±0.8 to 1.8±0.6 (p<0.001).
• Left ventricular dimensions reduced, ejection fraction (EF) increased (23±8% to 28±10%, p=0.04), and right ventricular pressure decreased.

Conclusions:

• Ventricular treatment via
• dual repair
• surgery is effective in managing FMR.
• This surgical approach may serve as a valuable compensatory treatment option, potentially complementing catheter-based interventions.