Surgeon vs Center Mitral Repair Volume and Repair Utilization in Primary Mitral Regurgitation

In a Michigan statewide quality collaborative analysis of 6,649 adults undergoing isolated surgery for primary mitral regurgitation, high surgeon-level mitral repair volume was independently associated with greater repair utilization (93 percent vs 70 percent), shorter cross-clamp times, and fewer early complications, such as permanent pacemaker implantation. Unlike center-level volume, these findings suggest that individual surgeon experience is the more consistent driver of high-quality mitral repair.