Long-Term Results of Edge-to-Edge and Neochordal Mitral Repair for Isolated Anterior Leaflet Lesion: A Propensity Match Analysis

This study aimed to compare the clinical and echocardiographic long-term results of edge-to-edge (E-to-E) repair and neochordal repair, both associated with ring annuloplasty, for isolated anterior mitral leaflet lesions using propensity match analysis. A retrospective review of an institutional database from 2000 to 2021 was conducted using the Kaplan–Meier method and cumulative incidence function. Cox regression was used to identify risk factors for mortality during follow-up. The estimated freedom from reoperative mitral valve surgery at 20 years was 78 percent in the E-to-E group and 64 percent in the neochordal group. Additionally, longitudinal analysis of the mitral regurgitation recurrence rate showed a higher rate of recurrence in the neochordal group at 5, 10, and 15 years.