Chordal Replacement Versus Quadrangular Resection for Repair of Isolated Posterior Mitral Leaflet Prolapse

Repair of posterior mitral leaflet prolapse by chordal replacement is equally effective as classic quadrangular resection, permits the use of larger annuloplasty rings, offers a potentially more physiological repair with preserved leaflet mobility, and can be performed with excellent midterm results and a low incidence of reoperation.