Correction of Bileaflet Mitral Valve Prolapse Through Reduction of Posterior Leaflet Height

Mitral regurgitation due to bileaflet prolapse can be corrected with height reduction of the posterior leaflet through detachment at its base, division of accompanying secondary chordae, and leaflet-annular reapproximation. This technique lowers the posterior leaflet height to approximately 1.5 cm, thereby displacing the line of coaptation posteriorly to achieve symmetry without the need for additional artificial chordae. Of 37 patients who underwent this type of repair at our institution, no patient had recurrent mitral regurgitation >= 2 at an average follow-up of 1.9 years (range, 0.2-4.5). (C) 2021 by The Society of Thoracic Surgeons

Automated summary

Mitral regurgitation due to bileaflet prolapse can be corrected by reducing the height of the posterior leaflet, with no recurrence observed during follow-up in patients who underwent this type of repair.