Sequentially deployed transcatheter mitral valve prosthesis

A method of delivering an implantable prosthetic valve to a patient's heart, the patient's heart having a mitral valve with an anterior leaflet and a posterior leaflet, said method comprising:

• providing a prosthetic valve, wherein the prosthetic valve comprises an expandable frame having a first end, a second end opposite the first end, a first anterior tab on an anterior portion of the expandable frame, a posterior tab on a posterior portion of the expandable frame, and a ventricular skirt adjacent the first end of the expandable frame;
• delivering the prosthetic valve in a collapsed configuration to the patient's heart;
• expanding the first anterior tab radially outward such that the first anterior tab engages a first fibrous trigone on a first side of the anterior leaflet of the mitral valve;
• after radially expanding the first anterior tab, radially expanding the ventricular skirt outward thereby engaging the anterior leaflet,
• wherein the anterior leaflet and adjacent anterior chordae tendineae are disposed between the first anterior tab and an outer anterior surface of the ventricular skirt;
• after radially expanding the ventricular skirt, radially expanding the posterior tab outward such that the posterior leaflet of the mitral valve and adjacent posterior chordae tendinae are disposed between the posterior tab and an outer posterior surface of the ventricular skirt.