The sequence of valve deployment is initiated, beginning by withdrawing the outer sheath to allow the ventricular arms of the device to blossom. Once the ventricular side is opened, the device is withdraw towards the left atrium. This “traps” the anterior and posterior leaflets of the native mitral valve between the body of the SMV device and the ventricular arms. This is important for secure anchoring in the mitral position.

View full article: Transcatheter Mitral Valve Replacement: Update on New Devices.