The MitraClip (white) is advanced by catheter into the left atrium, where it is positioned above the leaky valve, and then crimped in place so that the valve leaflets can close properly, preventing backflow.
Catheter-based technology is making mitral-valve repair available to people who cannot undergo heart surgery. Dero Murphy, 89, a recent recipient of the MitraClip, called the procedure's effects "a miracle."
UW Medicine Drs. Mark Reisman and Catherine Otto explain the device's rationale and its benefits.