Innovations 2004 page 3 of 5
LEFT ATRIAL APPENDAGE LIGATION
The left atrial appendage is a small, ear-shaped tissue flap located in the left atrium. This tissue is a common source of blood clots in patients who have atrial fibrillation.
Physicians and researchers at Cleveland Clinic have developed a ligation device for clipping and isolating the left atrial appendage during heart surgery. Clinical trials of this device will begin in mid-2006.
THE WATCHMAN ® LEFT ATRIAL APPENDAGE FILTER SYSTEM
The Left Atrial Appendage Filter System is a rounded, self-expanding device that isolates the left atrial appendage and prevents clots from dislodging. This device can be permanently implanted in the ostium of the left atrial appendage during an interventional procedure.
The device eliminates the need for Coumadin which is often given to patients with atrial fibrillation to reduce the risk of blood clots and stroke.
Images used with permission from Atritech, Inc.
STENTLESS MITRAL VALVES
Bileaflet Valve
Bileaflet Valve with Flap-Chordae
This unique valve design is the invention of a Cleveland Clinic cardiac surgeon. Bioprosthetic valve design preserves the structural integrity of mitral annulus–papillary muscle continuity, which is essential for normal left ventricular function.
The native mitral valve provides a supporting structure for the new bioprosthesis, and stentless design makes it hemodynamically efficient.
