Medtronic Open Pivot Aortic Valved Graft Heart Valve Disease
The Medtronic Open Pivot™ Aortic Valved Graft (AVG) combines a mechanical heart valve with a graft—a tube or conduit that replaces part of the aorta. The AVG is used when both the aortic heart valve and the aorta need to be reconstructed. The valve contains two half discs – called leaflets – that tilt to open and close with each heartbeat, regulating the flow of blood like your natural heart valve.
The Medtronic Open Pivot Mechanical Heart Valve (included in the graft) has a unique design that eliminates shallow recesses in the hinge area where blood clots may form.1,2,3
Studies have shown that a continuous, gentle flow of blood results in low levels of clotting and helps prevent damage to blood cells.2,4,5,6
The graft is made from Hemashield™ woven double velour, a material that helps facilitate healing.7
The Medtronic Open Pivot mechanical valve is made of carbon with a titanium strengthening band for outstanding durability. Mechanical valves usually last throughout a patient’s lifetime and don’t need replacement.
In a series of patient studies, the Medtronic Open Pivot heart valve was noted to be perceptibly quiet.4,8
Emery RW, Petersen RJ, Kersten TE, et al. The initial United States experience with the ATS mechanical cardiac valve prosthesis. Heart Surgery Forum. 2001; 4(4):346-353.
Kelly SGD, Verdonck PR, Vierendeels JAM, et al. A three-dimensional analysis of flow in the pivot regions of an ATS bileaflet valve. Int J Artif Organs. 1999; 22:754-763.
Van Nooten GJ, Caes F, Francois K, et al. Fifteen years’ single-center experience with the ATS bileaflet valve. J Heart Valve Dis. 2009;18(4):445-452.
Emery RW, Krogh CC, Jones DJ, et al. Five-year follow up of the ATS mechanical heart valve. J Heart Valve Dis. 2004 Mar;13(2):231-238.
ATS Medical, Inc. Pre-market approval application – Summary of Safety and Effectiveness: 2000. Washington D.C.; U.S. Food and Drug Administration. 2000.
Shiono M, Sezai Y, Sezai A, et al. Multi-institutional experience of the ATS Open Pivot bileaflet valve in Japan. Ann Thorac Cardiovasc Surg. 1996; 2(1):51-58.
Westaby S, Parry A, Giannopoulos N, Pillai R. Replacement of the thoracic aorta with collagen-impregnated woven Dacron grafts: early results. J Thorac Cardiovasc Surg. 1993 Sep;106:427-433.
Sezai A, Shiono M, Orime Y, et al. Evaluation of valve sound and its effects on ATS prosthetic valves in patient's quality of life. Ann Thorac Surg. 2000;69:507-512.
Information on this site should not be used as a substitute for talking with your doctor. Always talk with your doctor about diagnosis and treatment information.