Implantation techniques: a primary consideration in valve surgery.
Clean site preparation for a prosthesis is mandatory to avoid tissue interference with the prosthesis. Oversizing of a prosthesis is fraught with peril. In all types of prostheses, orientation has importance. A prosthesis is designed with consideration for axial flow. Tilting the valve in implantation will likely result in a dysfunctional valve. The sewing ring serves not as a gasket but as an additional factor that increases the possibilities of success of a properly implanted valve by taking advantage of its naturally compliant features.
DeWall
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Wright State University Medical School, Dayton, Ohio.
Ellis
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D001021:Aortic Valve; D006350:Heart Valve Prosthesis; D006801:Humans; D008722:Methods; D008943:Mitral Valve; D013536:Suture Techniques