Aortic Replacement
نویسندگان
چکیده
COMPLETE valvular replacement is the only feasible method for treatment of many cases of aortic valvular disease. While the long-term results will not be known for some time, the prognosis without operation, in carefully selected patients, is so poor as to justify this approach. Our total experience, consisting of a group of 16 such patients undergoing aortic replacement with the ballvalve prosthesis in various stages of development, forms the basis of this preliminiary report. Flexible leaflets of porous or nonporous nmaterials, as single units or in tricuspid assembly, have been used for aortic replacement during the past few years, with satisfactory results. Harken has reported on the use of an aortic ball-valve prosthesis which has not yet gained widespread use.1 Engineering experience gained from the development of the mitral ball valve in this laboratory and the excellent long-term results following its clinical use prompted a re-evaluation of this type of prosthesis in the aortic root.2 3
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