Does insertion of a Dacron fabric gusset enlarge a hypoplastic aortic root sufficiently to accommodate a functional aortic valve prosthesis?
Describes a surgical technique using a Dacron fabric gusset to enlarge a hypoplastic aortic root, allowing for the insertion of an adequately sized aortic valve prosthesis to prevent left ventricular outflow obstruction.
We report a technique for the enlargement of a hypoplastic aortic root by an operation whereby the hypoplastic aortic root has been so enlarged by the insertion of a Dacron fabric gusset that it will accommodate a size 9A or larger Starr-Edwards prosthesis. Our experience in five patients is described. No matter what type of valve is used for replacement of a diseased aortic valve, and no matter what improved designs of valvular prosthesis are ultimately developed, it will be necessary (in the particular group described) to enlarge the aortic ring to accommodate a size which will function correctly without causing left ventricular outflow obstruction.
Nicks et al. (1970) studied this question.