An anatomical study of a new method for enlargement of narrowed aortic annulus: Intra-arterial aorto-infundibuloplasty

Abstract

A new procedure "intraarterial aorto-infundibuloplasty" for the narrowed aortic annulus is described. Aortic valve replacement is performed through an aorto-pulmonary and infundibular septal incision which is eventually enlarged by a single patch, i.e., a two-dimensional patch instead of a three-dimensional patch as in Konno's procedure. An anatomical study showed that a prosthetic valve three sizes larger than the natural annular diameter could be implanted and the natural annular diameter was increased by as much as 42%.

Aortic Valve Replacement in the Calcified Small Aortic Root by Hemitranslocation of the Valve

“…The replacement of a small aortic valve produces a major transvalvular gradient. Several techniques have been reported (1)(2)(3)(4)(5)(6). However, these techniques are complicated, time consuming, difficult to learn, and fraught with complications.…”