title: Delayed appearance of left-to-right shunt following aortic valvular replacement. Report of two cases.
abstract: Two cases are presented in which a left-to-right shunt occurred late following aortic valvular replacement. In one patient a fistula was found between the aortic root and the right atrium and ventricle. In the second patient a defect developed in the membranous septum, allowing shunting from the left ventricle to both the right atrium and right ventricle.
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000503:physiopathology / Q000601:surgery; D005402:Fistula / Q000209:etiology*; D005500:Follow-Up Studies; D006321:Heart / Q000503:physiopathology*; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged