title: Early manifestation of noncalcific aortic stenosis after porcine valve replacement.
abstract: Symptoms of noncalcific aortic stenosis developed in a 57-year-old man 3 months after implantation of a Carpentier-Edwards porcine heterograft. The glutaraldehyde-processed bioprosthesis was removed 7 months after implantation and replaced with a No. 3 Medtronic Hall valve.
authors.affiliation: Department of Cardiology, Veterans Administration Medical Center, Pittsburgh, PA 15240.
authors.forename: M
authors.initials: M
authors.lastname: Amidi
authors.forename: P F
authors.initials: PF
authors.lastname: Ferson
authors.forename: M J
authors.initials: MJ
authors.lastname: Labuda
authors.forename: M S
authors.initials: MS
authors.lastname: Melhem
mesh_terms: D001021:Aortic Valve; D001024:Aortic Valve Stenosis / Q000209:etiology*; D001705:Bioprosthesis / Q000009:adverse effects*; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013499:Surface Properties