title: Disc erosion in Models 103 and 104 of Beall mitral valve prostheses.
abstract: Three cases of severe disc variance and erosion of the Teflon-disc Beall mitral valve prosthesis (Models 103 and 104) are reported. In two patients, the Beall mitral valves were excised and replaced with two Björk-Shiley mitral valves. The remaining patient did not survive, and at autopsy, the lens was found at the aortic bifurcation level. Because of this potentially lethal complication, careful follow-up of patients with Beall mitral valve prostheses (Models 103 and 104) is recommended.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, La Paz Hospital. Autonomous University of Madrid, Madrid-34, Spain.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Gómez
authors.forename: María José
authors.initials: MJ
authors.lastname: Verduras
authors.forename: Alfonso
authors.initials: A
authors.lastname: Lopez-Quintana
authors.forename: Luis
authors.initials: L
authors.lastname: Riera
authors.forename: Ignacio
authors.initials: I
authors.lastname: Zerolo
authors.forename: Cristóbal
authors.initials: C
authors.lastname: Martinez-Bordiu