title: Complete Transversal Disc Fracture in a Björk-Shiley Delrin Mitral Valve Prosthesis 43 Years After Implantation.
abstract: A patient who underwent previous implantation of a mitral valve replacement with a Björk-Shiley Delrin (BSD) mitral valve prosthesis during infancy was admitted to our institution 43 years later after an episode of syncope and cardiac arrest. Under extreme hemodynamic instability, a mitral valve prosthetic dysfunction causing massive mitral regurgitation was identified. The patient underwent an emergent cardiac operation, and a complete disc fracture with partial disc migration was found. Exceptional cases of mechanical prosthetic heart valve fracture exist. We report the first case of complete transversal disc rupture of a BSD mitral valve prosthesis after the longest period of implantation ever reported in that position.
authors.affiliation: Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: Jose María
authors.initials: JM
authors.lastname: González-Santos
authors.affiliation: Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain. Electronic address: elearnaiz@hotmail.com.
authors.forename: María Elena
authors.initials: ME
authors.lastname: Arnáiz-García
authors.affiliation: Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: María José
authors.initials: MJ
authors.lastname: Dalmau-Sorlí
authors.affiliation: Anesthesiology Department, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: Jose Alfonso
authors.initials: JA
authors.lastname: Sastre-Rincón
authors.affiliation: Cardiology Department, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: Jesús
authors.initials: J
authors.lastname: Hernández-Hernández
authors.affiliation: Intensive Medical Care Unit, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: María Elena
authors.initials: ME
authors.lastname: Pérez-Losada
authors.affiliation: Intensive Medical Care Unit, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: Víctor
authors.initials: V
authors.lastname: Sagredo-Meneses
authors.affiliation: Cardiac Surgery Department, University Hospital of Salamanca, Salamanca, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: López-Rodríguez
mesh_terms: D001705:Bioprosthesis / Q000009:adverse effects*; D017548:Echocardiography, Transesophageal / Q000379:methods; D004638:Emergency Treatment / Q000379:methods; D015199:Extracorporeal Membrane Oxygenation; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects* / Q000379:methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000002:abnormalities / Q000601:surgery*; D011474:Prosthesis Design / Q000379:methods*; D011475:Prosthesis Failure; D012086:Reoperation / Q000379:methods; D012117:Resins, Synthetic; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D012117:Resins, Synthetic; C010102:delrin