title: [Report of a severely deformed and calcified equine pericardial patch using for intracardiac repair of tetralogy of Fallot].
abstract: An 11-year-old boy with tetralogy of Fallot had undergone palliative right ventricular outflow tract reconstruction twice previously. After the second palliative surgery recurrent mediastinitis persisted. At the age of 5 years and 11 months, he underwent closure of VSD and reconstruction of the right ventricular outflow tract with an equine pericardial patch after removal of the infected prosthetic material. The postoperative course was uneventful, however, severe pulmonary stenosis developed 6 years later. The stenosis was caused by the severely deformed and calcified equine pericardial patch used for intracardiac repair. The reason for severe calcification seemed to be the accentuated calcium metabolism in children, hemodynamic stress and persistent infection.
authors.affiliation: Department of Cardiovascular Surgery, Tenri Hospital, Nara, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Matsuyama
authors.forename: S
authors.initials: S
authors.lastname: Miki
authors.forename: Y
authors.initials: Y
authors.lastname: Ueda
authors.forename: Y
authors.initials: Y
authors.lastname: Okita
authors.forename: T
authors.initials: T
authors.lastname: Tahata
authors.forename: T
authors.initials: T
authors.lastname: Sakai
mesh_terms: D001705:Bioprosthesis / Q000009:adverse effects; D002114:Calcinosis / Q000209:etiology*; D002648:Child; D006801:Humans; D008297:Male; D008480:Mediastinitis / Q000601:surgery*; D010166:Palliative Care; D010496:Pericardium; D011666:Pulmonary Valve Stenosis / Q000209:etiology; D012086:Reoperation; D013771:Tetralogy of Fallot / Q000601:surgery*