title: [Subaortic fibromuscular tunnel following resection of accessory mitral tissue. Surgical treatment].
abstract: When accessory mitral valve tissue obstructs the left ventricular outflow tract resection is considered a sufficient and definitive procedure. We report the unusual case of a child who had undergone such resection at the age of 4 years and who developed, over a few years, a recurrent subvalvular aortic obstacle consisting, this time, in a fibromuscular tunnel. In a second operation performed at the age of 12, a septal patch was inserted to widen the subaortic channel which was approached through a trans-septal infundibular route. Control examination showed a satisfactory pressure gradient and a sinus rhythm.
authors.affiliation: Service de chirurgie cardio-vasculaire, hôpital Bichat, Paris.
authors.forename: U
authors.initials: U
authors.lastname: Hvass
authors.forename: J
authors.initials: J
authors.lastname: Lescure
authors.forename: Y
authors.initials: Y
authors.lastname: Pansard
authors.forename: A
authors.initials: A
authors.lastname: Lamberti
authors.forename: J
authors.initials: J
authors.lastname: Caliani
mesh_terms: D002675:Child, Preschool; D004719:Endomyocardial Fibrosis / Q000209:etiology* / Q000601:surgery; D005500:Follow-Up Studies; D006349:Heart Valve Diseases / Q000601:surgery; D006801:Humans; D008297:Male; D008943:Mitral Valve; D011183:Postoperative Complications; D012086:Reoperation
vernacular_title: Tunnel fibro-musculaire sous-aortique développé après résection de tissu mitral accessoire. Traitement chirurgical.