[Subaortic fibromuscular tunnel following resection of accessory mitral tissue. Surgical treatment].
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.
Hvass
U
U
Service de chirurgie cardio-vasculaire, hôpital Bichat, Paris.
Lescure
J
J
Pansard
Y
Y
Lamberti
A
A
Caliani
J
J
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
Tunnel fibro-musculaire sous-aortique développé après résection de tissu mitral accessoire. Traitement chirurgical.