title: True aneurysmal dilatation of a contegra conduit after right ventricular outflow tract reconstruction: a novel mechanism of conduit failure.
abstract: Valved conduits are frequently used in congenital heart surgery to establish continuity between the right ventricle and the pulmonary arteries. The Contegra bovine jugular vein (Medtronic Inc, Minneapolis, MN) is a conduit that incorporates a tri-leaflet valve and affords off-the-shelf availability, good handling characteristics, and excellent hemodynamics. However, complications related to the use of this device have been reported, with conduit failure occurring mainly as a consequence of stenosis, conduit thrombosis, and valve regurgitation. We present a case of aneurysmal conduit failure of a 14-mm Contegra conduit used to reconstruct the right ventricular outflow tract.
authors.affiliation: Department of Cardiac Surgery, Children's Hospital Boston-Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Victor
authors.initials: V
authors.lastname: Bautista-Hernandez
authors.forename: Aditya K
authors.initials: AK
authors.lastname: Kaza
authors.forename: Oscar J
authors.initials: OJ
authors.lastname: Benavidez
authors.forename: Frank A
authors.initials: FA
authors.lastname: Pigula
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis / Q000601:surgery; D000783:Aneurysm / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D000792:Angiography / Q000379:methods; D000818:Animals; D001705:Bioprosthesis / Q000009:adverse effects*; D006348:Cardiac Surgical Procedures / Q000009:adverse effects* / Q000379:methods; D002417:Cattle; D002675:Child, Preschool; D015150:Echocardiography, Doppler / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006330:Heart Defects, Congenital / Q000150:complications / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008944:Mitral Valve Insufficiency / Q000209:etiology / Q000601:surgery; D011475:Prosthesis Failure; D019651:Plastic Surgery Procedures / Q000379:methods*; D012086:Reoperation / Q000379:methods; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome; D014694:Ventricular Outflow Obstruction / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*