True aneurysmal dilatation of a contegra conduit after right ventricular outflow tract reconstruction: a novel mechanism of conduit failure

Ann Thorac Surg. 2008 Dec;86(6):1976-7. doi: 10.1016/j.athoracsur.2008.04.104.


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.

Publication types

  • Case Reports

MeSH terms

  • Abnormalities, Multiple / diagnosis
  • Abnormalities, Multiple / surgery
  • Aneurysm / diagnosis
  • Aneurysm / etiology*
  • Aneurysm / surgery
  • Angiography / methods
  • Animals
  • Bioprosthesis / adverse effects*
  • Cardiac Surgical Procedures / adverse effects*
  • Cardiac Surgical Procedures / methods
  • Cattle
  • Child, Preschool
  • Echocardiography, Doppler / methods
  • Female
  • Follow-Up Studies
  • Heart Defects, Congenital / complications
  • Heart Defects, Congenital / diagnosis
  • Humans
  • Magnetic Resonance Imaging
  • Mitral Valve Insufficiency / etiology
  • Mitral Valve Insufficiency / surgery
  • Prosthesis Failure*
  • Reconstructive Surgical Procedures / methods*
  • Reoperation / methods
  • Risk Assessment
  • Time Factors
  • Treatment Outcome
  • Ventricular Outflow Obstruction / diagnosis
  • Ventricular Outflow Obstruction / etiology
  • Ventricular Outflow Obstruction / surgery*