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Right arrow Congenital - cyanotic

Ann Thorac Surg 2007;83:682-684
© 2007 The Society of Thoracic Surgeons

Case Reports

Aneurysmal Dilatation of the Contegra Bovine Jugular Vein Conduit After Reconstruction of the Right Ventricular Outflow Tract

Eva Maria Delmo-Walter, MDa,*, Vladimir Alexi-Meskishvili, MD, PhDa, Hashim Abdul-Khaliq, MD, PhDb, Rudolf Meyer, MD, PhDc, Roland Hetzer, MD, PhDa

a Department of Cardiovascular and Thoracic Surgery, Deutsches Herzzentrum Berlin, Germany
b Department of Pediatric Cardiology and Congenital Heart Diseases, Deutsches Herzzentrum Berlin, Germany
c Department of Pathology, Deutsches Herzzentrum Berlin, Germany, Deutsches Herzzentrum Berlin, Germany

Accepted for publication June 19, 2006.

* Address correspondence to Dr Delmo-Walter, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 10353 Berlin. (Email: delmo-walter{at}dhzb.de).

An aneurysm of a 14-mm Contegra bovine conduit 5 years after a total repair of tetralogy of Fallot was confirmed by echocardiography, angiography, and magnetic resonance tomography. The conduit was replaced. Histologic examination of the explanted conduit revealed an acellular homogenous material with occasional elastic fibers, fragile, diffuse and complex collagenization throughout the conduit and mild foreign body reaction. Pannus formed over the top of all commissures and on the conduit wall, with extensive mineralization. Close follow-up is seen as mandatory for early detection of the bovine vein conduit aneurysm, particularly in patients in whom small-sized conduits are implanted.




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