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Case Reports

Morphologic Findings of the Aortic Homograft Implanted in the Tricuspid Position

^a Cardiac Morphology Unit, National Heart and Lung Institute, Imperial College London, London, United Kingdom
^b Adult Congenital Heart Unit, Royal Brompton and Harefield NHS Trust, London, United Kingdom
^c Department of Cardio-Thoracic Surgery, Royal Brompton and Harefield NHS Trust, London, United Kingdom

Accepted for publication October 21, 2008.

^_* Address correspondence to Dr Ho, Cardiac Morphology Unit, National Heart and Lung Institute, Imperial College London, Guy Scadding Bldg, Dovehouse St, London, SW3 6LY, United Kingdom (Email: yen.ho{at}imperial.ac.uk).

We present histologic findings of the aortic homograft mounted in a woven Dacron (C.R. Bard, Haverhill, PA) tube, which had been in the tricuspid position for 68 months in a patient with Ebstein anomaly. Although the layered architecture of leaflets was relatively well preserved, prominent calcification was observed in the sinus wall that had been in direct contact with the surrounding fabric. This sinus stiffness might have contributed to worsening of the valvar function.