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Updated: Jan 30, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Excessive Pannus Overgrowth on the Aortic Side of Trifecta Valve Causing Severe Regurgitation
Anne Kristin Schaefer1, Martin Andreas1, Paul Werner1
1Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria.
Abstract:
Structural valve deterioration represents the most important concern regarding the implantation of a biologic heart valve in young patients. Several strategies have been proposed to improve prosthesis design in order to optimize performance and durability. This report describes an early and specific mode of valve degeneration of prostheses with outward-mounted pericardial leaflets resulting from pannus overgrowth on the aortic side. This led to leaflet retraction in two consecutive cases 4 and 6 years after the first implantation of a Trifecta valve (St. Jude Medical, St. Paul, MN).
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