title: Tricuspidization of the quadricuspid aortic valve.
abstract: Quadricuspid aortic valve anatomy is an uncommon congenital anomaly. Patients develop relevant aortic regurgitation in the 4th and 5th decade of life. Reconstruction is possible, and we recommend conversion to a tricuspid configuration.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, University Hospitals of Saarland, 66421 Homburg/Saar, Germany.
authors.forename: Diana
authors.initials: D
authors.lastname: Aicher
authors.forename: Hans-Joachim
authors.initials: HJ
authors.lastname: Schäfers