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Stentless Freestyle Root Replacement: Distillation of Technique From a 30-Year Experience.
Ann Thorac Surg Short Rep
March 2024
Department of Cardiothoracic Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina.
In 1968, Bentall introduced a composite valve-graft that became the "gold standard" for aortic root replacement. Since then, several alternatives have arisen; one is the Freestyle (Medtronic) stentless aortic root bioprosthesis. This porcine aortic valve has excellent results, and we describe the surgical technique we have developed during our 30-year experience.
View Article and Find Full Text PDFCombined simulation and ex vivo assessment of free-edge length in bicuspidization repair for congenital aortic valve disease.
JTCVS Open
December 2024
Division of Pediatric Cardiac Surgery, Department of Cardiothoracic Surgery, Stanford University, Palo Alto, Calif.
Objective: The study objective was to investigate the effect of free-edge length on valve performance in bicuspidization repair of congenitally diseased aortic valves.
Methods: In addition to a constructed unicuspid aortic valve disease model, 3 representative groups-free-edge length to aortic diameter ratio 1.2, 1.
Comparison of Long-Term Performance of Porcine versus Pericardial Bioprostheses.
Thorac Cardiovasc Surg
January 2025
Cardiothoracic surgery, CHU de Rennes, Rennes, France.
Background: The long-term comparative results between porcine and pericardial bioprostheses for surgical aortic valve replacement (SAVR) is debated. Scarce information exists concerning direct comparative evaluation among contemporary devices. We compared late and very late results in a single center series (N=3,983 cases).
View Article and Find Full Text PDFFracture properties of porcine versus human thoracic aortas from tricuspid/bicuspid aortic valve patients via symmetry-constraint Compact Tension testing.
Sci Rep
January 2025
Department of Engineering Mechanics, KTH Royal Institute of Technology, Stockholm, Sweden.
Aneurysm rupture is a life-threatening event, yet its underlying mechanisms remain largely unclear. This study investigated the fracture properties of the thoracic aneurysmatic aorta (TAA) using the symmetry-constraint Compact Tension (symconCT) test and compared results to native and enzymatic-treated porcine aortas' tests. With age, the aortic stiffness increased, and tissues ruptured at lower fracture energy [Formula: see text].
View Article and Find Full Text PDFCorrigendum to 'Bovine pericardial versus porcine bioprosthetic aortic valves: A nationwide population-based cohort study in Korea'[The Journal of Thoracic and Cardiovascular Surgery Volume 168, Issue 5, November 2024, Pages 1438-1447.e4].
J Thorac Cardiovasc Surg
December 2024
Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. Electronic address:
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