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The Melody Valve in Small Children Undergoing First Mitral Valve Replacement: Better Than Mechanical?
Ann Thorac Surg Short Rep
September 2024
Department of Cardiovascular and Thoracic Surgery, University of Texas Southwestern Medical Center and Children's Medical Center, Dallas, Texas.
Background: In small children with left atrioventricular valve dysfunction, valve repair is preferred but some will require valve replacement. No prosthetic valve has growth potential, bioprostheses have poor durability, and mechanical prostheses have high rates of thromboembolic and hemorrhagic complications. We reviewed our experience with a modified bovine jugular vein valve designed for use in the right ventricular outflow tract (Melody valve, Medtronic) and compared this with contemporary mechanical valve replacement.
View Article and Find Full Text PDFPercutaneous pulmonary valve implantation guided by three-dimensional rotational angiography.
Int J Cardiol Congenit Heart Dis
December 2024
Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands.
Objectives: To describe the workflow and value of three-dimensional rotational angiography (3DRA) in percutaneous pulmonary valve implantation (PPVI).
Background: 3DRA offers visualization of the entire topography in the chest and may enhance safety and reduce the risk for complications in PPVI through improved pre-procedural planning and per-procedural guidance.
Methods: All PPVI procedures with the use of 3DRA performed between August 2011 and December 2022 were reviewed.
Interventional Treatment of Acute Right Ventricular Outflow Tract Infectious Endocarditis: A Bridge to Surgical or Percutaneous Pulmonary Valve Replacement.
Catheter Cardiovasc Interv
December 2024
Centre de Référence Malformations Cardiaques Congénitales Complexes-M3C, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France.
Background: Infective endocarditis (IE) poses significant risks following percutaneous pulmonary valve implantation (PPVI) or surgical replacement (PVR).
Aims: This study evaluates the effectiveness of emergency percutaneous treatment in stabilizing patients with severe right ventricular dysfunction or obstructive cardiac shock, allowing for delayed surgical or percutaneous valve replacement.
Methods: This retrospective study examines 16 patients (age 19.
Anodic Oxide Films Grown in Dehydrated Phosphate/Glycerol Electrolytes at High Temperatures.
Langmuir
December 2024
Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, China.
Traditional anodization was generally conducted in aqueous or water-containing solutions at room temperature or even lower temperatures. The two best known examples of the application of traditional anodization in the fabrication of nanostructured oxides are porous anodic alumina and titania nanotube films. In 1998, Melody et al.
View Article and Find Full Text PDFDebris Embolization to the Lung After a Bioprosthetic (Mitroflow®) Valve Fracture.
Catheter Cardiovasc Interv
January 2025
Complejo Hospitalario Universitario Insular Materno Infantil, Las Palmas, Spain.
This case report shows a valve in valve procedure in pulmonary position of a 19-year-old male with a repaired Tetralogy of Fallot. After initial correction, a Mitroflow 23 mm bioprosthetic valve was implanted in pulmonary position. Nine years later severe degeneration of the valve occurred.
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