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Bioprosthetic dysfunction caused by preserved native valve in tricuspid position
Mariko Kobayashi1, Toshihide Asou, Zong-Bo Lin
1Department of Thoracic and Cardiovascular Surgery, Kitasato University, Kanagawa 232-8555, Japan.
Asian Cardiovascular & Thoracic Annals
|March 29, 2005
Summary
A rare case of bioprosthetic valve dysfunction in a 4-year-old girl is presented. Adhesion of native valve leaflets caused tricuspid insufficiency and stenosis, necessitating valve replacement.
Area of Science:
- Pediatric Cardiology
- Biomedical Engineering
- Cardiac Surgery
Background:
- Bioprosthetic valves are used in pediatric cardiac surgery.
- Valve dysfunction can occur, though rare in young children.
- Tricuspid valve replacement is a complex procedure.
Observation:
- A 4-year-old girl presented with symptoms of bioprosthetic valve dysfunction.
- The tricuspid bioprosthetic valve exhibited severe insufficiency and stenosis.
- Pathological examination revealed adhesion of native valve leaflets.
Findings:
- The adhesion of preserved native valve leaflets to the bioprosthesis caused the dysfunction.
- This rare complication led to significant tricuspid regurgitation and obstruction.
- Surgical intervention involved valve replacement.
Implications:
- Highlights the importance of careful surgical technique in pediatric valve replacement.
- Suggests potential for rare complications even with modern bioprosthetic materials.
- Emphasizes the need for long-term monitoring of pediatric bioprosthetic valves.