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Tricuspid valve replacement after cardiac transplantation
S Ichikawa1, Y Takeuchi, Y Suda
1Department of Cardiovascular Surgery, Tokyo Women's Medical University, Daini Hospital, Japan.
Summary
Severe tricuspid regurgitation after heart transplant can occur, requiring valve replacement. Damage to the tricuspid valve
Area of Science:
- Cardiology
- Cardiac Surgery
- Transplantation Medicine
Background:
- Tricuspid regurgitation is common post-cardiac transplantation, usually mild.
- The causes of tricuspid regurgitation after transplantation are not fully understood.
- Surgical experience with tricuspid valve replacement in transplant patients is limited.
Observation:
- A case of progressively severe tricuspid regurgitation developed after cardiac transplantation.
- Surgical findings included ruptured chordae and partially flail leaflets of the tricuspid valve.
- Damage to the tricuspid subvalvular apparatus, possibly from endomyocardial biopsy, was suspected.
Findings:
- Tricuspid valve replacement was ultimately required due to severe regurgitation.
- A 31-mm Carpentier-Edwards porcine valve was implanted.
- Porcine valve chosen to allow future right-heart catheterization and endomyocardial biopsy, avoiding recurrence risk.
Implications:
- This case highlights a potential complication of cardiac transplantation.
- It emphasizes the need to consider the tricuspid valve's subvalvular apparatus.
- Discusses surgical choices for tricuspid valve replacement in this specific patient population.