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Intraoperative Bioprosthetic Valve Dysfunction Causing Severe Mitral Regurgitation
Philip Y K Pang1, Susan Garwood2, Sabet W Hashim3
1Section of Cardiac Surgery, Yale University School of Medicine, New Haven, Connecticut; Department of Cardiothoracic Surgery, National Heart Centre, Singapore.
The Annals of Thoracic Surgery
|April 1, 2017
Summary
Acute bioprosthetic mitral valve dysfunction is rare. This report details two cases of sudden failure in newly implanted Perimount Theon valves, diagnosed intraoperatively using transesophageal echocardiography (TEE).
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Medical Devices
Background:
- Bioprosthetic valve degeneration is typically a gradual process.
- Immediate post-implantation failure of bioprosthetic valves is exceptionally uncommon.
- Potential causes include leaflet obstruction by subvalvular tissue or suture loop entrapment.