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Long-term experience with the omniscience cardiac valve
1Division of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Centre Universitaire de Sante de l'Estrie, Sherbrooke, Quebec, Canada.
The Journal of Heart Valve Disease
|October 30, 1998
Summary
The Omniscience valve shows good long-term clinical performance, with low complication rates and excellent functional improvement in patients undergoing aortic and mitral valve replacement. This study confirms its satisfactory safety and efficacy in cardiac surgery.
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Clinical Outcomes Research
Background:
- Evaluating the long-term safety and efficacy of the Omniscience valve prosthesis.
- Assessing mortality and morbidity rates in patients with the Omniscience valve.
Purpose of the Study:
- To report complication rates from a prospective, long-term follow-up study of the Omniscience valve.
- To evaluate the clinical performance of the Omniscience valve in aortic and mitral positions.
Main Methods:
- Prospective follow-up of 200 patients receiving the Omniscience heart valve.
- Data collected over 13 years with 99.5% follow-up completeness.
- Analysis of mortality, morbidity, and valve-related complications.
Main Results:
- 12-year survival probability: 67.1% (AVR) and 62.8% (MVR).
- No structural valve failures observed.
- 12-year freedom from thromboembolism: 85.5% (AVR) and 85.2% (MVR).
Conclusions:
- Omniscience valve demonstrates low risk of late complications, comparable to modern mechanical valves.
- Patients showed excellent hematology values and functional improvement.
- Satisfactory long-term clinical performance in aortic and mitral positions.
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