Twenty-two year experience with the omniscience prosthetic heart valve

Area of Science:

• Cardiovascular Surgery
• Biomaterials Science
• Clinical Outcomes Research

Background:

• Mechanical heart valves are crucial for treating valvular heart disease.
• Long-term data on specific valve prostheses are essential for clinical decision-making.
• The Omniscience tilting disc valve is a prosthetic device used in cardiac surgery.

Purpose of the Study:

• To evaluate the long-term clinical performance and safety of the Omniscience tilting disc valve.
• To assess survival rates and complication incidence following implantation of this prosthesis.
• To determine the functional status of patients post-Omniscience valve replacement.

Main Methods:

• A retrospective study of 51 patients who received Omniscience valves (aortic, mitral, or both).
• Patients received oral warfarin potassium and dipyridamole for anticoagulation.
• Clinical outcomes, including mortality, thromboembolism, hemorrhage, and valve dysfunction, were tracked over time.

Main Results:

• Overall survival at 10, 15, and 20 years was 77%, 62%, and 46%, respectively.
• Low rates of thromboembolic (0.8%/patient-year) and hemorrhagic (0.8%/patient-year) complications were observed.
• Nonstructural valve dysfunction occurred at 0.6%/patient-year, with sudden death at 0.3%/patient-year.

Conclusions:

• The Omniscience tilting disc valve demonstrates excellent long-term clinical results.
• The prosthesis is associated with favorable survival and low rates of major valve-related complications.
• Patients experienced significant improvement in New York Heart Association functional class post-operation.