Aortic valve replacement with Starr-Edwards valves over 14 years

Area of Science:

• Cardiovascular Surgery
• Biomaterials Science
• Clinical Outcomes Research

Background:

• Aortic valve replacement is a critical procedure for severe aortic valve disease.
• Starr-Edwards caged-ball prostheses have been utilized historically for aortic valve replacement.
• Long-term outcomes and complication rates of these prostheses require ongoing evaluation.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of Starr-Edwards caged-ball prostheses in patients undergoing aortic valve replacement.
• To compare complication rates and survival outcomes with historical data or alternative valve types.

Main Methods:

• Retrospective analysis of 313 patients who received 319 Starr-Edwards caged-ball prostheses.
• Follow-up duration ranged from 1 to 14 years.
• Assessment of mortality, thromboembolism, hemolysis, and other complications.

Main Results:

• High hospital (24.8%) and first-year (4.8%) mortality rates indicate a high-risk patient cohort.
• 14-year overall survival was 37.1%, with 18.8% event-free survival.
• Significant rates of thromboembolism (18.7%) and hemolysis (nearly 80% by 13 years) were observed.
• Earlier valve replacements (pre-1973) showed higher late death and complication probabilities, while later replacements had increased thromboembolic episodes.

Conclusions:

• Starr-Edwards caged-ball prostheses may be acceptable for high-risk patients but present substantial long-term risks.
• The overall complication rate (81.2% at 14 years) is high compared to homograft valves.
• These findings do not support the routine adoption of Starr-Edwards caged-ball prostheses as the primary valve choice.