Mechanical decalcification of the aortic valve

Area of Science:

• Cardiology
• Cardiac Surgery
• Valvular Heart Disease

Background:

• Prosthetic aortic valve replacement carries significant risks of thromboembolism and anticoagulant-related complications.
• Aortic valve decalcification was explored as an alternative procedure.
• The study aimed to assess the long-term viability and outcomes of aortic valve decalcification.

Purpose of the Study:

• To evaluate the effectiveness and long-term outcomes of aortic valve decalcification.
• To compare outcomes based on the etiology of aortic valve calcification (rheumatic vs. bicuspid).
• To assess survival rates and functional status after decalcification.

Main Methods:

• Retrospective review of 84 patients who underwent aortic valve decalcification between 1959 and 1978.
• Analysis of patient demographics, valve etiology, procedural outcomes, reoperation rates, survival, and functional class.
• Follow-up data collected for up to 22 years.

Main Results:

• Thirty-day mortality was 13%.
• Freedom from reoperation at 15 years was 26% for rheumatic valves and 51% for bicuspid valves.
• Long-term survival varied, with better outcomes observed in patients with bicuspid valves compared to rheumatic valves.
• 61% of patients achieved New York Heart Association Functional Class I or II at follow-up.

Conclusions:

• Aortic valve decalcification can be a viable option, particularly for patients with rheumatic or bicuspid valves.
• The procedure can lead to acceptable long-term survival and improved functional capacity.
• Careful patient selection is crucial for optimizing outcomes after aortic valve decalcification.