aortic valve reimplantation
A valve-sparing procedure where the native aortic valve is excised with a rim of surrounding tissue and reimplanted into a prosthetic aortic root. Preserves native valve function while replacing diseased root.
Full Definition
Aortic valve reimplantation, also known as the David procedure, is a complex valve-sparing operation that involves removing the patient's aortic valve as a complete unit with a small cuff of surrounding tissue and reimplanting it into a prosthetic graft. This technique is used when the aortic root is diseased but the valve leaflets remain structurally normal. The procedure requires meticulous attention to valve geometry and commissural alignment to ensure proper function. It offers the advantage of preserving the native valve while eliminating the risks associated with prosthetic valve replacement, including the need for anticoagulation and valve degeneration.
Usage
Usage note: Often referred to by the eponym 'David procedure' but the descriptive term is preferred in formal documentation.
In Context
- "Aortic valve reimplantation was successfully performed using a 28mm Dacron graft." — Operative summary
- "The patient's young age made valve reimplantation preferable to prosthetic replacement." — Surgical consultation note