The David and Yacoub Procedures are procedures that allow the aortic root to be repaired and the original valve to be reused in its normal position. They were developed to repair aortic root dilation or aneurysm, and may involve a three-leafed valve or a bicuspid one.
Neither of these procedures addresses BAV repair, which involves reshaping the valve's cusps and ensuring a tight, non-regurgitant (non-leaking) closure, bringing it back to its original status as a competent, but still bicuspid valve. Between 20% and 50% of repaired bicuspid valves (depending on which site you are visiting) have to be replaced within ten years, occasionally within days or months, if the repair is a failure out of the gate.
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