While narrowing of either the aortic or mitral valve typically requires valve replacement (with a manufactured “mechanical” valve, or with a tissue valve which typically comes from a cow or pig), ...

Transscatheter aortic valve replacement is a novel way to replace ... It is a trileaflet valve made from bovine pericardium in a stainless steel frame that is designed to be expanded by a balloon.

Surgery to replace an aortic valve is done for aortic valve stenosis and aortic valve regurgitation. During this surgery, the damaged valve is removed and replaced with an artificial valve. The valve ...

New 20-year data show a survival rate of 90% with few repeat surgeries after this complex operation that can only be ...

If aortic root replacement is required ... to the sewing ring of a commercially available stented porcine or bovine valve. More recently, 'off the shelf' stentless porcine aortic root prostheses ...

Any four valves can malfunction, although severe aortic stenosis is the most common indication for valve replacement ...

Jan 29 (Reuters) - Middle-aged adults who need an aortic valve replacement fare better with mechanical devices than with the valves made from animal tissues that they currently most often receive ...

Decline in mechanical valve use: Despite superior outcomes in younger populations, mechanical valve use decreased from 20% to 10% over the study's 12-year period. Survival advantage: Mechanical ...

A late-breaking study presented today at the 2025 Society of Thoracic Surgeons (STS) Annual Meeting reveals that mechanical aortic valve replacements (AVRs) provide significant long-term survival ...