Valve insufficiency or regurgitation happens more often in the mitral valve. When a valve leaks, the leaflets don’t close completely and some blood leaks backward rather than all of the blood flowing ...

There are scant data on long-term clinical outcomes and bioprosthetic-valve function after transcatheter aortic-valve replacement (TAVR) as compared with surgical aortic-valve replacement in patients ...

Ball valves are integral components in many industries, including oil and gas, chemical processing, agriculture, food and beverage equipment, mechanical engineering and automotive manufacturing. These ...

A previous analysis in this trial showed that among patients with severe, symptomatic aortic stenosis who were at low surgical risk, the rate of the composite end point of death, stroke, or ...