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, U.S. researchers ...

A study reveals that middle-aged adults fare better with mechanical aortic valves compared to animal tissue-based valves. The research, presented at the Society for Thoracic Surgery annual meeting, ...

These latest data reinforce years of smaller studies, but whether they should change practice is a matter of debate.