Italian surgeons find world's oldest artificial heart valve implanted by Chris Barnard 50 years ago: Surgeons in Italy have made a rare discovery while operating on a 60-year-old woman - an artificial mitral valve that is almost 50 years old, and still working perfectly, that was implanted by heart pioneer Chris Barnard. ...... Source: WN.com - Southafrica News Second … [Read more...] about Italian surgeons find world’s oldest artificial heart valve implanted by Chris Barnard 50 years ago