Evolution of mechanical heart valves.

  title={Evolution of mechanical heart valves.},
  author={RICHARD A. DeWALL and Nadia Qasim and Leo Carr},
  journal={The Annals of thoracic surgery},
  volume={69 5},
The need for prosthetic heart valves was long recognized but seemed an impossible dream before 1952 when Dr Charles Hufnagel clinically introduced a ball valve that he placed into the descending thoracic aorta for treatment of aortic valvular insufficiency. Fulfillment of that dream became a reality with the advent of extracorporeal circulation in the early 1950s. Development of prosthetic heart valves involved the search for biologically compatible materials and hemologically tolerant designs… CONTINUE READING
Recent Discussions
This paper has been referenced on Twitter 1 time over the past 90 days. VIEW TWEETS