heart valve prosthesis
heart valve pros·the·sis
replacement of a cardiac valve removed for disease by either a mechanical or a biologically derived artificial valve.
Farlex Partner Medical Dictionary © Farlex 2012
heart valve prosthesisHeart surgery A natural–eg, porcine or synthetic valve used to replace a damaged–stenosed or 'insufficient' cardiac valve; ±50,000 are performed/yr–US. See Shiley valve.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.