Bioprosthetic

• Bovine pericardial or porcine heterograft (eg, Carpentier-Edwards), homograft
• Less durable, but min. thrombogenic; consider if >~65 y, lifespan <20 y, or Ø anticoag
• If 50–69 y, 2× reop but ½ bleeding or stroke vs. mech (JAMA 2014;312:1323 & 2015;313:1435)