Long-term survival rates for different graft types over time in matched groups

Survival rates1 year5 years10 years15 years17 years20 years
Biological CVG84% (74.3–89.8)81% (70.8–87.6)72% (57.8–81.9)---
Homograft92% (79.7–96.9)81% (65.1–90.3)70% (48.1–83.9)---
Mechanical CVG91% (83.6–94.7)89% (81.7–93.8)86% (76.2–91.5)---
Xenograft95% (90.3–97.5)93% (87.5–96.0)90% (82.6–94.3)---

CVG: composite valve graft