Table I.

The patency of the grafts

Parameter	1st year (%)	5th–7th year (%)	≥ 10 years (%)
Saphenous vein	81–97.9	75‒86	50‒60
Internal mammary artery	93‒96	88‒98	85‒95
Radial artery	89‒92	90‒98	89‒91
Right gastroepiploic artery	92–97	80–90	62