6、up.IntheroutineONBEATCABGgroup,thenumberofgraftswas(3.28±0.62),thetimeofECCwas(92.34±28.62)min,andnoseverecomplicationshappened.Thenumberofgraftsoftheemergentswitchgroupwas(2.07±0.81),andthetimeofECCwas(150.53±64.31)min.Meanwhile,intra-aorticballoonpumpwasusedin2casesduring opera