The preoperative cardiac status of the two groups was not entirely identical, especially the site of MI. Hence, and that???s why we found the use of IABP and CPB time in the patch group were significantly more than those in linear group (34.3% versus 23.1%, p <0.05; 108.3????????28.7 minutes versus 89.5????????25.6 minutes, p <0.05; respectively).