Limitations
Several limitations of our study should be recognized. Firstly, this study was its descriptive nature, using a relatively small cohort of patients at a single institution. Secondly, blood flow parameters measured by TTFM and early prior to discharge graft patency do not reflect the all of the advantages of the effect of the grafting strategy; in addition, major cardiovascular and cerebrovascular adverse events, revascularization events and the long-term graft patency can reflect the advantage of grafting strategy to the LAD. These other indicators were not included in this study.