Study population:
Data for isolated CABG were retrospectively collected from October 1,
2017 to October 31, 2019, from the Peking University People’s Hospital
database. There were 629 patients who underwent CABGs; we excluded 10
who underwent redo surgeries, 55 who underwent concomitant additional
procedures, 134 who underwent on-pump CABGs and 20 without
intro-operative TTFM data. We also excluded 34 patients who has received
the RIMA for LAD revascularization. Finally, we all included 374
patients who undergoing isolated primary OPCAB with intro-operative TTFM
data. According to the strategy of
the LAD revascularization, 374 patients were assigned to three groups: a
LIMA group(n=332), and a great saphenous vein (SVG) group (n=42). This
study was approved by our institutional Review Board /Ethics Committee.
Consent for individual use of data was waived because of the nature of
the study and previous approval for the use of such data at the time of
operative consent.