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Background: Minimally-invasive direct coronary artery bypass (MIDCAB) has been introduced as a less-invasive alternative to full sternotomy off pump coronary artery bypass (FS-OPCAB) revascularization of the left anterior descending artery (LAD). Data comparing MIDCAB to FS-OPCAB especially in regard to long-term follow-up is scarce. We compared short-and long-term results of MIDCAB versus FS-OPCAB revascularization over a maximum follow-up period of 10 years.

Methods: From December 2009 to June 2020, a total of 388 elective patients were included in our retrospective study. 229 underwent MIDCAB, and 159 underwent off-pump LIMA-to-LAD myocardial revascularization via median sternotomy. Inverse propensity score weighting (IPTW) was used to adjust for selection bias and to estimate treatment effects on short-and long-term outcomes. IPTW-adjusted Kaplan–Meier estimates by study group …