Study limitation
The main limitation of this paper is related on its retrospective design analysis on a single-operator outcome. The main bias is the analysis of pre-operatively judged low neurological risk patients, thus our conclusion could not be applicable to other subset of CABG patients. Moreover, the small sample size of patients who were able to perform a follow up is another limitation. Finally, a last bias of our study is the assessment of the single surgeon conducted on the aorta of the patients that led him to choose between SAC and DAC.