“…The frequency of PD in our study regarding MICS was greater than in previous reports regarding conventional cardiac surgery (34%-63%), although the definition of what threshold value to count as PD between femoral and radial artery pressure differed in those reports. 1,2,5,9,10 Moreover, the magnitude of PD in SAP was greater than that described in previous reports (average 13 (12-27) mm Hg). 1,2,5,9,10 Compared to CPB with antegrade perfusion via central aortic cannulation, CPB with retrograde perfusion via femoral cannulation has several disadvantages, such as distal limb ischemia of the cannulation side and cooling/warming starting from groin site.…”