Fig. 1

Personalized arterial blood pressure (ABP) management potentially reduces the risk of heart failure (HF) following off-pump coronary artery bypass grafting (CABG). Clinicians in the operating room may face uncertainty regarding the optimal target ABP level to reduce postoperative complications. This research involved monitoring ABP and brain oxygen saturation concurrently in a group of patients undergoing off-pump CABG surgery. Through assessment of continuous cerebral autoregulation, three specifics targets, namely lower limit of autoregulation (LLA), upper limit of autoregulation (ULA), and optimal mean arterial pressure (MAPopt), were identified. The findings indicated a significant association between HF and the degree of ABP falling below the optimal range. COx cerebral oxygen saturation index, AUC area under the curve