Hemodynamic Management in Autologous Blood Collection for CABG Surgery

Inclusion Criteria: * Age at least 18 years * Undergoing isolated coronary artery bypass grafting surgery under general anesthesia * Invasive blood pressure (radial or femoral) and Mostcare monitoring * Recruitment after booking for surgery with sufficient time to read, understand and question study patient information prior to attending for surgery * Ability and willingness to provide informed consent Exclusion Criteria: * Refuse to consent to the study * Arterial wave form distortion * Cardiac arrhythmia * Inappropriate identification of the dicrotic notch for any reason * Hemodynamic instability defined as mean arterial blood pressure \< 65 mmHg * Preoperative requirement of inotrope/vasopressor infusion * Preoperatively receiving vasoactive drugs * Patients fitted with an intra-aortic balloon pump * Patients fitted with Extracorporeal Membrane Oxygenation * Critically ill patients requiring preoperative intensive care unit * Presence of intraabdominal hypertension * New York Heart Association Class 3-4 heart failure * Congestive heart failure with ejection fraction \< 35% * Glomerular filtration rate \< 30 ml/min/1.73 m2 * Ongoing renal replacement therapy