Inclusion Criteria:  adult patients presenting to the Mazankowski Heart Institute for operations via full midline sternotomy, i.e.: coronary artery bypass grafting, and/or single valve repair or single valve replacement who are expected to be fast track candidates post-operatively. patients scheduled for cardiac bypass grafting and/or single valve surgery requiring cardiopulmonary bypass.  Exclusion Criteria:  Unstable or fluctuating cardiac condition (acute MI, HF, tamponade, type A dissection, ongoing refractory arrhythmia, LVEF <40%, massive transfusion protocol, reinstitution of CPB or other mechanical support) Alternative surgical approach (e.g. thoracotomy, mini sternotomy) Repeat sternotomy or emergency surgery Pregnancy or lactation Age <18 Chronic pain Tolerance to opioids Active alcohol misuse disorder, IVDU or cannabis use >1g/d Allergy to local anesthetics Inability to provide informed consent High doses of steroids pre-operatively (>10 mg prednisone/day)