Superficial Parasternal Intercostal Plane Block in Cardiac Surgery Trial

Inclusion Criteria: * Adult patients undergoing cardiac surgery via median sternotomy Exclusion Criteria: * Redo sternotomy, or cardiac surgery performed through non-sternotomy approaches (minimally invasive procedures, thoracotomies, mini-sternotomy, hemi-sternotomy, etc.) * Emergency procedures (surgery within 2 hours) * Clinical instability which in the judgement of the investigator precludes enrollment or participation in the study * Weight \< 50kg * Active systemic bacterial infection including infective endocarditis or pre-existing sternal infections * Surgery for infective endocarditis * Pregnancy or nursing * Chronic opioid/narcotic use \> 6 weeks, active use of illicit drugs, long-term opioid exposure or chronic pain disorder/syndromes * Allergies to amide anesthetic agents or any components of study interventions * Inability to comply with, or participate in, protocol (i.e. cognitive impairment/altered mental status/neurological deficit or disorder, inability to provide informed consent, inability to complete pain rating scales, etc.) * Receipt of an investigational drug or device within past 7 days