Mid-point Transverse Process to Pleura Block for Breast Cancer Surgery: A Randomized Controlled Trial

Inclusion Criteria: * English or French Speaking * Scheduled for major breast surgery * ASA physical status classification I-III * BMI \<30kg/m2 Exclusion Criteria: * Prior ipsilateral breast surgery * Pre-existing neurological deficit or peripheral neuropathy involving the ipsilateral chest * Contraindications to regional anesthesia * Patient refusal of regional technique * Chronic pain disorder * Chronic opioid use * Inability to provide informed consent