Approximately 20% of youth undergoing major surgery develop chronic post-surgical pain (CPSP) and a small proportion continue to use opioids months after surgery. Psychosocial factors play a role in the in the prediction of CPSP and therefore psychological interventions are essential for the management of acute and CPSP and distress. Psychological interventions (e.g., acceptance and commitment therapy) delivered to adult patients undergoing surgery are efficacious in the prevention and treatment of perioperative pain. Dr. Rosenbloom will review the results from an updated systematic review and meta-analysis of randomized controlled trials evaluating the effectiveness of psychological interventions (e.g., cognitive-behavioural strategies, hypnosis, education) for pediatric perioperative pain (PROSPERO: CRD42022379094). A total of 3,722 abstracts were screened and 32 articles were included. Further, she will discuss the results of a patient partnered qualitative study on the involvement of psychology in perioperative pain care. Youth (n=4), families (n=7), and healthcare providers (n=7) were interviewed on their experiences with pain and mental health concerns perioperatively. Participants identified challenges with finding: preoperative education or resources; and specialized mental health care providers who can work with the youth throughout their surgical journey. Findings indicate key factors for the development of perioperative psychological interventions.