How to teach Breast ERAS protocols: Surgical residents’ perspectives and perioperative practices for mastectomy patients.

11033 Background: Breast enhanced recovery after surgery (ERAS) protocols emphasize multimodal analgesia to decrease pain and expedite home recovery, but variability remains for same-day discharge and pain management. The purpose of this qualitative study is to examine how residents learn and apply breast surgery ERAS protocols, how they conceptualize pain management for breast surgery patients, and what influences their decision to discharge a patient home on the day of surgery. Methods: A semi-structured interview guide was adapted from existing instruments in the pain management qualitative literature. Surgical residents who rotated on the breast surgery service within the previous 12 months were interviewed by a single researcher. Interviews were recorded, transcribed, de-identified, and independently inductively coded by two researchers. A codebook was developed and refined using the constant comparative method until interrater reliability (Cohen’s kappa) reached greater than 0.9. Codes were grouped into coding categories and explored for thematic analysis. Results: Twelve interviews were completed with plastic and general surgery residents. Participants spanned post-graduate years 1-4. Preferred discharge narcotic regimens for mastectomy patients ranged from 5-30 tablets of 5mg oxycodone and participants rarely reported the same quantity. Ultimately, 365 primary codes were collapsed into 26 parent codes, with a Cohen’s kappa of 0.93. Six emerging themes were identified. Three themes describe how participants learned through a mixture of templated care, formal education, and informal experiential learning. Two themes delineate how residents would teach breast surgery ERAS protocols: by emphasizing buy-in and by connecting the impetus behind ERAS with the implementation in daily workflow. One theme illustrates the patient-centered culture and how that impacts postoperative management and same-day discharges. Conclusions: Residents learn breast surgery ERAS and postoperative pain management from imitating their seniors, observing patient encounters, completing templated orders, and translating concepts from other ERAS services, more so than from a formal lecture. When implementing new same-day discharge protocols for mastectomy patients, it is important to consider how informal learning and local culture influence postoperative pain management and discharge rates.