BACKGROUND: A perioperative acute pain care program integrating standardized assessment and treatment forms into pain care was developed and implemented at an urban hospital in Rwanda through a collaboration between Rwandan and Canadian experts. This study evaluated the perioperative acute pain care program using a quality improvement lens. METHODS: Using the Model for Improvement: Plan, Do, Study, Act (PDSA) cycle, a mixed methods evaluation was performed. Over one year, 519 randomized patient chart audits were conducted and analyzed through control charts. Through purposeful sampling, focus groups comprised ofsurgeons and nurses (N=34) involved in pain care in surgery, obstetrics, and anesthesiology were performed and analyzed via thematic coding. RESULTS: The average attempted form completion rate across all forms varied monthly between 56-93% (mean=79%; median=81%). Across all forms, both the mean and median total number of errors per form were 12.5. Enablers of form use included improved pain care for patients and feelings of professional satisfaction. Program implementation was challenged by resource constraints, form integration, and health care provider training. CONCLUSION: Future quality improvement collaborations should identify and address improved pain care while working with local experts to ensure PDSA cycles are continuous, and evidence based.