(1117) Implementation of a Microlearning, Spaced Repetition Platform in Pediatric Critical Care Didactics

Introduction: QStream, an online microlearning platform utilizing spaced repetition systems, was evaluated in a pilot study at our institution to determine its impact on knowledge retention and user satisfaction among pediatric critical care fellows. Previous research has demonstrated increased learner satisfaction with spaced repetition education systems in various graduate medical education programs, though limited data exists regarding its application in Pediatric Critical Care Medicine (PCCM) fellowship programs. We hypothesized that a spaced repetition microlearning online platform such as QStream is feasible in a pediatric critical care fellowship and can improve learner satisfaction.

Methods: Custom profiles were created for each participating fellow on the QStream platform. Using an interactive scheduling template, review questions were mapped to the didactic lectures. Review questions were developed based on the American Board of Pediatrics Critical Care Medicine content outline; a custom prompt was inputted within a large language model (LLM) to enhance a homogenous question structure. Participants were assigned questions through the QStream application. Incorrect answers were resent until correct, and periodic surveys assessed learner satisfaction while tracking response accuracy.

Results: Monthly didactic lectures were structured around ten organ systems in accordance with the Pediatric Critical Care Medicine content outline. Each organ system had a median of 6.5 lectures (Interquartile range 5-8). From each session, a mean of two LLM-generated review questions (range:1-3) were developed. Utilizing the QStream platform, these questions were delivered with a spaced repetition algorithm, generating a review question interval median of 2 days.

Conclusions: In our single center pilot study, the QStream microlearning platform, utilizing spaced repetition, was feasibly added to our PCCM fellowship curriculum and improved learner satisfaction among PCCM fellows. Future research should center on faculty perspectives, enhancing knowledge for practice, and integration into a national PCCM fellowship curriculum.