Conclusion
The systematic literature review and survey presented herein aimed to improve our understanding of pediatric rITP definition and response to treatments. We identified a paucity of studies reporting on rITP definition with no consensus, corroborated by survey results demonstrating an ongoing lack of consensus amongst experts. Leaders in ITP research must agree on a standardized definition of rITP to ensure reliability and generalizability of future research. Of note, prior splenectomy should not be included for the pediatric rITP definition for reasons explored above. Using a standardized definition will then facilitate future research in the development of evidence-based treatment guidelines for pediatric rITP.