New 2023 Classification Criteria for Antiphospholipid Syndrome (APS)

This chapter discusses the introduction of the new 2023 ACR-ULAR classification criteria for Antiphospholipid Syndrome (APS) and the limitations of the old Sapporo criteria. It emphasizes the distinction between diagnostic and classification criteria and the need for a more updated and comprehensive system in order to capture key disease features for research purposes.