Lupus
Clinical characteristics of patients with primary antiphospholipid syndrome and “single” antiphospholipid antibody: Retrospective results from the APS ACTION clinical database and repository (“registry”)
Objective While triple antiphospholipid antibody (aPL) positivity is associated with a higher risk of thrombosis, the clinical significance of single aPL positivity remains unclear. This study aimed to assess the prevalence, clinical characteristics, and cardiovascular disease (CVD) risk profile of persistently single aPL-positive primary antiphospholipid syndrome (PAPS) patients. Methods We conducted a retrospective analysis for APS patients from the APS ACTION registry with confirmed persistent single aPL positiv …