Morbidity and mortality in primary versus secondary antiphospholipid syndrome: A single-center study using the 2023 ACR/EULAR criteria

Roni Meidan, Monica Angerri Nadal, Blanca Viejo Sosa, Uxia Couto Lareo, Prabal Mittal, Hannah Cohen, David Isenberg, Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Gray Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Servei Medicina Interna, Hospital Universitario Dr Joseph Trueta, Servicio de Reumatologia, Hospital Universitario Jerez de la Frontera, Servizo de Reumatoloxia, Complexo Hospitalario Universitario A Coruna, A Coruna, Department of Hematology, The Royal Free Hospital NHS Foundation Trust, Department of Hematology, University College London Hospitals NHS Foundation Trust, Department of Ageing, Rheumatology and Regenerative Medicine, Division of Medicine, University College London

Lupus: An International Journal

Published online on May 06, 2026

Abstract

Lupus, Volume 35, Issue 9, Page 918-926, August 2026.
ObjectiveTo evaluate differences in morbidity and mortality between patients with primary antiphospholipid syndrome (PAPS) and APS secondary to systemic lupus erythematosus (SAPS), classified according to the 2023 ACR/EULAR APS criteria.MethodsA single-...