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Background Antiphospholipid antibodies (aPL) have been associated with organ damage and certain features in SLE patients. Objectives Our aim was to investigate the differences between SLE patients according to the presence of aPL and/or clinical antiphospholipid syndrome. Methods Patients from the RELESSER-T registry were included. RELESSER-T is a multicenter, hospital-based registry, with retrospective cross-sectional collection of data from a large representative sample of adult non-selected patients with SLE attending Spanish rheumatology services from the public national health system. Results We included 3651 SLE patients and 1368 were positive for aPL (44.9% of patients were positive for anticardiolipin antibodies, 27.3% showed positivity for anti b2glycoprotein I and 24% for lupus anticoagulant). Overall 2283 patients were classified as SLE no aPL, 528 as SLE-APS and 840 as SLE-aPL. Demographic data, clinical and laboratory features in the different groups are showed in Table 1. Regarding cardiovascular risk factors, SLE-APS patients had higher rates of hypertension, dyslipidemia and diabetes than SLE-aPL and SLE no aPL patients (p 0.5 grs), urinary cell casts, seizures and psychosis (p≤0.001). Overall, SLE-APS patients showed a lower rate of cutaneous manifestations and higher rates of neuropsychiatric, cardiac, pulmonary, renal, joint and ophthalmological manifestations (Table 1). In accordance with a more severe clinical profile, higher frequency of anti-DNA antibodies and hypocomplementemia were observed in the SLE-APS group (p Conclusion SLE-APS patients show a more severe clinical profile with higher frequency of major organ involvement and more damage accrual than SLE-aPL and SLE no APL. Disclosure of Interests Leyre Riancho-Zarrabeitia Grant/research support from: Abbvie, Pfizer, UCB, MSD, GSK, Amgen, Roche travel grants, Victor Martinez Taboada: None declared, Inigo Rua-Figueroa: None declared, Fernando Sanchez-Alonso: None declared, Maria Galindo-Izquierdo: None declared, Juan Ovalles: None declared, Alejandro Olive Grant/research support from: ND, Consultant for: ND, Paid instructor for: ND, Speakers bureau: ND, Antonio Fernandez-Nebro: None declared, Jaime Calvo Consultant for: Bristol-Myers Squibb, Janssen, Celgene, Sanofi Genzyme, Speakers bureau: Bristol-Myers Squibb, Raul Menor Almagro: None declared, Eva Tomero Muriel: None declared, Esther Uriarte Isacelaya: None declared, Alina Boteanu: None declared, Mariano Andres: None declared, Mercedes Freire Gonzalez: None declared, Gregorio Santos Soler: None declared, Esther Ruiz Lucea: None declared, Monica Ibanez Barcelo: None declared, Ivan Castellvi Consultant for: I received fees less than 5000USD as a consultant for Kern and Actelion, Paid instructor for: I received fees less than 2000USD as a instructor for Boehringer -Ingelheim, Novartis and Gebro, Speakers bureau: ND, Carles Galisteo: None declared, Victor Quevedo Vila: None declared, Enrique Raya: None declared, J. Narvaez Consultant for: Bristol-Myers Squibb, Lorena Exposito: None declared, Jose A Hernandez Beriain: None declared, Loreto Horcada: None declared, Jose M Pego-Reigosa: None declared |
