Abstracts tagged "antiphospholipid syndrome"

Abstract Number: 1262 • ACR Convergence 2020
Single LAC Positivity versus Double and Triple Positivity for Thrombosis in SLE
Selcan Demir¹, Jessica Li², Laurence Magder³ and Michelle Petri⁴, ¹Hacettepe University Faculty of Medicine, Ankara, Ankara, Turkey, ²Johns Hopkins University, Baltimore, MD, ³University of Maryland, Baltimore, Baltimore, MD, ⁴Johns Hopkins University School of Medicine, Timonium, MD
Background/Purpose:Antiphospholipid syndrome (APS) is classified as the development of venous and/or arterial thromboses, and pregnancy morbidity, in the presence of antiphospholipid antibodies (aPL); lupus anticoagulant,…
Abstract Number: 0519 • ACR Convergence 2020
Thrombotic and Obstetric Associations of Non-Criteria Antiphospholipid Immunoassays That Detect Antibodies to Neutral and Negatively-Charged Phospholipid
Rohan Willis¹, E Nigel Harris², Vijaya Murthy³, Zurina Romay-Penabad¹, Alvaro Schleh⁴, Monica Smikle², Karel De Ceulaer², Anne Tebo⁵, Troy Jaskowski⁶, Marta Guerra⁷, David Ware Branch⁸, Jane Salmon⁷, Michelle Petri⁹ and Emilio Gonzalez¹, ¹University of Texas Medical Branch, Galveston, TX, ²University of the West Indies, Kingston, Jamaica, ³University of Texas Medical Branch, League City, TX, ⁴Antiphospholipid Standardization Laboratory, GALVESTON, TX, ⁵Department of Pathology, University of Utah, Salt Lake City, ⁶ARUP Laboratories, Salt Lake City, UT, ⁷Hospital for Special Surgery, New York, NY, ⁸University of Utah, Salt Lake City, ⁹Johns Hopkins University School of Medicine, Baltimore
Background/Purpose: Criteria antiphospholipid (aPL) antibodies that identify antiphospholipid syndrome (APS) patients, anticardiolipin (aCL) and anti-β2glycoprotein-I (anti-β2GPI), have demonstrated inconsistent specificity and sensitivity in this regard…
Abstract Number: 1447 • ACR Convergence 2020
Vitamin D Deficiency Enhances Antiphospholipid Antibody-Mediated Thrombosis in a Passive Immunization Mouse Model
Rohan Willis¹, Karen Roye-Green², Zurina Romay-Penabad¹, Elizabeth Papalardo¹, Alvaro Schleh³, Vijaya Murthy⁴, Monica Smikle² and Emilio Gonzalez¹, ¹University of Texas Medical Branch, Galveston, TX, ²University of the West Indies, Kingston, Jamaica, ³Antiphospholipid Standardization Laboratory, GALVESTON, TX, ⁴University of Texas Medical Branch, League City, TX
Background/Purpose: Abnormal vitamin D levels occur frequently in antiphospholipid (APS) patients and are correlated with thrombosis. It remains unclear however if vitamin D deficiency observed…
Abstract Number: 0520 • ACR Convergence 2020
Antiphospholipid Antibodies and Thrombotic Events in COVID-19 Patients Hospitalized in Medicine Ward
Alexandre Le Joncour¹, Corinne Frere¹, Isabelle Martin-Toutain¹, Paul Gougis¹, Pascale Ghillani-Dalbin¹, Georgina Maalouf¹, Matheus Vieira¹, Anne-Genevieve Marcelin¹, Joe-Elie Salem¹, Yves Allenbach², David Saadoun³, Olivier Benveniste⁴ and Patrice Cacoub¹, ¹APHP, paris, France, ²Sorbonne Université, Paris, Ile-de-France, France, ³AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Department of Internal Medicine and Clinical Immunology, F-75013, Paris, France, Centre national de références Maladies Autoimmunes et systémiques rares et Maladies Autoinflammatoires rares, PAris, France, ⁴Sorbonne Université, paris, France
Background/Purpose: A high prevalence of thrombotic events has been reported in critically ill COVID-19 patients but data on the prevalence of thrombosis in ward patients…
Abstract Number: 1448 • ACR Convergence 2020
Single-cell RNA Sequencing of Livedo Reticularis Skin Reveals Endothelial Pathology in Antiphospholipid Syndrome
Hui Shi¹, Allison Billi¹, Rachael Wasikowski¹, Kelsey Gockman¹, Alex Tsoi¹, Johann Gudjonsson² and Jason Knight³, ¹University of Michigan, Ann Arbor, ²University of Michigan, Ann ArborUniversity of Michigan, ³Division of Rheumatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Antiphospholipid syndrome (APS) is a thromboinflammatory disease that can present with a variety of clinical phenotypes. Livedo reticularis is the most common skin manifestation…
Abstract Number: 0521 • ACR Convergence 2020
Avoiding Misclassification of Primary Antiphospholipid Syndrome as Systemic Lupus Erythematosus: What Are the Best-performing SLE Classification Criteria?
Flavio Signorelli¹, Gustavo Balbi², Eloisa Bonfa³, Eduardo Borba⁴ and Danieli Andrade⁵, ¹Universidade de São Paulo, Rio de janeiro, Rio de Janeiro, Brazil, ²Universidade de São Paulo, Juiz de Fora, Minas Gerais, Brazil, ³Hospital das Clínicas, Faculdade de Medicina da Universidade de Sao Paulo (HCFMUSP), Sao Paulo, Sao Paulo, Brazil, ⁴Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil, ⁵University of Sao Paulo, Sao Paulo, Brazil
Background/Purpose: Primary Antiphospholipid Syndrome (PAPS) patients, when submitted to Systemic Lupus Erythematosus (SLE) classification criteria, can be misclassified. The new 2019 ACR/EULAR classification criteria have…
Abstract Number: 1450 • ACR Convergence 2020
Integrative Analysis of DNA Methylation and Gene Expression in Monocytes from Primary Antiphospholipid Syndrome Patients Identifies a Gene Expression Signature Associated with Their Atherothrombotic Phenotype
Carlos Pérez-Sánchez¹, M Angeles Aguirre², Alejandra Maria Patiño-Trives¹, Laura Pérez-Sanchez³, Maria Luque-Tevar¹, Iván Arias de la Rosa¹, María-Carmen Abalos-Aguilera¹, Pedro Segui⁴, Javier Rodriguez-Ubreva⁵, Esteban Ballestar⁵, Nuria Barbarroja¹, Eduardo Collantes-Estévez² and Chary Lopez-Pedrera¹, ¹Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Cordoba, Spain, ²Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Córdoba, Spain, ³Hospital Universitario Reina Sofía, Córdoba, Spain, ⁴IMIBIC/University of Cordoba/Reina Sofia Hospital, Cordoba, ⁵Josep Carreras Institute (IJC), Badalona, Spain
Background/Purpose: 1. To develop integrated analyses of the genome-wide DNA methylation and gene expression profiles in monocytes from APS patients and assess their involvement in…
Abstract Number: 0522 • ACR Convergence 2020
Development of New International Classification Criteria for Antiphospholipid Syndrome: Phase III Case Collection Results
Medha Barbhaiya¹, Stephane Zuily², Yasaman Ahmadzadeh³, Karen Costenbader⁴, Raymond Naden⁵ and Doruk Erkan⁶, ¹Hospital for Special Surgery, Barbara Volcker Center for Women and Rheumatic Diseases, New York, NY, ²Nancy Academic Hospital, Vandoeuvre-l�Nancy, France, ³Hospital for Special Surgery, New York, ⁴Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁵Department of Medicine, Middlemore Hospital, Auckland, Auckland, New Zealand, ⁶Hospital for Special Surgery, New York, NY
Background/Purpose: An international multi-disciplinary effort is underway to develop rigorous, new, consensus- and evidence-based classification criteria for Antiphospholipid Syndrome (APS). The methodological approach includes four…
Abstract Number: 1451 • ACR Convergence 2020
Longitudinal Assessment of Anti-beta 2 Glycoprotein in SLE
Michelle Petri¹, Laurence Magder² and Daniel Goldman¹, ¹Johns Hopkins University School of Medicine, Timonium, MD, ²University of Maryland, Baltimore, Baltimore, MD
Background/Purpose: Although anti-beta2 glycoprotein is one of the three antiphospholipid antibodies recognized in the Sydney APS classification criteria, it is one of the least studied. …
Abstract Number: 0523 • ACR Convergence 2020
Characterization of Antiphospholipid Antibody-Associated Nephropathy: An International Survey of Renal Pathology Society Members
Medha Barbhaiya¹, Doruk Erkan², Stephane Zuily³, Tektonidou Maria⁴ and Surya Seshan⁵, ¹Hospital for Special Surgery, Barbara Volcker Center for Women and Rheumatic Diseases, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Nancy Academic Hospital, Vandoeuvre-l�Nancy, France, ⁴National and Kapodistrian University of Athens, Athens, Greece, ⁵Weill Cornell Medical College, New York, NY
Background/Purpose: Antiphospholipid antibody (aPL)-associated nephropathy (aPL-N) is recognized as a distinct complication of APS. However, it remains unclear whether pathologists worldwide use uniform diagnostic criteria…
Abstract Number: 1501 • ACR Convergence 2020
Obstetrical Outcome and Thromboses in a Multicentric Cohort of Antiphospholipid Syndrome (APS) Patients with Severe Preeclampsia: An Analysis of APS Classification Criteria
Maddalena Larosa¹, Nathalie Morel², Meriem Belhocine³, Amelia Ruffatti⁴, Nicolas Martin Silva⁵, Romain Paule⁶, Luc Mouthon⁷, Michel Dreyfus⁸, Jean-Charles Piette⁹, Odile Souchaud-Debouverie¹⁰, Catherine Deneux-Tharaux¹¹, Vassilis Tsatsaris¹², Emmanuelle Pannier Metzger¹³, Gaëlle Guettrot-Imbert¹⁴, Veronique Le Guern¹⁵, Andrea Doria¹⁶ and Nathalie Costedoat-Chalumeau¹⁷, ¹Rheumatology Unit-Department of Medicine-University of Padova, Italy, Padova, Veneto, Italy, ²AP-HP, université René-Descartes Paris V, hôpital Cochin, centre de référence maladies auto-immunes et systémiques rares, pôle médecine, service de médecine interne, Paris, France., Paris, Ile-de-France, France, ³Hôpital Sacré-Coeur de Montréal , Montréal, Montreal, QC, Canada, ⁴Department of Medicine, University of Padova, Padova, Veneto, Italy, ⁵Centre Hospitalier et Universitaire de Caen, Caen, France, ⁶Foch Hospital, Paris, France, ⁷Hopital Cochin - Paris University, Paris, France, ⁸CHU de Caen, Caen, France, ⁹Department of Internal Medicine, Hôpital Pitié-Salpêtrière, Paris, France, Paris, France, ¹⁰CENTRE HOSPITALIER UNIVERSITAIRE LA MILETRIE, poitiers, France, ¹¹INSERM U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Statistics Sorbonne Paris Cité , Paris Descartes University , Paris , France, Paris, France, ¹²Maternité Port-Royal,Hôpital Cochin, Paris, France, Paris, France, ¹³Maternité Port-Royal,Hôpital Cochin, Paris, France, ¹⁴Médecine Interne,Hôpital Cochin, paris, France, ¹⁵Médecine Interne,Hôpital Cochin, Paris, France, Paris, France, ¹⁶University of Padua, Padua, Italy, ¹⁷APHP, Université de Paris, Paris, France
Background/Purpose: According to APS classification criteria1, clinical manifestations of antiphospholipid syndrome (APS) consist in thrombotic and obstetric events, including severe preeclampsia (PE). Because little is…
Abstract Number: 0524 • ACR Convergence 2020
Determination of Homogenous Subgroups of Antiphospholipid Syndrome: A Cluster Analysis Based on 509 Cases
Yann Nguyen¹, Cécile Yelnik², Nathalie Morel³, Romain Paule⁴, Pierre-Yves Hatron², Romain Stammler⁵, Léo Plaçais³, Jean-Charles Piette⁶, Luc Mouthon⁷, Eric Hachulla⁸, Marc Lambert², Le Guern Véronique³ and Nathalie Costedoat-Chalumeau⁹, ¹1Department of Internal Medicine, Hôpital Beaujon, APHP Nord, Université de Paris, Clichy, Clichy, France, ²Department of Internal Medicine and Clinical Immunology, National Referral Centre for rare Systemic Auto-immune Diseases North and North-West of France (CeRAINO), CHU Lille, Hôpital Claude Huriez, Lille, France, Lille, France, ³National Referral Centre for Rare Autoimmune and Systemic Diseases, Department of Internal Medicine, Hôpital Cochin, AP-HP Centre, Université de Paris, Paris, France, Paris, France, ⁴Department of Internal Medicine, Hôpital Foch, Suresnes, France, Suresnes, France, ⁵National Referral Centre for Rare Autoimmune and Systemic Diseases, Department of Internal Medicine, Hôpital Cochin, AP-HP Centre, Université de Paris, Paris, France, Paris, ⁶Department of Internal Medicine, Hôpital Pitié-Salpêtrière, Paris, France, Paris, France, ⁷National Referral Center for Rare Systemic Autoimmune Diseases, Cochin Hospital, Paris-Descartes University, Paris, France, ⁸Department of Internal Medicine and Clinical Immunology, Université de Lille, Lille, France, Lille, France, ⁹APHP, Université de Paris, Paris, France
Background/Purpose: Antiphospholipid syndrome (APS) is a heterogeneous disease, with different phenotypes which may widely vary from classical thrombotic or obstetrical manifestations to catastrophic antiphospholipid syndrome…
Abstract Number: 1680 • ACR Convergence 2020
Lupus Anticoagulant as a Predictor of Adverse Outcomes in Children with Venous Thromboembolism
Elizabeth Sloan¹ and Ayesha Zia¹, ¹UT Southwestern Medical Center, Dallas, TX
Background/Purpose: The presence of antiphospholipid antibodies, including lupus anticoagulant (LA), is a risk factor for development of venous thromboembolism (VTE) in children. The impact of…
Abstract Number: 0525 • ACR Convergence 2020
Epidemiology of Thromboembolic Complications Among Hospitalized Patients with Antiphospholipid Syndrome in the United States
Lauren Mathias¹, Aditya Mantha², Kristen Mathias³ and Glenn Ehresmann¹, ¹University of Southern California, Division of Rheumatology, Los Angeles, CA, ²University of Southern California, Department of Medicine, Los Angeles, CA, ³University of Chicago, Department of Medicine, Chicago, IL
Background/Purpose: Antiphospholipid syndrome (APLS) is characterized by arterial and venous thrombosis, often in the setting of an underlying systemic disease. Few studies have described the…
Abstract Number: 1775 • ACR Convergence 2020
Risk Factors for Adverse Pregnancy Outcomes of Women with Positive for Antiphospholipid Antibodies Treated with Conventional Therapies
Hiromi Shimada¹, Risa Wakiya², Mai Mahmound Fahmy Mansour¹, Shusaku Nakashima¹, Mikiya Kato¹, Koichi Sugihara¹, Yusuke Ushio¹, Tomohiro Kameda¹ and Hiroaki Dobashi³, ¹Department of Internal Medicine, Division of Haematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University., Kita-gun, Kagawa, Japan, ²Department of Internal Medicine, Division of Haematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University., Kagawa, Kagawa, Japan, ³Department of Internal Medicine, Division of Haematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
Background/Purpose: Antiphospholipid antibodies induce several obstetric complications including recurrent spontaneous abortion, preterm birth, intrauterine fetal death. EULAR recommendations for antiphospholipid syndrome (APS) indicates low dose…

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