1
|
Abstract
PURPOSE OF REVIEW The purpose of this report is to review recent research findings on APS in children and neonates. RECENT FINDINGS European evidence-based recommendations for diagnosis and treatment of pediatric APS has recently been published by the SHARE Initiative. Recent studies have shown a high prevalence of non-thrombotic manifestations in children with aPL, domains 4/5 specificity of 'innocent' anti-β2GPI antibodies in infants, and a higher risk for developmental delays and learning disabilities, hence, the need for neurodevelopmental monitoring in children born to mothers with APS. An International effort on creating a new diagnostic criteria for APS is underway. Pediatric APS is a rare disease with significant differences from the APS in adults. Majority of the children with persistently positive aPL do not develop thrombotic events; however, relatively higher proportion of thrombosis in children is related to aPL positivity compared to adults; this may partly be due to the absence of common pro-thrombotic "second-hit" risk factors of adults such as atherosclerosis and cigarette smoking. Diagnosis of APS in children may be delayed or missed when adult APS criteria are used, because in pediatric APS, non-thrombotic clinical manifestations such as thrombocytopenia, hemolytic anemia, and neurological disorders such as migraine, epilepsy, and chorea may precede thrombotic manifestations. Around 20% of the children initially diagnosed with primary APS eventually develop SLE. Neonatal APS is rare; however, the offspring of mothers with APS are at a higher risk for developmental delays and learning disabilities; prematurity and IUGR may increase this risk. Regular assessment of neurodevelopmental status of these children should be performed. Thrombosis is a rare event in the offspring of mothers with APS; anticoagulation of such infants is not recommended. An international effort to create a new diagnostic criteria for APS is underway.
Collapse
Affiliation(s)
- Arzu Soybilgic
- Pediatric Rheumatology, Children's Hospital of University of Illinois, 840 S. Wood St, 1206 CSB, Chicago, 60612, USA.
| | - Tadej Avcin
- Department of Allergology, Rheumatology and Clinical Immunology, Children's Hospital, University Medical Center, Faculty of Medicine, University of Ljubljana, Bohoriceva 20, 1525, Ljubljana, Slovenia
| |
Collapse
|
2
|
Wincup C, Ioannou Y. The Differences Between Childhood and Adult Onset Antiphospholipid Syndrome. Front Pediatr 2018; 6:362. [PMID: 30542645 PMCID: PMC6277799 DOI: 10.3389/fped.2018.00362] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/08/2018] [Indexed: 12/12/2022] Open
Abstract
Antiphospholipid syndrome (APS) is a rare autoimmune disease of unknown etiology that represents a leading cause of acquired thromboembolism and recurrent miscarriage. It is characterized by the persistent elevated presence of pathogenic antiphospholipid auto-antibodies directed against cardiolipin, ß2-glycoprotein-I, and/or a positive lupus anticoagulant test. As with many autoimmune disorders, the pathogenesis of APS is believed to be the result of a complex interaction between environmental triggers and genetic predisposition. Although more common in adults, APS occasionally manifests in the neonatal period and throughout childhood. Adut-onset APS classification criteria are poorly validated to the pediatric population (in which pregnancy related complications are seldom seen) and as a result, assessment of the prevalence of the disease in childhood is difficult. Thromboembolic events seen in children include deep venous thrombosis in addition to stroke and pulmonary embolism, which can lead to significant long-term disability. The disease can be classified as either primary (when occurring in isolation) or secondary, in which the disease is diagnosed in the context of another underlying disease, most commonly systemic lupus erythematosus. A variety of laboratory and clinical difference are seen between pediatric and adult-onset APS. The marked female predominance seen in adult-onset disease is less evident in childhood where the gender split is more evenly spread. In addition, children with APS are at a higher risk of recurrent thromboembolism than adults. The treatment of childhood-onset APS is challenging due to a lack of large-scale prospective studies in the pediatric population. Therapeutic options are often based upon treatment guidelines that have been based upon literature from the adult-onset form of the disease. In the majority of cases, treatment is focused on the prevention of further thrombosis through treatment with long-term anti-coagulation therapy. The evidence for the use of antiplatelet agents (such as aspirin) and hydroxychloroquine is inconclusive. It is important to remember that anti-coagulation can have significant lifestyle implications for the child with APS and it is essential to consider potential implications relating to school and recreational activities, with contact sports often discouraged due to the increased risk of bleeding.
Collapse
Affiliation(s)
- Chris Wincup
- Department of Rheumatology, University College London, London, United Kingdom.,Arthritis Research UK Centre for Adolescent Rheumatology, University College London, London, United Kingdom
| | - Yiannis Ioannou
- Department of Rheumatology, University College London, London, United Kingdom.,Arthritis Research UK Centre for Adolescent Rheumatology, University College London, London, United Kingdom
| |
Collapse
|
3
|
Meroni PL, Argolini LM, Pontikaki I. What is known about pediatric antiphospholipid syndrome? Expert Rev Hematol 2017; 9:977-85. [PMID: 27615277 DOI: 10.1080/17474086.2016.1235969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized by vascular thrombosis and/or pregnancy morbidity associated with the persistent presence of antiphospholipid antibodies (aPL) including lupus anticoagulant (LA), anticardiolipin antibodies (aCL), and anti-β2 glycoprotein I antibodies (aβ2GPI). AREAS COVERED APS is considered as the most common acquired hypercoagulation state of autoimmune origin in children. Unfortunately, data about incidence, prevalence, thrombosis risk and effective treatment in paediatric APS are limited and unmethodical. Expert commentary: This review summarizes recent clinical, laboratory and therapy characterization of paediatric APS and emphasizes the differences between paediatric and adult populations.
Collapse
Affiliation(s)
- Pier Luigi Meroni
- a Rheumatology , Gaetano Pini Institute, Center of Pediatric Rheumatology, Chair of Rheumatology, University of Milan , Milan , Italy.,b Experimental Laboratory of Immunorheumatology , IRCCS Istituto Auxologico Italiano , Cusano Milanino , Italy.,c Department of Clinical Sciences and Community Health , University of Milan , Milan , Italy
| | - Lorenza Maria Argolini
- a Rheumatology , Gaetano Pini Institute, Center of Pediatric Rheumatology, Chair of Rheumatology, University of Milan , Milan , Italy
| | - Irene Pontikaki
- a Rheumatology , Gaetano Pini Institute, Center of Pediatric Rheumatology, Chair of Rheumatology, University of Milan , Milan , Italy
| |
Collapse
|
4
|
Rumsey DG, Myones B, Massicotte P. Diagnosis and treatment of antiphospholipid syndrome in childhood: A review. Blood Cells Mol Dis 2017; 67:34-40. [PMID: 28283251 DOI: 10.1016/j.bcmd.2017.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 01/14/2023]
Abstract
The antiphospholipid syndrome (APS) is a multisystem autoimmune disease characterized by recurrent fetal loss and thromboembolic events associated with the presence of elevated titres of antiphospholipid antibodies (aPL). The purpose of this review is to summarize what is currently known about the diagnosis and treatment of pediatric APS, to highlight key differences between APS presenting in adults versus children throughout, and to identify areas where future research is needed.
Collapse
Affiliation(s)
- Dax G Rumsey
- Department of Pediatrics, University of Alberta, 11405 87 Ave NW, Edmonton, AB T6G 1C9, Canada.
| | - Barry Myones
- Pediatric Rheumatology, 2119 Plantation Bend Drive, Sugar Land, TX 77478, USA
| | - Patti Massicotte
- Department of Pediatrics, University of Alberta, 11405 87 Ave NW, Edmonton, AB T6G 1C9, Canada
| |
Collapse
|
5
|
Sathe KP, Ohri A, Mishra A, Ali U. Digital gangrene in a child with atypical hemolytic uremic syndrome associated with anti-factor H antibodies. Indian J Nephrol 2016; 26:231-2. [PMID: 27194846 PMCID: PMC4862277 DOI: 10.4103/0971-4065.169557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- K P Sathe
- Division of Paediatric Nephrology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - A Ohri
- Division of Paediatric Nephrology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - A Mishra
- Division of Paediatric Nephrology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - U Ali
- Division of Paediatric Nephrology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| |
Collapse
|
6
|
Abstract
Antiphospholipid syndrome (APS) is a multisystem autoimmune condition characterized by vascular thromboses associated with persistently positive antiphospholipid antibodies. There is currently a paucity of data (incidence, prevalence, thrombosis risk, and effective treatment) in pediatric APS. The purpose of this report is to review the current literature on APS in children and neonates, identify the gaps in current knowledge, and suggest avenues for studies to fill those gaps.
Collapse
|
7
|
|
8
|
Noda S, Ogura M, Tsutsumi A, Udagawa T, Kamei K, Matsuoka K, Kitamura H, Atsumi T, Ito S. Thrombotic microangiopathy due to multiple autoantibodies related to antiphospholipid syndrome. Pediatr Nephrol 2012; 27:681-5. [PMID: 22210384 DOI: 10.1007/s00467-011-2085-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 11/12/2011] [Accepted: 11/30/2011] [Indexed: 10/14/2022]
Abstract
BACKGROUND Antiphospholipid syndrome (APS) is a rare disorder in children. More than half of childhood APS occurs as secondary APS complicated by systemic lupus erythematosus (SLE) and other autoimmune diseases. CASE-DIAGNOSIS/TREATMENT We encountered a boy with SLE who presented with thrombotic microangiopathy (TMA) due to APS. He was initially diagnosed with SLE and treated with methylprednisolone pulse therapy. However, his renal function rapidly deteriorated. Since poikilocytes were detected, we suspected that his condition was complicated by TMA or APS. Urgent plasma exchange, continuous hemodialysis, and intravenous cyclophosphamide saved the patient and his renal failure ameliorated. A renal biopsy performed at the onset of disease showed multiple microvascular thrombi, diffuse mesangiolysis, and cortical necrosis compatible with TMA. He was positive for anticardiolipin antibody, anti-β2-glycoprotein I antibody, and lupus anticoagulant as well as anti-phosphatidylserine-prothrombin complex IgG antibody (aPS/PT). Anti-a disintegrin-like and metalloproteinase with thrombospondin type 1 motifs 13 (ADAMTS13) antibody was negative and ADAMTS13 activity was normal. The aPS/PT is thrombogenic and is a newly discovered lupus anticoagulant. CONCLUSIONS Childhood TMA due to APS has rarely been reported. To the best of our knowledge this is the first report of pediatric TMA due to APS with positive aPS/PT. Physicians need to be aware of aPS/PT in pediatric APS and/or SLE.
Collapse
Affiliation(s)
- Shunsuke Noda
- Division of Nephrology and Rheumatology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Praprotnik S, Ferluga D, Vizjak A, Hvala A, Avčin T, Rozman B. Microthrombotic/Microangiopathic Manifestations of the Antiphospholipid Syndrome. Clin Rev Allergy Immunol 2008; 36:109-25. [DOI: 10.1007/s12016-008-8104-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|