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Saldanha A, Colella MP, Villaça PR, Thachil J, Orsi FA. The immune thrombocytopenia paradox: Should we be concerned about thrombosis in ITP? Thromb Res 2024; 241:109109. [PMID: 39137700 DOI: 10.1016/j.thromres.2024.109109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/03/2024] [Accepted: 07/30/2024] [Indexed: 08/15/2024]
Abstract
Despite the predisposition to bleeding, patients with immune thrombocytopenia (ITP) may also have an increased risk of arterial and venous thrombosis, which can contribute to significant morbidity. The risk of thrombosis increases with age and the presence of cardiovascular risk factors. This narrative review explores the multifactorial nature of thrombosis in ITP, focusing on new pathological mechanisms, emerging evidence on the association between established treatments and thrombotic risk, the role of novel treatment approaches, and the challenges in assessing the balance between bleeding and thrombosis in ITP. The review also explores the challenges in managing acute thrombotic events in ITP, since the platelet count does not always reliably predict either the risk of bleeding or thrombosis and antithrombotic strategies lack specific guidelines for ITP. Notably, second-line therapeutic options, such as splenectomy and thrombopoietin receptor agonists (TPO-RAs), exhibit an increased risk of thrombosis especially in older individuals or those with multiple thrombotic risk factors or previous thrombosis, emphasizing the importance of careful risk assessment before treatment selection. In this context, it is important to consider second-line therapies such as rituximab and other immunosuppressive agents, dapsone and fostamatinib, which are not associated with increased thrombotic risk. In particular, fostamatinib, an oral spleen tyrosine kinase inhibitor, has promisingly low thrombotic risk. During the current era of the emergence of several novel ITP therapies that do not pose additional risks for thrombosis, it is critical to outline evidence-based strategies for the prevention and treatment of thrombosis in ITP patients.
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Affiliation(s)
- Artur Saldanha
- Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), Brazil; Hematology and Hemotherapy Center of Alagoas (HEMOAL), Brazil
| | | | - Paula Ribeiro Villaça
- Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), Brazil
| | - Jecko Thachil
- Department of Haematology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Fernanda Andrade Orsi
- Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), Brazil; Department of Pathology, Faculty of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Brazil.
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Lambert C, Maitland H, Ghanima W. Risk-based and individualised management of bleeding and thrombotic events in adults with primary immune thrombocytopenia (ITP). Eur J Haematol 2024; 112:504-515. [PMID: 38088207 DOI: 10.1111/ejh.14154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 03/19/2024]
Abstract
Although bleeding is one of the main symptoms of primary immune thrombocytopenia (ITP), risk factors for bleeding have yet to be fully established. Low platelet count (PC; <20-30 × 109 /L) is generally indicative of increased risk of bleeding. However, PC and bleeding events cannot be fully correlated; many other patient- and disease-related factors are thought to contribute to increased bleeding risk. Furthermore, even though ITP patients have thrombocytopenia and are at increased risk of bleeding, ITP also carries higher risk of thrombotic events. Factors like older age and certain ITP treatments are associated with increased thrombotic risk. Women's health in ITP requires particular attention concerning haemorrhagic and thrombotic complications. Management of bleeding/thrombotic risk, and eventually antithrombotic therapies in ITP patients, should be based on individual risk profiles, using a tailored, patient-centric approach. Currently, evidence-based recommendations and validated tools are lacking to support decision-making and help clinicians weigh risk of bleeding against thrombosis. Moreover, evidence is lacking about optimal PC for achieving haemostasis in invasive procedures settings. Further research is needed to fully define risk factors for each event, enabling development of comprehensive risk stratification approaches. This review discusses risk-based and individualised management of bleeding and thrombosis risk in adults with primary ITP.
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Affiliation(s)
- Catherine Lambert
- Hemostasis and Thrombosis Unit, Division of Hematology, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | - Hillary Maitland
- Division of Hematology and Oncology, University of Virginia Medical Center, Charlottesville, Virginia, USA
| | - Waleed Ghanima
- Department of Hemato-oncology, Østfold Hospital, Oslo University, Oslo, Norway
- Department of Hematology, Institute of Clinical Medicine, Oslo University, Oslo, Norway
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Provan D, Thachil J, Álvarez Román MT. Addressing thrombosis concerns in immune thrombocytopenia: the role of fostamatinib in immune thrombocytopenia management. Expert Rev Hematol 2024; 17:55-66. [PMID: 38369947 DOI: 10.1080/17474086.2024.2318345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
INTRODUCTION Immune thrombocytopenia (ITP), a disease that commonly presents with an increased risk of bleeding, can also paradoxically produce an increased risk of thromboembolic events. The risk of thromboembolism can be associated with patient-related factors (e.g. co-morbidities, age and history of thrombosis), disease-related factors (e.g. a greater proportion of younger, more reactive platelets, and the presence of microparticles and pro-inflammatory cytokines) and treatment-related factors (e.g. splenectomy, thrombopoietin receptor agonists, and IVIg). AREAS COVERED Aspects of the pathophysiology of ITP and the effects of treatment are discussed with emphasis on individualizing treatment based on the patient's thromboembolic risk, treatment options and preferences. EXPERT OPINION An increased understanding of the pathophysiology of ITP has led to the development of new agents such as fostamatinib, a spleen tyrosine kinase inhibitor. Further research into the factors contributing to the risks for bleeding and thromboembolic events can contribute to the development of more specific therapies for ITP and allow greater individualization of therapy based on each patient's medical history and clinical status.
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Affiliation(s)
- Drew Provan
- Department of Haematology, Emeritus Reader in Autoimmune Haematology, Barts & The London School of Medicine, London, UK
| | - Jecko Thachil
- Haemostasis and Thrombosis, Consultant in Haemostasis and Thrombosis, Manchester Royal Infirmary, Manchester, UK
| | - María Teresa Álvarez Román
- Head of the Haemostasis Unit, University Hospital La Paz, Autonomous University of Madrid, Madrid, Spain
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Han S, Lu H, Yu Y, Liu X, Jing F, Wang L, Zhao Y, Hou M. Hyperlipidemia in immune thrombocytopenia: a retrospective study. Thromb J 2023; 21:102. [PMID: 37784127 PMCID: PMC10544441 DOI: 10.1186/s12959-023-00545-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 09/13/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Immune thrombocytopenia (ITP) is an autoimmune hemorrhagic disease characterized by low platelet count and bleeding manifestations. However, some patients also suffered from atherosclerosis or even infarction. Apart from activated platelets, lipid metabolism takes a large part in the formation of atherosclerosis and metabolic syndrome. The lipid metabolic state in ITP patients is still unknown. METHODS We retrospectively reviewed 302 hospitalized ITP patients in our cohort, comparing their blood lipids, bleeding symptoms, metabolic diseases and treatment responses. RESULTS We found a high proportion of ITP patients suffered from hyperlipidemia, and other metabolic diseases including cardiovascular or cerebral atherosclerosis or infarction, hypertension, and type 2 diabetes. Hyperlipidemia was associated with severe bleeding and treatment refractoriness in ITP. Statins could alleviate thrombocytopenia and bleeding severity, and facilitate ITP treatment, while improving hyperlipidemia in ITP patients. CONCLUSIONS Our present study demonstrated that lipid metabolism might play an indispensable role in ITP pathogenesis and development.
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Affiliation(s)
- Shouqing Han
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Hui Lu
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Yafei Yu
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Xinguang Liu
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China
| | - Fangmiao Jing
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Liang Wang
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China.
- Department of Hematology, Shengli Oilfield Central Hospital, Dongying, China.
| | - Yajing Zhao
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China.
- Shandong Provincial Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Jinan, China.
| | - Ming Hou
- Department of Hematology, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China.
- Leading Research Group of Scientific Innovation, Department of Science and Technology of Shandong Province, Qilu Hospital of Shandong University, Jinan, China.
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[Chinese expert consensus on the diagnosis and treatment of thromboembolism in patients with immune thrombocytopenia (2023)]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2023; 44:6-11. [PMID: 36987717 PMCID: PMC10067366 DOI: 10.3760/cma.j.issn.0253-2727.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Indexed: 03/30/2023]
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Primary Cerebral Venous Thrombosis in a Patient with Immune Thrombocytopenic Purpura. Case Rep Neurol Med 2022; 2022:1346269. [PMID: 36035549 PMCID: PMC9417784 DOI: 10.1155/2022/1346269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 07/23/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Immune thrombocytopenic purpura is an autoimmune hematological disorder characterized by low platelet level due to its destruction through autoimmune antibodies. Cerebral venous thrombosis is a serious condition defined by a thrombosis in the cerebral venous sinuses that occurs mostly in the presence of a hypercoagulable state. Hemorrhage and thrombosis are processes with a paradoxical etiology; thus, the association between these two conditions seems to be extremely rare. Case Presentation. We herein report a case of a 19-year-old female with a chief compliant of generalized tonic-clonic episode, severe headache, and blurred vision. Physical examination was significant for a bilateral Babinski's sign and severe bilateral papilledema. Laboratory workup, computed tomography, and magnetic resonance imaging were normal except for severe thrombocytopenia. Magnetic resonance venography was diagnostic for cerebral venous thrombosis. Her past medical history was significant for immune thrombocytopenic purpura that was treated with prednisolone 40 mg per day which posed a therapeutic challenge. High-dose prednisolone and platelet transfusion were initiated; enoxaparin was administrated and switched to warfarin after stabilization of platelet count. The patient was neurologically intact after 14 days of appropriate treatment and was on follow-up. Many hypotheses were suggested to explain the unexpected thrombotic events in a patient with immune thrombocytopenic purpura which were related to the disease etiology or treatment, taking into account common risk factors (such as age, obesity, smoking, hypertension, diabetes mellitus, dyslipidemia, splenectomy, and oral contraceptive agents). Conclusion The association between immune thrombocytopenic purpura (which is a major risk factor for bleeding) and cerebral venous thrombosis ( which is caused by a thromboembolic event )has carried a major challenge to the management plan. We believe that immune thrombocytopenic purpura and its treatment methods should be taken into consideration as risk factors for thromboembolic phenomenon.
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Tărniceriu CC, Hurjui LL, Florea ID, Hurjui I, Gradinaru I, Tanase DM, Delianu C, Haisan A, Lozneanu L. Immune Thrombocytopenic Purpura as a Hemorrhagic Versus Thrombotic Disease: An Updated Insight into Pathophysiological Mechanisms. Medicina (B Aires) 2022; 58:medicina58020211. [PMID: 35208534 PMCID: PMC8875804 DOI: 10.3390/medicina58020211] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 11/16/2022] Open
Abstract
Immune thrombocytopenic purpura (ITP) is a blood disorder characterized by a low platelet count of (less than 100 × 109/L). ITP is an organ-specific autoimmune disease in which the platelets and their precursors become targets of a dysfunctional immune system. This interaction leads to a decrease in platelet number and, subsequently, to a bleeding disorder that can become clinically significant with hemorrhages in skin, on the mucous membrane, or even intracranial hemorrhagic events. If ITP was initially considered a hemorrhagic disease, more recent studies suggest that ITP has an increased risk of thrombosis. In this review, we provide current insights into the primary ITP physiopathology and their consequences, with special consideration on hemorrhagic and thrombotic events. The autoimmune response in ITP involves both the innate and adaptive immune systems, comprising both humoral and cell-mediated immune responses. Thrombosis in ITP is related to the pathophysiology of the disease (young hyperactive platelets, platelets microparticles, rebalanced hemostasis, complement activation, endothelial activation, antiphospholipid antibodies, and inhibition of natural anticoagulants), ITP treatment, and other comorbidities that altogether contribute to the occurrence of thrombosis. Physicians need to be vigilant in the early diagnosis of thrombotic events and then institute proper treatment (antiaggregant, anticoagulant) along with ITP-targeted therapy. In this review, we provide current insights into the primary ITP physiopathology and their consequences, with special consideration on hemorrhagic and thrombotic events. The accumulated evidence has identified multiple pathophysiological mechanisms with specific genetic predispositions, particularly associated with environmental conditions.
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Affiliation(s)
- Claudia Cristina Tărniceriu
- Department of Morpho-Functional Sciences I, Discipline of Anatomy, “Grigore T. Popa” University of Medicine and Pharmacy, Universității str 16, 700115 Iasi, Romania;
- Hematology Clinic, “Sf. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Loredana Liliana Hurjui
- Department of Morpho-Functional Sciences II, Discipline of Physiology, Grigore T. Popa University of Medicine and Pharmacy, 700115 Iasi, Romania
- Central Clinical Laboratory-Hematology Department, “Sf. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania;
- Correspondence: authors: (L.L.H.); (I.D.F.)
| | - Irina Daniela Florea
- Department of Morpho-Functional Sciences I, Discipline of Imunology, “Grigore T. Popa” University of Medicine and Pharmacy, Universității str 16, 700115 Iasi, Romania
- Correspondence: authors: (L.L.H.); (I.D.F.)
| | - Ion Hurjui
- Department of Morpho-Functional Sciences II, Discipline of Biophysics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Irina Gradinaru
- Department of Implantology Removable Dentures Technology, “Grigore T. Popa” University of Medicine and Pharmacy, Universității str 16, 700115 Iasi, Romania;
| | - Daniela Maria Tanase
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700111 Iasi, Romania;
| | - Carmen Delianu
- Central Clinical Laboratory-Hematology Department, “Sf. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania;
- Department of Biochemistry, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Anca Haisan
- Surgery Department, “Grigore T. Popa” University of Medicine and Pharmacy, Universității str 16, 700115 Iasi, Romania;
- Emergency Department, “Sf. Spiridon” Emergency County Hospital, 700111 Iasi, Romania
| | - Ludmila Lozneanu
- Department of Morpho-Functional Sciences I, Discipline of Histology, “Grigore T. Popa” University of Medicine and Pharmacy, Universității str 16, 700115 Iasi, Romania;
- Department of Pathology, “Sf. Spiridon” Emergency County Hospital, 700111 Iasi, Romania
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Marques P, de Vries F, Dekkers OM, van Furth WR, Korbonits M, Biermasz NR, Pereira AM. Pre-operative serum inflammation-based scores in patients with pituitary adenomas. Pituitary 2021; 24:334-350. [PMID: 33230695 DOI: 10.1007/s11102-020-01112-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/12/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Full blood count (FBC) and serum inflammation-based scores reflect systemic inflammation and predict outcomes in cancer, but little is known in pituitary adenomas (PAs). We aimed to characterise FBC and inflammation-based scores in PA patients and investigate their usefulness in predicting challenging disease course. METHODS We studied 424 PA patients first operated at our centre with available pre-operative biochemical data. Patients with infection, malignancies, autoimmune or haematological conditions were excluded. Inflammation-based scores studied: Neutrophil-to-Lymphocyte Ratio (NLR), Platelet-to-Lymphocyte Ratio (PLR), Lymphocyte-to-Monocyte Ratio (LMR), Systemic Immune-Inflammation Index (SII), Neutrophil-Platelet Score (NPS), Prognostic Nutrition Index (PNI), and Glasgow Prognostic Score (GPS). RESULTS Cushing's disease patients had more platelets, leucocytes, neutrophils and monocytes, and higher NLR, NPS and SII. Serum inflammation-based scores didn't differ among non-Cushing PA subtypes. The glucocorticoid excess severity influenced leucocyte, eosinophil, basophil and platelet counts, and GPS in Cushing's disease. Patients with functioning non-Cushing PAs with suprasellar extension, cavernous sinus invasion and hypopituitarism had GPS ≥ 1, while NPS ≥ 1 was associated with suprasellar extension. More invasive and difficult to treat corticotrophinomas were associated with fewer platelets pre-operatively (< 299.5 × 109/L predicting multimodal treatment). Non-functioning PA patients who suffered apoplexy had more leucocytes, neutrophils and monocytes, higher GPS ≥ 1 and fewer platelets; re-operated cases had fewer lymphocytes, higher NLR and PLR. CONCLUSIONS Serum inflammation-based scores may predict invasive/refractory PAs: GPS and PNI in non-functioning and functioning non-Cushing PAs; NPS in functioning non-Cushing PAs; NLR and PLR in non-functioning PAs. Platelets < 299.5 × 109/L predict multimodal treatment in Cushing's disease. Further studies are needed to confirm these observations.
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Affiliation(s)
- Pedro Marques
- Department of Medicine, Division of Endocrinology and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Friso de Vries
- Department of Medicine, Division of Endocrinology and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Olaf M Dekkers
- Department of Medicine, Division of Endocrinology and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Wouter R van Furth
- Department of Neurosurgery and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Leiden, The Netherlands
| | - Márta Korbonits
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Nienke R Biermasz
- Department of Medicine, Division of Endocrinology and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Alberto M Pereira
- Department of Medicine, Division of Endocrinology and Center for Endocrine Tumors Leiden (CETL), Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
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Swan D, Newland A, Rodegheiro F, Thachil J. Thrombosis in immune thrombocytopenia - current status and future perspectives. Br J Haematol 2021; 194:822-834. [PMID: 33822358 DOI: 10.1111/bjh.17390] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disorder in which a combination of defective platelet production and enhanced clearance leads to thrombocytopenia. The primary aim for therapy in patients with this condition is the prevention of bleeding. However, more recently, increased rates of venous and arterial thrombotic events have been reported in ITP, even in the context of marked thrombocytopenia. In this review we discuss the epidemiology, aetiology and management of thrombotic events in these patients. We consider the impact of ITP therapies on the increased thrombotic risk, in particular the use of thrombopoietin-receptor agonists (TPO-RAs), as well as factors inherent to ITP itself. We also discuss the limited evidence available to guide clinicians in the treatment of these complex cases.
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Affiliation(s)
- Dawn Swan
- Department of Haematology, University Hospital Galway, Galway, Republic of Ireland
| | - Adrian Newland
- Department of Haematology, The Royal London Hospital, London, UK
| | | | - Jecko Thachil
- Department of Haematology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
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10
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Han X, Li C, Zhang S, Hou X, Chen Z, Zhang J, Zhang Y, Sun J, Wang Y. Why thromboembolism occurs in some patients with thrombocytopenia and treatment strategies. Thromb Res 2020; 196:500-509. [PMID: 33091704 DOI: 10.1016/j.thromres.2020.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/02/2020] [Accepted: 10/05/2020] [Indexed: 12/31/2022]
Abstract
Platelets play such an important role in the process of thrombosis that patients with thrombocytopenia generally have an increased risk of bleeding. However, abnormal thrombotic events can sometimes occur in patients with thrombocytopenia, which is unusual and inexplicable. The treatments for thrombocytopenia and thromboembolism are usually contradictory. This review introduces the mechanisms of thromboembolism in patients with different types of thrombocytopenia and outlines treatment recommendations for the prevention and treatment of thrombosis. According to the cause of thrombocytopenia, this article addresses four etiologies, including inherited thrombocytopenia (Myh9-related disease, ANKRD26-associated thrombocytopenia, Glanzmann thrombasthenia, Bernard-Soulier syndrome), thrombotic microangiopathy (thrombotic thrombocytopenic purpura, atypical hemolytic uremic syndrome, hemolytic uremic syndrome, Hemolysis Elevated Liver enzymes and Low Platelets syndrome, disseminated intravascular coagulation), autoimmune-related thrombocytopenia (immune thrombocytopenic purpura, antiphospholipid syndrome, systemic lupus erythematosus), and acquired thrombocytopenia (Infection-induced thrombocytopenia and drug-induced thrombocytopenia, heparin-induced thrombocytopenia). We hope to provide more evidence for clinical applications and future research.
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Affiliation(s)
- Xiaorong Han
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Cheng Li
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Shuai Zhang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Xiaojie Hou
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China.
| | - Zhongbo Chen
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Jin Zhang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Ying Zhang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Jian Sun
- Department of Cardiovascular Center, Jilin University First Hospital, China.
| | - Yonggang Wang
- Department of Cardiovascular Center, Jilin University First Hospital, China.
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Evaluation of thrombotic events in patients with immune thrombocytopenia. Ann Hematol 2019; 99:49-55. [DOI: 10.1007/s00277-019-03886-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 12/04/2019] [Indexed: 01/02/2023]
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12
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Lozano ML, Garabet L, Fernandez-Perez MP, De Los Reyes-García AM, Diaz-Lozano P, Garcia-Barbera N, Aguila S, Vicente V, Ghanima W, Martinez C, Gonzalez-Conejero R. Platelet activation and neutrophil extracellular trap (NET) formation in immune thrombocytopenia: is there an association? Platelets 2019; 31:906-912. [PMID: 31762368 DOI: 10.1080/09537104.2019.1696456] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
No biological predictors for the increased risk of thrombosis in patients with immune thrombocytopenia (ITP) have been identified. The aim of the study was to investigate platelet and neutrophil activation as well neutrophil extracellular trap (NET) formation in 63 ITP patients and 30 healthy volunteers. Platelet and neutrophil activation was assessed during steady state using flow cytometry analysis, and NETs were evaluated by quantitation of cell free DNA (cfDNA), and citrullinated histone-3-DNA (CitH3-DNA). Patient platelets and neutrophils showed increased CD62 and CD11b expression compared to controls (p = .038, and p = .022, respectively). In patients, platelet activation inversely correlated with platelet count and platelet size (p < .001), and positively correlated with neutrophil degranulation (p = .024). More NET formation, both CitH3-DNA (p = .025) and cfDNA(p < .001), were present in ITP patients compared to controls. CitH3-DNA inversely correlated with CD62 expression on platelets (p = .042), but higher levels of cfDNA were observed in individuals with classical cardiovascular risk factors for thrombosis, and in those with a previous history of thrombotic events. In this disease, the increased platelet activation and plasma NET levels seem to be separable processes that associate (either positively or inversely in the case of CitH3-DNA or platelet degranulation, respectively) to platelet mass.
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Affiliation(s)
- Maria L Lozano
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain.,Grupo de investigación CB15/00055 del Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII) , Madrid, Spain
| | - Lamya Garabet
- Multidisciplinary Laboratory Medicine and Medical Biochemistry, Akershus University Hospital , Lørenskog, Norway.,Center for Laboratory Medicine, Østfold Hospital Trust , Grålum, Norway.,Institute of Clinical Medicine, University of Oslo , Oslo, Norway
| | - Maria Piedad Fernandez-Perez
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Ascension M De Los Reyes-García
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Pedro Diaz-Lozano
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Nuria Garcia-Barbera
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Sonia Aguila
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Vicente Vicente
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain.,Grupo de investigación CB15/00055 del Centro de Investigacion Biomedica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII) , Madrid, Spain
| | - Waleed Ghanima
- Institute of Clinical Medicine, University of Oslo , Oslo, Norway.,Department of Research, Østfold Hospital Trust , Grålum, Norway.,Department of Medicine, Østfold Hospital Trus , Grålum, Norway
| | - Constantino Martinez
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
| | - Rocio Gonzalez-Conejero
- Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Universidad de Murcia , Murcia, Spain
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13
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Petri MA, Conklin J, O'Malley T, Dervieux T. Platelet-bound C4d, low C3 and lupus anticoagulant associate with thrombosis in SLE. Lupus Sci Med 2019; 6:e000318. [PMID: 31168401 PMCID: PMC6519690 DOI: 10.1136/lupus-2019-000318] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/14/2019] [Accepted: 02/27/2019] [Indexed: 11/26/2022]
Abstract
Background Low C3 and lupus anticoagulant (LAC) are known risk factors for thrombosis in SLE. We evaluated the association between C4d products deposited on platelets (PC4d) and thrombosis in SLE. Antiphosphatidyl serine/prothrombin (PS/PT) complex antibody was also evaluated as an alternative to LAC. Methods This was a cross-sectional analysis of 149 consented patients with SLE (mean age: 47±1 years, 86% female) classified with (n=16) or without (n=133) thrombotic events in the past 5 years. Abnormal PC4d (≥20 units) was measured using flow cytometry. LAC and C3 were measured using dilute Russell’s viper venom time (>37 s) and immunoturbidimetry, respectively. Anti-PS/PT antibody status (IgG) was measured by immunoassay. Statistical analysis consisted of logistic regression and calculation of OR estimates with 95% CI. Results Abnormal PC4d (OR=8.4, 95% CI 2.8 to 24.8), low C3 (OR=9.5, 95% CI 3.0 to 30.3), LAC (OR=5.4, 95% CI 1.3 to 22.3) and anti-PS/PT IgG (OR=3.4, 95% CI 1.2 to 9.7) status associated with thrombosis (p<0.05). Cumulatively, the presence of PC4d, low C3 and LAC abnormalities as a composite risk score was higher in the presence of thrombosis (1.93±0.25) than in its absence (0.81±0.06) (p<0.01). Each unit of this composite risk score yielded an OR of 5.2 (95% CI 2.5 to 10.7) to have thrombosis (p<0.01). The composite risk score with anti-PS/PT antibody status instead of LAC also associated with thrombosis (p<0.01). Conclusion A composite risk score including PC4d, low C3 and LAC was associated with recent thrombosis and acknowledges the multifactorial nature of thrombosis in SLE.
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Affiliation(s)
- Michelle A Petri
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - John Conklin
- Research and Development, Exagen, Vista, California, USA
| | - Tyler O'Malley
- Research and Development, Exagen, Vista, California, USA
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14
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Song T, Li X, Liu Y, Zhang X. Prevalence and risk factors of deep venous thrombosis in patients with longitudinally extensive transverse myelitis: one center data from China. BMC Neurol 2018; 18:179. [PMID: 30376813 PMCID: PMC6206719 DOI: 10.1186/s12883-018-1178-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/16/2018] [Indexed: 12/28/2022] Open
Abstract
Objective Deep venous thrombosis (DVT) is a severe complication in longitudinally extensive transverse myelitis (LETM) patients. It may interfere with LETM treatment and delay the recovery of the spinal dysfunction. However, there is less data about the prevalence and risk factors of DVT in patients with LETM. We analyzed data retrospectively to ascertain the prevalence of DVT and the clinical risk factors for DVT. Methods Clinical data on 255 LETM patients were collected from medical records. All patients were performed color Doppler ultrasound(US) to screen DVT in both lower extremities when admitted. Clinical characteristics of LETM patients with DVT were compared with those without DVT using corresponding statistical methods. Multivariate logistic regression was performed to identify risk factors related to DVT. Results DVT were found in 11.8% patients with LETM. Univariate analysis showed that age, muscle force and elevated baseline D-dimer were risk factors for DVT. After multivariate logistic regression, age, dyslipidemia, segments of lesions, and elevated baseline D-dimer remained significant independent risk factors. Conclusions DVT is common in patients with LETM and related to patient’s age, dyslipidemia, segments of lesions, and elevated baseline D-dimer. Early recognition of DVT and thrombosis prophylaxis are appropriate in patients with LETM.
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Affiliation(s)
- Tian Song
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Xindi Li
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Yonghong Liu
- Department of Neurology, Beijing Rehabilitation Hospital, Capital Medical University,Xixiazhuang, Shijingshan District, Beijing, 100050, People's Republic of China
| | - Xinghu Zhang
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China. .,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, 6 TiantanXili, Dongcheng District, Beijing, 100050, People's Republic of China.
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15
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Dural Venous Sinus Thrombosis and Pulmonary Embolism Following Immunoglobulin Treatment in Pediatric Patient With Immune Thrombocytopenic Purpura. J Pediatr Hematol Oncol 2017; 39:e508-e511. [PMID: 29068869 DOI: 10.1097/mph.0000000000000841] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Intravenous immunoglobulin (IVIG) is a widely used agent as the first choice of treatment of immune thrombocytopenic purpura (ITP). IVIG has several side effects, but it is a relatively safe treatment. Life-threatening thrombosis has been reported in adults and rarely in children. We report a case of a 14-year-old boy with dural venous sinus thrombosis and pulmonary embolism after treatment with IVIG for ITP. The patient was treated with low-molecular-weight heparin followed by warfarin and the symptoms were recovered. If a patient with ITP shows mental change or respiratory difficulty, we should consider thrombosis as well as hemorrhage.
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16
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Recurrent pulmonary embolism during dabigatran treatment in a patient with immune thrombocytopenic purpura. Thromb Res 2016; 148:23-24. [PMID: 27768935 DOI: 10.1016/j.thromres.2016.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 10/08/2016] [Accepted: 10/14/2016] [Indexed: 12/24/2022]
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17
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Affiliation(s)
- Jecko Thachil
- Department of Haematology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom
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18
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Kim KJ, Baek IW, Yoon CH, Kim WU, Cho CS. Thrombotic risk in patients with immune thrombocytopenia and its association with antiphospholipid antibodies. Br J Haematol 2013; 161:706-714. [PMID: 23530551 DOI: 10.1111/bjh.12318] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 02/26/2013] [Indexed: 11/29/2022]
Abstract
Patients with immune thrombocytopenia (ITP) paradoxically have an increased risk of thrombosis. The presence of antiphospholipid antibodies (aPL) has been observed in a substantial proportion of ITP patients, but its clinical significance remains to be established. This study retrospectively investigated the prevalence and clinical significance of aPL in ITP patients and assessed the risk factors for thrombosis. One hundred and sixty-five subjects with ITP were included in the study and followed for a mean period of 63·4 months. Sixty-nine (41·6%) patients were positive for aPL at diagnosis, and their clinical characteristics and course of ITP were not different from those of aPL-negative patients. Twenty-one (12·7%) patients developed a thrombotic event during follow-up and the cumulative incidence rate ratio of aPL-positive to aPL-negative patients for thromboembolism was 3·15 [95% confidence interval (CI) 1·21-8·17] after adjusting for confounding factors. Lupus anticoagulant and hypertension were identified by Cox regression analysis as independent risk factors for thrombosis [hazard ratio (HR) 4·1, 95% CI 1·4-11·9, P = 0·009 and HR 5·6, 95% CI 1·9-15·8, P = 0·001, respectively]. Our results showed that a substantial proportion of ITP patients were aPL-positive, and that lupus anticoagulant and hypertension were independent risk factors for thrombosis. Detection of aPL can provide useful information for identifying patients at high-risk for developing thrombosis.
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Affiliation(s)
- Ki-Jo Kim
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - In-Woon Baek
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chong-Hyeon Yoon
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Wan-Uk Kim
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chul-Soo Cho
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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