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Xourgia E, Tektonidou MG. Antiphospholipid syndrome nephropathy: Current knowledge and unanswered questions. Clin Immunol 2023; 255:109735. [PMID: 37572950 DOI: 10.1016/j.clim.2023.109735] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
The definition of acute and chronic antiphospholipid syndrome (APS) nephropathy was recently updated using a multiphase methodology in the context of the development of the new APS classification criteria. Currently, there is no consensus for the treatment of APS nephropathy, which mainly relies on the general recommendations for the management of APS. Based on evidence from experimental studies and a few clinical studies and case series, targeted treatments such as B-cell depletion, anti-B-cell activating factor antibody, complement inhibition, mammalian target of rapamycin inhibition, and neutrophil extracellular traps or interferon targeting may show promise for the treatment of microvascular manifestations in APS, including APS nephropathy. Validation of the new APS nephropathy definition and/or efforts for improvement in proposed terminology, along with the assessment of the safety and efficacy of potential targeted treatments in randomized controlled trials, are major future research directions. In this review, we summarize the current knowledge of APS nephropathy and discuss unanswered questions.
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Affiliation(s)
- Eleni Xourgia
- First Department of Propaedeutic Internal Medicine, Joint Academic Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | - Maria G Tektonidou
- First Department of Propaedeutic Internal Medicine, Joint Academic Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece.
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2
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Honda N, Shigehara R, Furuhashi K, Nagai Y, Yokogawa N. Anti-glomerular basement membrane diseases and thrombotic microangiopathy treated with rituximab. Mod Rheumatol Case Rep 2022:rxac091. [PMID: 36420905 DOI: 10.1093/mrcr/rxac091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/10/2022] [Accepted: 11/23/2022] [Indexed: 06/16/2023]
Abstract
A 68-year-old, male patient presented with a two-week history of malaise and anuria. Renal replacement therapy with hemodialysis was begun for acute kidney injury. His anti-glomerular basement membrane (anti-GBM) antibody titer was 3060 U/mL. Based on this finding, anti-GBM diseases was diagnosed. Plasmapheresis and high-dose glucocorticoid therapy were begun, but his hemolytic anemia and thrombocytopenia progressed. ADAMTS-13 activity decreased to 33%, but no inhibitor was detected. Secondary thrombotic microangiopathy (TMA) was suspected, and rituximab therapy was begun. The addition of rituximab is thought to have further reduced the anti-GBM antibodies, prevented recurrence, stabilized the platelet count, and facilitated the patient's withdrawal from plasmapheresis and glucocorticoid therapy. Rituximab may be a viable therapeutic option for anti-GBM diseases complicated with TMA.
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Affiliation(s)
- Nanase Honda
- Department of Internal Medicine Hino Municipal Hospital, Tokyo, Japan
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Rihiro Shigehara
- Department of Internal Medicine Hino Municipal Hospital, Tokyo, Japan
| | - Kazunori Furuhashi
- Department of Internal Medicine Hino Municipal Hospital, Tokyo, Japan
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiki Nagai
- Department of Internal Medicine Hino Municipal Hospital, Tokyo, Japan
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Naoto Yokogawa
- Department of Internal Medicine Hino Municipal Hospital, Tokyo, Japan
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
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Chung CH, Tsai IJ, Tseng MH, Chou HH, Tain YL, Tsai JD, Chiou YY, Chiou YH, Lin CY. Clinical characteristics, triggering etiologies, and response of plasmapheresis in thrombotic microangiopathy in Taiwan. Medicine (Baltimore) 2021; 100:e25986. [PMID: 34011089 PMCID: PMC8137071 DOI: 10.1097/md.0000000000025986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/28/2021] [Indexed: 01/05/2023] Open
Abstract
Thrombotic microangiopathy (TMA) syndromes are extraordinarily diverse in clinical presentations and etiologies. However, there are still a limited number of large cohort studies focusing on the underlying causes, outcomes, and response to plasmapheresis.A retrospective study was designed to understand trigger etiologies, organ dysfunctions, clinical outcomes, and efficacy of plasmapheresis in patients with TMA. The whole population of Taiwan was set up into 2 cohorts: 875 patients with TMA in the 2006 cohort (2006-2010) and 1352 patients with TMA in the 2011 cohort (2011-2015). One hundred ninety-five patients in the 2006 cohort and 272 patients in the 2011 cohort were under plasmapheresis treatment.The common underlying etiologies were pregnancy, followed by systemic lupus erythematosus, rheumatoid arthritis, transplantation and drugs, which were significantly higher than the control group. Stroke, seizure, arterial thrombosis, vascular stenosis, hypertension, myocardial infarction, and pancreatitis were the main clinical signs and extra-renal involvements. In the multivariate regression analysis, stroke, arterial thrombosis, peripheral arterial disease, and uremia were significantly higher compared with the control group. The mortality rate in TMA under plasmapheresis was significantly higher than all TMA cases (39.33% vs 15.39% in the 2006 cohort and 39.27% vs 15.06% in the 2011 cohort).This study indicated the spectrum of underlying causes, extra-renal characteristics, and the response to plasmapheresis of patients with TMA in Taiwan. Of note, the poor clinical outcomes of plasmapheresis in patients with TMA might highlight the masked underlying etiology or worse disease condition that should be noticed.
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Affiliation(s)
- Ching-Hu Chung
- Department of Medicine, Mackay Medical College, New Taipei City
| | - I-Jung Tsai
- Division of Nephrology, Department of Pediatrics, National Taiwan University Children Hospital, Taipei
| | - Min-Hua Tseng
- Division of Nephrology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Pediatrics, Xiamen Chang Gung Hospital, Ximen, China
| | - Hsin-Hsu Chou
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi
- Department of Bioinformatics and Medical Engineering, College of Information and Electrical Engineering, Asia University, Taichung
| | - You-Lin Tain
- Division of Pediatric Nephrology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung
| | - Jeng-Daw Tsai
- Division of Nephrology, Department of Pediatrics, MacKay Children's Hospital, Taipei
| | - Yuan-Yow Chiou
- Departments of Pediatrics, Institute of Clinical Medicine, National Cheng Kung University Medical College and Hospital, Tainan 704
| | - Yee-Hsuan Chiou
- Department of Pediatrics, Kaohsiung Veterans General Hospital
- Department of Medical Technology, Fooyin University, Kaohsiung 831
| | - Ching-Yuang Lin
- Clinical Immunological Center, Children's Hospital, China Medical University, Taichung, Taiwan
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4
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Chen WC, Ko PS, Wang HY, Liu YC, Hsiao LT, Gau JP, Liu JH. Difference in thrombotic microangiopathy between concurrently and previously diagnosed systemic lupus erythematosus. J Chin Med Assoc 2020; 83:743-750. [PMID: 32371665 DOI: 10.1097/jcma.0000000000000344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Thrombotic microangiopathy (TMA) syndromes are potentially life-threatening complications and are defined as integrated syndromes of microangiopathic hemolytic anemia, thrombocytopenia, and organ injury. Systemic lupus erythematosus (SLE) is an autoimmune disease that can affect various organs, including the hematopoietic system. SLE can complicate with TMA and can be categorized into two distinct groups by chronological association: TMA occurring as the initial presentation and leading to a diagnosis of SLE concurrently (TMA-cSLE) or TMA developing in patients previously diagnosed as having SLE (TMA-pSLE). We examined the differences in clinical characteristics, treatment responses, and clinical outcomes between these groups. METHODS We reviewed data of patients diagnosed as having TMA and SLE at Taipei Veterans General Hospital between 2002 and 2013. We included 29 patients: 8 and 21 in TMA-cSLE and TMA-pSLE groups, respectively. All underwent plasma exchange. Patients' demographic and clinical characteristics, disease activity, and treatment modality were summarized. RESULTS Overall survival (OS) from SLE or TMA diagnosis was poor for the TMA-cSLE group. Median OS from SLE diagnosis was 2.9 months in the TMA-cSLE group and 103.5 months in the TMA-pSLE group (p < 0.001). Median OS from TMA diagnosis was 2.9 months in the TMA-cSLE group and 10.7 months in the TMA-pSLE group (p = 0.58). Time to TMA remission after treatment appeared longer in the TMA-cSLE group (38.00 vs 10.76 days). Multivariate Cox analysis revealed TMA-cSLE and anti-RNP positivity were independent risk factors for mortality in SLE patients with TMA. CONCLUSION The occurrence of TMA with SLE is rare, and its vigorous course results in high mortality and morbidity rates. In patients without a history of autoimmune disease, early suspicion of TMA and working-up for SLE under this condition are vital. Early recognition of TMA-cSLE and prompt plasma exchange with upfront immunosuppressive therapies for TMA-cSLE patients or anti-RNP-positive patients may improve their prognosis.
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Affiliation(s)
- Wen-Chun Chen
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Po-Shen Ko
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Hao-Yuan Wang
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yao-Chung Liu
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Liang-Tsai Hsiao
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Jyh-Pyng Gau
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Jin-Hwang Liu
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Kaneda T, Tanaka E, Akutsu Y, Kanamori T, Mouri M, Morio T, Mori M. Refractory secondary thrombotic microangiopathy with kidney injury associated with systemic lupus erythematosus in a pediatric patient. CEN Case Rep 2020; 9:301-307. [PMID: 32304042 DOI: 10.1007/s13730-020-00475-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/02/2020] [Indexed: 11/30/2022] Open
Abstract
Thrombotic microangiopathy (TMA) is generally diagnosed through clinical features characterized as microangiopathic hemolytic anemia, thrombocytopenia, and multiple organ injury, as well as by pathological findings such as vascular damage and endothelial cell injury. Rheumatic and autoimmune diseases could be accompanied by secondary TMA; in fact, systemic lupus erythematosus (SLE) is a common disease associated with secondary TMA, and SLE complicated with TMA has been reported to have a poor prognosis. Although TMA occurs rarely in pediatric SLE patients, it often leads to severe clinical conditions. Here, we report a rare case of severe juvenile-onset SLE complicated with TMA and kidney injury. The 5-year-old patient showed renal dysfunction, thrombocytopenia, hemolytic anemia, nephrotic syndrome, hypocomplementemia, and elevation of anti-dsDNA IgG levels. Kidney biopsy revealed mesangial proliferation and endocapillary proliferation, as well as plumped endothelial cells, with full-house pattern deposits in immunofluorescence study. Combination treatment of methylprednisolone pulse therapy followed by oral prednisolone, mycophenolate mofetil, and plasma exchange was effective, whereas eculizumab did not show therapeutic effects. The patient further showed recurrent deterioration, and we initiated intravenous cyclophosphamide in addition to combination treatment and eventually succeeded in controlling the disease. Genome analysis by whole-exome sequencing revealed no particular gene mutation related to either complement disorders or type-1 interferon. Further elucidations concerning the pathogenic mechanisms causing juvenile-onset SLE are needed to establish an efficient treatment strategy for TMA with SLE.
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Affiliation(s)
- Tomoya Kaneda
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eriko Tanaka
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan. .,Department of Pediatrics, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan.
| | - Yuko Akutsu
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toru Kanamori
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mariko Mouri
- Department of Lifetime Clinical Immunology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masaaki Mori
- Department of Lifetime Clinical Immunology, Tokyo Medical and Dental University, Tokyo, Japan
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Kotzen ES, Roy S, Jain K. Antiphospholipid Syndrome Nephropathy and Other Thrombotic Microangiopathies Among Patients With Systemic Lupus Erythematosus. Adv Chronic Kidney Dis 2019; 26:376-386. [PMID: 31733722 DOI: 10.1053/j.ackd.2019.08.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/07/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023]
Abstract
Antiphospholipid syndrome (APS) and other causes of thrombotic microangiopathy (TMA) negatively impact the renal outcomes of patients with systemic lupus erythematosus (SLE) and lupus nephritis. Here we review the diagnosis and management of occlusive renal vascular lesions due to APS and other TMAs, with a focus on patients with SLE and lupus nephritis. The presence of a thrombotic event, unexplained hypertension, thrombocytopenia, or hemolytic anemia should prompt consideration for TMA syndromes. The differential diagnosis of a TMA in a patient with SLE includes APS, thrombocytopenic purpura, complement-mediated or infection-associated hemolytic uremic syndrome, drug-mediated TMA (particularly due to calcineurin inhibitor toxicity), and malignant hypertension. Treatment of APS with a documented thrombotic event focuses on anticoagulation to reduce the risk for further thrombotic events. Treatment of classic presentations of thrombocytopenic purpura and hemolytic uremic syndrome in the SLE population is the same as in patients without SLE. Treatment of APS nephropathy or TMA when it is diagnosed by biopsy with concomitant lupus nephritis presents a challenge to clinicians because there is no clear standard of care. Small and retrospective studies suggest potential benefit of complement inhibition, mammalian target of rapamycin (mTOR) inhibition, B cell depleting therapy, and plasma exchange therapy for patients with lupus nephritis and TMA, and prospective investigation of these therapies should be a research priority.
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Iba T, Watanabe E, Umemura Y, Wada T, Hayashida K, Kushimoto S, Wada H. Sepsis-associated disseminated intravascular coagulation and its differential diagnoses. J Intensive Care 2019; 7:32. [PMID: 31139417 PMCID: PMC6528221 DOI: 10.1186/s40560-019-0387-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/02/2019] [Indexed: 12/19/2022] Open
Abstract
Disseminated intravascular coagulation (DIC) is a common complication in sepsis. Since DIC not only promotes organ dysfunction but also is a strong prognostic factor, its diagnosis at the earliest possible timing is important. Thrombocytopenia is often present in patients with DIC but can also occur in a number of other critical conditions. Of note, many of the rare thrombocytopenic diseases require prompt diagnoses and specific treatments. To differentiate these diseases correctly, the phenotypic expressions must be considered and the different disease pathophysiologies must be understood. There are three major players in the background characteristics of thrombocytopenia: platelets, the coagulation system, and vascular endothelial cells. For example, the activation of coagulation is at the core of the pathogenesis of sepsis-associated DIC, while platelet aggregation is the essential mechanism in thrombotic thrombocytopenic purpura and endothelial damage is the hallmark of hemolytic uremic syndrome. Though each of the three players is important in all thrombocytopenic diseases, one of the three dominant players typically establishes the individual features of each disease. In this review, we introduce the pathogeneses, symptoms, diagnostic measures, and recent therapeutic advances for the major diseases that should be immediately differentiated from DIC in sepsis.
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Affiliation(s)
- Toshiaki Iba
- 1Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Eizo Watanabe
- 2Department of General Medical Science Graduate School of Medicine Chiba University, Chiba, Japan.,Department of Emergency and Critical Care Medicine Eastern Chiba Medical Center, Chiba, Japan
| | - Yutaka Umemura
- 4Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Wada
- 5Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Kei Hayashida
- 6Department of Emergency and Critical Care Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Shigeki Kushimoto
- 7Division of Emergency and Critical Care Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Hideo Wada
- 8Department of Molecular and Laboratory Medicine, Mie University School of Medicine, Tsu, Japan
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Trojnar E, Józsi M, Szabó Z, Réti M, Farkas P, Kelen K, Reusz GS, Szabó AJ, Garam N, Mikes B, Sinkovits G, Mező B, Csuka D, Prohászka Z. Elevated Systemic Pentraxin-3 Is Associated With Complement Consumption in the Acute Phase of Thrombotic Microangiopathies. Front Immunol 2019; 10:240. [PMID: 30858847 PMCID: PMC6397851 DOI: 10.3389/fimmu.2019.00240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/28/2019] [Indexed: 01/08/2023] Open
Abstract
Pentraxin-3 (PTX3) and C-reactive protein (CRP) have been shown to regulate complement activation in vitro, but their role has not been investigated in complement consumption in vivo. Thrombotic microangiopathies (TMA) are often accompanied by complement overactivation and consumption, therefore we analyzed the relation of the systemic pentraxin levels to the complement profile, laboratory parameters and clinical outcome of TMA patients. We determined the PTX3 and CRP levels, complement factor and activation product concentrations in blood samples of 171 subjects with the diagnosis of typical hemolytic uremic syndrome (STEC-HUS) (N = 34), atypical HUS (aHUS) (N = 44), secondary TMA (N = 63), thrombotic thrombocytopenic purpura (TTP) (N = 30) and 69 age-matched healthy individuals. Clinical data, blood count and chemistry were collected from medical records. To determine the in vitro effect of PTX3 on alternative pathway (AP) activation, sheep red blood cell-based hemolytic assay and AP activity ELISA were used. We found that PTX3 levels were elevated in the acute phase of STEC-HUS, aHUS and secondary TMA, whereas PTX3 elevation was exceptional is TTP. Conversely, a significantly higher median CRP was present in all patient groups compared to controls. PTX3, but not CRP was associated with signs of complement consumption in vivo, and PTX3 significantly decreased the AP hemolytic activity in vitro. Our results provide a detailed description of acute phase-TMA patients' complement profile linked to changes in the systemic pentraxin levels that may support further molecular studies on the function of PTX3 in disease pathogenesis and add to the laboratory assessment of complement consumption in TMA.
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Affiliation(s)
- Eszter Trojnar
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Mihály Józsi
- Complement Research Group, Department of Immunology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Zsóka Szabó
- Complement Research Group, Department of Immunology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Marienn Réti
- Department of Haematology and Stem Cell Transplantation, Central Hospital of Southern Pest, National Institute for Hematology and Infectious Diseases, Budapest, Hungary
| | - Péter Farkas
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Kata Kelen
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - George S Reusz
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Attila J Szabó
- 1st Department of Pediatrics, Semmelweis University, Budapest, Hungary.,MTA-SE Pediatric and Nephrology Research Group, Budapest, Hungary
| | - Nóra Garam
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Bálint Mikes
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - György Sinkovits
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Blanka Mező
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Dorottya Csuka
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Zoltán Prohászka
- Research Laboratory, MTA-SE Research Group of Immunology and Hematology, 3rd Department of Internal Medicine, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
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Abstract
Thrombotic microangiopathies are heterogeneous disorders characterized by microangiopathic hemolytic anemia with thrombocytopenia and renal injury. There are a variety of causes, including metabolic disorders, infections, medications, complement disorders, pregnancy, malignancy, and autoimmune disorders. This review focuses on renal thrombotic microangiopathy in the setting of rheumatologic diseases. Systemic lupus erythematosus is the most common autoimmune disease associated with thrombotic microangiopathy. Other etiologies include scleroderma renal crisis and antiphospholipid antibody syndrome, which can be primary or secondary to autoimmune diseases including systemic lupus erythematosus. There have also been case reports of thrombotic microangiopathy in the setting of rheumatoid arthritis and dermatomyositis.
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