1
|
Nusrat S, Davis H, MacDougall K, George JN, Nakamura R, Borogovac A. Thrombotic Microangiopathy After Hematopoietic Stem Cell and Solid Organ Transplantation: A Review for Intensive Care Physicians. J Intensive Care Med 2024; 39:406-419. [PMID: 37990516 DOI: 10.1177/08850666231200193] [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] [Indexed: 11/23/2023]
Abstract
Intensive care physicians may assume the primary care of patients with transplant-associated thrombotic microangiopathy (TA-TMA), an uncommon but potentially critical complication of hematopoietic stem cell transplants (HSCTs) and solid organ transplants. TA-TMA can have a dramatic presentation with multiple organ dysfunction syndrome (MODS) associated with high morbidity and mortality. The typical presenting clinical features are hemolytic anemia, thrombocytopenia, refractory hypertension, proteinuria and worsening renal failure. Intestinal involvement, with abdominal pain, nausea and vomiting, gastrointestinal bleeding, and ascites are also common. Cardiopulmonary involvement may develop from various causes including pulmonary arteriolar hypertension, pleural and pericardial effusions, and diffuse alveolar hemorrhage. Due to other often concurrent complications after HSCT, early diagnosis and effective management of TA-TMA may be challenging. Close collaboration between ICU and transplant physicians, along with other relevant specialists, is needed to best manage these patients. There are currently no approved therapies for the treatment of TA-TMA. Plasma exchange and rituximab are not recommended unless circulating factor H (CFH) antibodies or thrombotic thrombocytopenic purpura (TTP; ADAMTS activity < 10%) are diagnosed or highly suspected. The role of the complement pathway activation in the pathophysiology of TA-TMA has led to the successful use of targeted complement inhibitors, such as eculizumab. However, the relatively larger studies using eculizumab have been mostly conducted in the pediatric population with limited data on the adult population. This review is focused on the role of intensive care physicians to emphasize the clinical approach to patients with suspected TA-TMA and to discuss diagnosis and treatment strategies.
Collapse
Affiliation(s)
- Sanober Nusrat
- Department of Medicine, Division of Hematology-Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Hugh Davis
- Division of Pulmonary and Critical Care Medicine, City of Hope, Duarte, CA, USA
| | - Kira MacDougall
- Department of Medicine, Division of Hematology-Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - James N George
- Department of Medicine, Division of Hematology-Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ryotaro Nakamura
- Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA, USA
| | - Azra Borogovac
- Department of Hematology and Hematopoietic Cell Transplantation, Lennar Foundation Cancer Center, City of Hope, Irvine, CA, USA
| |
Collapse
|
2
|
Lindsay JO, Hind D, Swaby L, Berntsson H, Bradburn M, Bannur C U, Byrne J, Clarke C, Desoysa L, Dickins B, Din S, Emsley R, Foulds GA, Gribben J, Hawkey C, Irving PM, Kazmi M, Lee E, Loban A, Lobo A, Mahida Y, Moran GW, Papaioannou D, Parkes M, Peniket A, Pockley AG, Satsangi J, Subramanian S, Travis S, Turton E, Uttenthal B, Rutella S, Snowden JA. Safety and efficacy of autologous haematopoietic stem-cell transplantation with low-dose cyclophosphamide mobilisation and reduced intensity conditioning versus standard of care in refractory Crohn's disease (ASTIClite): an open-label, multicentre, randomised controlled trial. Lancet Gastroenterol Hepatol 2024; 9:333-345. [PMID: 38340759 DOI: 10.1016/s2468-1253(23)00460-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 02/12/2024]
Abstract
BACKGROUND A previous controlled trial of autologous haematopoietic stem-cell transplantation (HSCT) in patients with refractory Crohn's disease did not meet its primary endpoint and reported high toxicity. We aimed to assess the safety and efficacy of HSCT with an immune-ablative regimen of reduced intensity versus standard of care in this patient population. METHODS This open-label, multicentre, randomised controlled trial was conducted in nine National Health Service hospital trusts across the UK. Adults (aged 18-60 years) with active Crohn's disease on endoscopy (Simplified Endoscopic Score for Crohn's Disease [SES-CD] ulcer sub-score of ≥2) refractory to two or more classes of biological therapy, with no perianal or intra-abdominal sepsis or clinically significant comorbidity, were recruited. Participants were centrally randomly assigned (2:1) to either HSCT with a reduced dose of cyclophosphamide (intervention group) or standard care (control group). Randomisation was stratified by trial site by use of random permuted blocks of size 3 and 6. Patients in the intervention group underwent stem-cell mobilisation (cyclophosphamide 1 g/m2 with granulocyte colony-stimulating factor (G-CSF) 5 μg/kg) and stem-cell harvest (minimum 2·0 × 106 CD34+ cells per kg), before conditioning (fludarabine 125 mg/m2, cyclophosphamide 120 mg/kg, and rabbit anti-thymocyte globulin [thymoglobulin] 7·5 mg/kg in total) and subsequent stem-cell reinfusion supported by G-CSF. Patients in the control group continued any available conventional, biological, or nutritional therapy. The primary outcome was absence of endoscopic ulceration (SES-CD ulcer sub-score of 0) without surgery or death at week 48, analysed in the intention-to-treat population by central reading. This trial is registered with the ISRCTN registry, 17160440. FINDINGS Between Oct 18, 2018, and Nov 8, 2019, 49 patients were screened for eligibility, of whom 23 (47%) were randomly assigned: 13 (57%) to the intervention group and ten (43%) to the control group. In the intervention group, ten (77%) participants underwent HSCT and nine (69%) reached 48-week follow-up; in the control group, nine (90%) reached 48-week follow-up. The trial was halted in response to nine reported suspected unexpected serious adverse reactions in six (46%) patients in the intervention group, including renal failure due to proven thrombotic microangiopathy in three participants and one death due to pulmonary veno-occlusive disease. At week 48, absence of endoscopic ulceration without surgery or death was reported in three (43%) of seven participants in the intervention group and in none of six participants in the control group with available data. Serious adverse events were more frequent in the intervention group (38 in 13 [100%] patients) than in the control group (16 in four [40%] patients). A second patient in the intervention group died after week 48 of respiratory and renal failure. INTERPRETATION Although HSCT with an immune-ablative regimen of reduced intensity decreased endoscopic disease activity, significant adverse events deem this regimen unsuitable for future clinical use in patients with refractory Crohn's disease. FUNDING Efficacy and Mechanism Evaluation Programme, a Medical Research Council and National Institute for Health Research partnership.
Collapse
Affiliation(s)
- James O Lindsay
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Daniel Hind
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Lizzie Swaby
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Hannah Berntsson
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Mike Bradburn
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Uday Bannur C
- Department of Radiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Jennifer Byrne
- Department of Haematology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Christopher Clarke
- Department of Radiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Lauren Desoysa
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Ben Dickins
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Shahida Din
- Department of Gastroenterology, Western General Hospital, Edinburgh, UK
| | - Richard Emsley
- Department of Biostatistics & Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Gemma A Foulds
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John Gribben
- Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Christopher Hawkey
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Peter M Irving
- Department of Gastroenterology, Guy's and Saint Thomas' Hospitals NHS Trust, London, UK
| | - Majid Kazmi
- King's College Hospital NHS Foundation Trust, London, UK
| | - Ellen Lee
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Amanda Loban
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Alan Lobo
- Department of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Yashwant Mahida
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Gordon W Moran
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Diana Papaioannou
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Miles Parkes
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Andrew Peniket
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - A Graham Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Jack Satsangi
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | | | - Simon Travis
- NIHR Biomedical Research Centre, Translational Gastroenterology Unit, Nuffield Department of Experimental Medicine, University of Oxford, Oxford, UK
| | - Emily Turton
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Ben Uttenthal
- Department of Clinical Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sergio Rutella
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John A Snowden
- Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, UK; Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| |
Collapse
|
3
|
Dandoy CE, Tsong WH, Sarikonda K, McGarvey N, Perales MA. Systematic Review of Signs and Symptoms Associated with Hematopoietic Stem Cell Transplantation-Associated Thrombotic Microangiopathy. Transplant Cell Ther 2023; 29:282.e1-282.e9. [PMID: 36592719 PMCID: PMC11284894 DOI: 10.1016/j.jtct.2022.12.023] [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: 11/14/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/01/2023]
Abstract
Hematopoietic stem cell transplantation-associated thrombotic microangiopathy (HSCT-TMA) is a serious complication of the transplantation process that has been consistently associated with substantially greater morbidity and mortality compared with HSCT recipients who do not develop TMA. This study aimed to systematically review published signs and symptoms of HSCT-TMA and compare patients with HSCT-TMA and HSCT recipients who do not develop TMA. Publications were identified using multiple search term variations for stem cell transplantation that were entered into the PubMed, Embase, and CINAHL databases. Two reviewers screened references at the abstract level before reviewing full texts against inclusion and exclusion criteria using a PICOS-T framework. Complication proportions were grouped by organ class and then by complication type. Meta-analyses were conducted using a random-effects model in RevMan 5.4. After 2338 references were screened, a total of 30 studies were included in our analyses. The majority of studies (n = 23; 14 adult, 5 pediatric, 4 both) examined allogeneic transplantations only. Four studies examined autologous transplantation only (all pediatric), and 3 studies included both transplantation types (all pediatric). HSCT-TMA was associated with renal dysfunction (odds ratio [OR], 11.04 for adult, allogeneic and 7.35 for pediatric, all transplantations), renal failure (OR, 2.41 for adult and pediatric, allogeneic), renal replacement therapy (OR, 6.99 for pediatric, all transplantations and 60.85 for adult, allogeneic), and hypertension (OR, 5.44 for adult, allogeneic). HSCT-TMA was associated with respiratory failure (OR, 8.00 for adult and pediatric, allogeneic), pulmonary hypertension (OR, 9.86 for adult and pediatric, allogeneic), need for pleurocentesis (OR, 5.45 for pediatric, all transplantations), noninvasive ventilation (OR, 6.15 for pediatric, all transplantations), and invasive mechanical ventilation (OR, 5.18 for pediatric, all transplantations). Additionally, HSCT-TMA was associated with neurologic symptoms (OR, 2.28 for adult and pediatric, allogeneic), pericardial effusion (OR, 2.56 for adult and pediatric, allogeneic and 8.76 for pediatric, all transplantations), liver injury (OR, 3.87 for adult, allogeneic), infection (OR, 9.25 for adult, allogeneic; 2.06 for pediatric, all transplantations), gastrointestinal (GI) bleeding (OR, 7.78 for adult and pediatric, allogeneic), and acute graft-versus-host disease grade III-IV (OR, 3.29 for adult and pediatric, allogeneic). This study represents the first systematic review of HSCT-TMA signs and symptoms. Current diagnostic criteria systems involve laboratory markers for multiorgan dysfunction, including renal dysfunction, liver injury, and general tissue damage. Diagnostic criteria include neurologic symptoms, increased need for transfusions, and hypertension. This study identified additional associations with HSCT-TMA, including increased pulmonary hypertension, respiratory failure, fever, GI bleeding, and pericardial effusion. These symptoms might be included for evaluation in future diagnostic criteria and current practice.
Collapse
Affiliation(s)
- Christopher E Dandoy
- Division of Bone Marrow Transplantation and Immune Deficiency, Cancer and Blood Disease Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - Wan H Tsong
- Omeros Corporation, Health Economics and Outcomes Research, Medical Affairs, Seattle, Washington
| | - Kaushik Sarikonda
- BluePath Solutions, Strategic Health Economics and Outcomes Research, Los Angeles, California
| | - November McGarvey
- BluePath Solutions, Strategic Health Economics and Outcomes Research, Los Angeles, California
| | - Miguel-Angel Perales
- Department of Medicine, Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| |
Collapse
|
4
|
Guo M, Qi J, Hou Q, Li X, Han Y. Risk factors for transplant-associated thrombotic microangiopathy (TA-TMA): a systematic review and meta-analysis. Expert Rev Hematol 2023; 16:191-203. [PMID: 36588482 DOI: 10.1080/17474086.2023.2162501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Transplant-associated thrombotic microangiopathy (TA-TMA) is a severe hematopoietic stem cell transplantation complication with high mortality and a poor patient prognosis. The pathogenesis of TA-TMA is not yet clear. In previous studies, the conclusions of different centers remain controversial. We conducted a systematic review and meta-analysis of nine selected risk factors that might be associated with the onset of TA-TMA. MATERIALS AND METHODS PubMed databases were searched from their inception up to 15 September 2021, for relevant studies. The articles included unprocessed data related to one or more of the risk factors discussed in this meta-analysis, including recipient gender, donor type, graft source, pretreatment, infection, aGVHD, diagnosis, total body irradiation (TBI), and CMV infection. The outcome is the incidence rate (IR) of TA-TMA. RESULTS AND CONCLUSIONS According to the sixteen articles included, risk factors included in this Meta-analysis included gender, unrelated donor source (95% CI: 1.29-2.01), graft source from peripheral blood stem cell (PBSC)(95% CI: 0.48-0.97), RIC/NMA, class II-IV aGVHD (95% CI: 2.22-4.78), nonmalignant disease, TBI. However, inconsistent diagnostic criteria for TA-TMA and the limited number of studies have an impact on the results of the study. More prospective cohort studies and More accurate diagnostic criteria are needed.
Collapse
Affiliation(s)
- Mengting Guo
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Jiaqian Qi
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Qixiu Hou
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Xueqian Li
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Yue Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China.,State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, China
| |
Collapse
|
5
|
Van Benschoten V, Roy C, Gupta R, Ouellette L, Hingorani S, Li A. Incidence and risk factors of transplant-associated thrombotic microangiopathy (TA-TMA): a systematic review and meta-analysis. Transplant Cell Ther 2022; 28:266.e1-266.e8. [PMID: 35042011 DOI: 10.1016/j.jtct.2022.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Transplant-associated thrombotic microangiopathy (TA-TMA) is an increasingly recognized post-transplant complication, yet the overall incidence of the disease remains debated. OBJECTIVES To determine the pooled incidence of TA-TMA in a systematic review of literature and to identify consistent risk factors. STUDY DESIGN We performed a systematic review using Medline, Embase, and CENTRAL databases to identify cohort studies that reported incidence of and risk factors for TA-TMA from 2004 to 2020. We conducted a meta-analysis of proportion to estimate the pooled incidence of TA-TMA using a random-effects model. We assessed moderators of heterogeneity through subgroup analysis, risk of bias through ROBINS-I, and publication bias through funnel plot. RESULTS Among 21 cohort studies with 36,163 adult and pediatric patients that underwent allogeneic transplant, the pooled incidence of TA-TMA was 12% (95% CI 9-16). The diagnostic criteria used to define the disease was the most significant contributor identified to the high inter-study heterogeneity (I2 98%). Studies using provider/clinician diagnosis instead of laboratory diagnosis reported the lowest incidence at 3%. The most salient risk factor for TA-TMA reported in 14 studies was preceding acute graft-versus-host disease (GVHD). Other risk predictors described in 5 or more studies included preceding infection, prior transplant, mismatched donor, and myeloablative conditioning. CONCLUSION With a pooled incidence at 12% among a significantly heterogeneous population, TA-TMA is an important but relatively uncommon post-transplant complication. Given the divergence between laboratory-based and provider-based incidence, as well as the multitude of risk factors beyond acute GVHD, future studies should focus on risk stratifying the subset of TA-TMA patients who would benefit from therapeutic intervention.
Collapse
Affiliation(s)
| | - Cayla Roy
- School of Medicine, Baylor College of Medicine, Houston, TX
| | - Rohit Gupta
- School of Medicine, Baylor College of Medicine, Houston, TX
| | | | - Sangeeta Hingorani
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; Division of Nephrology, Seattle Children's Hospital, Seattle, WA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Ang Li
- Section of Hematology-Oncology, Department of Medicine, Baylor College of Medicine, Houston, TX.
| |
Collapse
|
6
|
A prognostic model (BATAP) with external validation for patients with transplant-associated thrombotic microangiopathy. Blood Adv 2021; 5:5479-5489. [PMID: 34507352 PMCID: PMC8714708 DOI: 10.1182/bloodadvances.2021004530] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/15/2021] [Indexed: 11/20/2022] Open
Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) is a potentially life-threatening complication following allogeneic hematopoietic stem cell transplantation (allo-HSCT). Information on markers for early prognostication remains limited, and no predictive tools for TA-TMA are available. We attempt to develop and validate a prognostic model for TA-TMA. A total of 507 patients who developed TA-TMA following allo-HSCT were retrospectively identified and separated into a derivation cohort and a validation cohort according to the time of transplantation to perform external temporal validation. Patient age (OR 2.371, 95% CI 1.264-4.445), anemia (OR 2.836, 95% CI 1.566-5.138), severe thrombocytopenia (OR 3.871, 95% CI 2.156-6.950), elevated total bilirubin (OR 2.716, 95% CI 1.489-4.955) and proteinuria (OR 2.289, 95% CI 1.257-4.168) were identified as independent prognostic factors for the 6-month outcome of TA-TMA. A risk score model termed BATAP (Bilirubin, Age, Thrombocytopenia, Anemia, Proteinuria) was then constructed according to the regression coefficients. The validated c-statistics were 0.816 (95% CI 0.766-0.867) and 0.756 (95% CI 0.696-0.817) in the internal and external validation, respectively. Calibration plots indicated that the model-predicted probabilities correlated well with the actual observed frequencies. This predictive model may facilitate the prognostication of TA-TMA and contribute to the early identification of high-risk patients.
Collapse
|
7
|
New insights into risk factors for transplant-associated thrombotic microangiopathy in pediatric HSCT. Blood Adv 2020; 4:2418-2429. [PMID: 32492158 PMCID: PMC7284098 DOI: 10.1182/bloodadvances.2019001315] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/16/2020] [Indexed: 12/27/2022] Open
Abstract
This study aimed to identify a risk profile for development of transplant-associated thrombotic microangiopathy (TA-TMA) in children undergoing hematopoietic stem cell transplantation (HSCT). Between 2013 and 2016, 439 children underwent 474 HSCTs at 2 supraregional United Kingdom centers. At a median of 153 days post-HSCT, TA-TMA occurred among 25 of 441 evaluable cases (5.6%) with no evidence of center variation. Sex, underlying disease, intensity of the conditioning, total body irradiation-based conditioning, the use of calcineurin inhibitors, venoocclusive disease, and viral reactivation did not influence the development of TA-TMA. Donor type: matched sibling donor/matched family donor vs matched unrelated donor vs mismatched unrelated donor/haplo-HSCT, showed a trend toward the development of TA-TMA in 1.8% vs 6.1% vs 8.3%, respectively. Presence of active comorbidity was associated with an increased risk for TA-TMA; 13% vs 3.7% in the absence of comorbidity. The risk of TA-TMA was threefold higher among patients who received >1 transplant. TA-TMA rates were significantly higher among patients with acute graft-versus-host disease (aGVHD) grades III to IV vs aGVHD grade 0 to II. On multivariate analysis, the presence of active comorbidity, >1 transplant, aGVHD grade III to IV were risk factors for TA-TMA (odds ratio [OR]: 5.1, 5.2, and 26.9; respectively), whereas the use of cyclosporine A/tacrolimus-based GVHD prophylaxis was not a risk factor for TA-TMA (OR: 0.3). Active comorbidity, subsequent transplant, and aGVHD grades III to IV were significant risk factors for TA-TMA. TA-TMA might represent a form of a vascular GVHD, and therefore, continuing control of aGVHD is important to prevent worsening of TA-TMA associated with GVHD.
Collapse
|
8
|
Epperla N, Li A, Logan B, Fretham C, Chhabra S, Aljurf M, Chee L, Copelan E, Freytes CO, Hematti P, Lazarus HM, Litzow M, Nishihori T, Olsson RF, Prestidge T, Saber W, Wirk B, Yared JA, Loren A, Pasquini M. Incidence, Risk Factors for and Outcomes of Transplant-Associated Thrombotic Microangiopathy. Br J Haematol 2020; 189:1171-1181. [PMID: 32124435 DOI: 10.1111/bjh.16457] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/01/2019] [Accepted: 12/04/2019] [Indexed: 12/14/2022]
Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) is a complication of allogeneic transplantation (allo-HCT). The incidence and risk factors associated with TA-TMA are not well known. A retrospective analysis from the Center for International Blood and Marrow Transplant Research (CIBMTR) was conducted including patients receiving allo-HCT between 2008 and 2016, with the primary objective of evaluating the incidence of TA-TMA. Secondary objectives included identification of risk factors associated with TA-TMA, and the impact of TA-TMA on overall survival and the need for renal replacement therapy (RRT). Among 23,665 allo-HCT recipients, the 3-year cumulative incidence of TA-TMA was 3%. Variables independently-associated with increased incidence of TA-TMA included female sex, prior autologous transplant, primary disease (acute lymphoblastic leukaemia and severe aplastic anaemia), donor type (mismatched or unrelated donor), conditioning intensity (myeloablative), GVHD prophylaxis (sirolimus + calcineurin inhibitor), pre-transplant kidney dysfunction and acute GVHD (time-varying effect). TA-TMA was associated with higher mortality (HR = 3·1, 95% Confidence Interval [CI] = 2·8-16·3) and RRT requirement (HR = 7·1, 95% CI = 5·7-311·6). This study provides epidemiologic data on TA-TMA and its impact on transplant outcomes. Increased awareness of the risk factors will enable providers to be vigilant of this uncommon but serious transplant complication. The results will also provide benchmarking for future study designs and comparisons.
Collapse
Affiliation(s)
- Narendranath Epperla
- Division of Hematology, Department of Medicine, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | - Ang Li
- University of Washington, Seattle, WA
| | - Brent Logan
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI.,Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI
| | - Caitrin Fretham
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Saurabh Chhabra
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Mahmoud Aljurf
- Department of Oncology, King Faisal Specialist Hospital Center & Research, Riyadh, Saudi Arabia
| | - Lynette Chee
- Royal Melbourne Hospital City Campus, Victoria, Australia
| | - Edward Copelan
- Levine Cancer Institute, Atrium Health, Carolinas HealthCare System, Charlotte, NC
| | | | - Peiman Hematti
- Division of Hematology/Oncology/Bone Marrow Transplantation, Department of Medicine, University of Wisconsin, Madison, WI
| | | | - Mark Litzow
- Division of Hematology and Transplant Center, Mayo Clinic Rochester, Rochester, MN
| | - Taiga Nishihori
- Department of Blood & Marrow Transplant and Cellular Immunotherapy (BMT CI), Moffitt Cancer Center, Tampa, FL
| | - Richard F Olsson
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm.,Centre for Clinical Research Sormland, Uppsala University, Uppsala, Sweden
| | - Tim Prestidge
- Blood and Cancer Centre, Starship Children's Hospital, Auckland, New Zealand
| | - Wael Saber
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Baldeep Wirk
- Division of Bone Marrow Transplant, Seattle Cancer Care Alliance, Seattle, WA
| | - Jean A Yared
- Blood & Marrow Transplantation Program, Division of Hematology/Oncology, Department of Medicine, Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD
| | - Alison Loren
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Marcelo Pasquini
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| |
Collapse
|
9
|
Donor Heme Oxygenase-1 Promoter Gene Polymorphism Predicts Survival after Unrelated Bone Marrow Transplantation for High-Risk Patients. Cancers (Basel) 2020; 12:cancers12020424. [PMID: 32059452 PMCID: PMC7072481 DOI: 10.3390/cancers12020424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 01/31/2020] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
Heme oxygenase-1 (HO-1), an intracellular enzyme that catalyzes the degradation of heme into biliverdin, free iron, and carbon monoxide, exerts anti-inflammatory and cytoprotective effects against endothelial cell injury. The HO-1 promoter gene has one important single-nucleotide polymorphism (SNP) rs2071746 (-413A>T) that is functional, and the A allele has been reported to be associated with higher HO-1 expression levels than the T allele. We investigated the influence of the HO-1 rs2071746 SNP on the transplant outcomes in 593 patients with hematological malignancies undergoing unrelated, human leukocyte antigen (HLA)-matched, T-cell-replete bone marrow transplantation (BMT) through the Japan Donor Marrow Program. In patients with high-risk diseases, the donor A/A or A/T genotype was associated with better 5 year overall survival (35% vs. 25%; p = 0.03) and 5 year disease-free survival (35% vs. 22%; p = 0.0072), compared to the donor T/T genotype. These effects were not observed in patients with low-risk diseases. The current findings therefore indicate that HO-1 rs2071746 genotyping could be useful for selecting donors and tailoring transplant strategies for patients with high-risk hematologic malignancies.
Collapse
|
10
|
Sakellari I, Gavriilaki E, Papagiannopoulos S, Gavriilaki M, Batsis I, Mallouri D, Vardi A, Constantinou V, Masmanidou M, Yannaki E, Smias C, Geroukis T, Kazis D, Kimiskidis V, Anagnostopoulos A. Neurological adverse events post allogeneic hematopoietic cell transplantation: major determinants of morbidity and mortality. J Neurol 2019; 266:1960-1972. [PMID: 31087160 DOI: 10.1007/s00415-019-09372-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Despite advances in the field, diagnosis and management of the wide spectrum of neurological events post allogeneic hematopoietic cell transplantation (alloHCT) remain challenging. Therefore, we investigated their incidence, diagnosis, management and long-term prognosis in alloHCT recipients. METHODS We retrospectively recorded data from consecutive alloHCT recipients with or without neurological complications in our center. RESULTS Among 758 alloHCT recipients, 127 (16.8%) presented with neurological complications. Complications developed in central nervous system (89.7%) during the late post-transplant period. Neurological adverse events included a wide spectrum of infectious and non-infectious etiologies. With a median follow-up of 11.4 months, incidence of chronic graft-versus-host disease (GVHD) was 52.8%, relapse mortality 48.6%, transplant-related mortality 39.1% and 5-year overall survival (OS) 25.8% in patients with neurological complications. Timing of appearance of neurological complications, early or late, was associated only with acute and chronic graft-versus-host-disease/GVHD. Independent pre-transplant risk factors of neurological complications in the multivariate model were unrelated or alternative donors, ALL diagnosis and non-myeloablative conditioning. In multivariate analysis of post-alloHCT events, favorable OS was independently associated with resolution of neurological syndromes, absence of chronic GVHD and sibling transplantation. In our cohort, 10-year OS was significantly lower in patients with neurological complications and independently associated with acute and chronic GVHD, relapse, fungal and bacterial infections and neurological complications. CONCLUSIONS Our large study with long-term follow-up highlights the wide spectrum of neurological complications in alloHCT. Accurate recognition is required for adequate management, a major determinant of survival. Thus, long-term increased awareness and collaboration between expert physicians is warranted.
Collapse
Affiliation(s)
- Ioanna Sakellari
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | - Eleni Gavriilaki
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | | | - Maria Gavriilaki
- School of Medicine, University Campus, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece.
| | - Ioannis Batsis
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | - Despina Mallouri
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | - Anna Vardi
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | | | - Marianna Masmanidou
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | - Evangelia Yannaki
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | - Christos Smias
- BMT Unit, Hematology Department, G. Papanicolaou Hospital, Thessaloníki, Greece
| | | | - Dimitrios Kazis
- 3rd Department of Neurology, Aristotle University of Thessaloniki, Thessaloníki, Greece
| | - Vasileios Kimiskidis
- School of Medicine, University Campus, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece.,Laboratory of Clinical Neurophysiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloníki, Greece
| | | |
Collapse
|
11
|
Dvorak CC, Higham C, Shimano KA. Transplant-Associated Thrombotic Microangiopathy in Pediatric Hematopoietic Cell Transplant Recipients: A Practical Approach to Diagnosis and Management. Front Pediatr 2019; 7:133. [PMID: 31024873 PMCID: PMC6465621 DOI: 10.3389/fped.2019.00133] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 03/21/2019] [Indexed: 01/04/2023] Open
Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) is an endothelial damage syndrome that is increasingly identified as a complication of both autologous and allogeneic hematopoietic cell transplantation (HCT) in children. If not promptly diagnosed and treated, TA-TMA can lead to significant morbidity (e.g., permanent renal injury) or mortality. However, as the recognition of the early stages of TA-TMA may be difficult, we propose a TA-TMA "triad" of hypertension, thrombocytopenia (or platelet transfusion refractoriness), and elevated lactate dehydrogenase (LDH). While not diagnostic, this triad should prompt further evaluation for TA-TMA. There is increased understanding of the risk factors for the development of TA-TMA, including those which are inherent (e.g., race, genetics), transplant approach-related (e.g., second HCT, use of HLA-mismatched donors), and related to post-transplant events (e.g., receipt of calcineurin inhibitors, development of graft-vs. -host-disease, or certain infections). This understanding should lead to enhanced screening for TA-TMA signs and symptoms in high-risk patients. The pathophysiology of TA-TMA is complex, resulting from a cycle of activation of endothelial cells to produce a pro-coagulant state, along with activation of antigen-presenting cells and lymphocytes, as well as activation of the complement cascade and microthrombi formation. This has led to the formulation of a "Three-Hit Hypothesis" in which patients with either an underlying predisposition to complement activation or pre-existing endothelial injury (Hit 1) undergo a toxic conditioning regimen causing endothelial injury (Hit 2), and then additional insults are triggered by medications, alloreactivity, infections, and/or antibodies (Hit 3). Understanding this cycle of injury permits the development of a specific TA-TMA treatment algorithm designed to treat both the triggers and the drivers of the endothelial injury. Finally, several intriguing approaches to TA-TMA prophylaxis have been identified. Future work on the development of a single diagnostic test with high specificity and sensitivity, and the development of a robust risk-scoring system, will further improve the management of this serious post-transplant complication.
Collapse
Affiliation(s)
- Christopher C Dvorak
- Division of Pediatric Allergy, Immunology, and Bone Marrow Transplant, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, United States
| | - Christine Higham
- Division of Pediatric Allergy, Immunology, and Bone Marrow Transplant, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, United States
| | - Kristin A Shimano
- Division of Pediatric Allergy, Immunology, and Bone Marrow Transplant, Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, United States
| |
Collapse
|
12
|
Li A, Wu Q, Davis C, Kirtane KS, Pham PD, Sorror ML, Lee SJ, Gopal AK, Dong JF, Garcia DA, Weiss NS, R Hingorani S. Transplant-Associated Thrombotic Microangiopathy Is a Multifactorial Disease Unresponsive to Immunosuppressant Withdrawal. Biol Blood Marrow Transplant 2018; 25:570-576. [PMID: 30940363 DOI: 10.1016/j.bbmt.2018.10.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 10/16/2018] [Indexed: 01/06/2023]
Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) after allogeneic hematopoietic cell transplantation (HCT) has not been well characterized in large population studies with clinically adjudicated cases. We performed a retrospective cohort study of adults who underwent allogeneic HCT between 2006 and 2015 to determine the incidence of and risk factors for TA-TMA and to describe its natural history and response to immunosuppressant withdrawal management. Among 2145 patients in this study, 192 developed TA-TMA with a cumulative incidence of 7.6% by 100days post-transplant. Independent pretransplant risk factors included the receipt of a second (or third) allogeneic HCT, HLA-mismatched donor, and myeloablative conditioning with or without total body irradiation; post-transplant risk factors included the antecedent development of acute graft-versus-host disease, diffuse alveolar hemorrhage, bacteremia, invasive aspergillosis, BK viremia, and higher sirolimus trough level. Among TA-TMA patients 27% achieved hematologic resolution and 57% remained alive as of 90days after diagnosis. Antecedent risk factors stratified patients into different survival groups, and immunosuppressant withdrawal alone did not improve patient outcomes. In conclusion, TA-TMA is a heterogenous disease that occurs after allogeneic transplantation. Management with immunosuppressant withdrawal does not impact patient outcomes. Until further evidence becomes available, the management of TA-TMA should focus on the treatment of underlying diseases.
Collapse
Affiliation(s)
- Ang Li
- Division of Hematology, University of Washington School of Medicine, Seattle, Washington.
| | - Qian Wu
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chris Davis
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Kedar S Kirtane
- Division of Hematology, University of Washington School of Medicine, Seattle, Washington
| | - Phuqui D Pham
- Division of Hematology, University of Washington School of Medicine, Seattle, Washington
| | - Mohamed L Sorror
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Division of Medical Oncology, University of Washington School of Medicine, Seattle, Washington
| | - Stephanie J Lee
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Division of Medical Oncology, University of Washington School of Medicine, Seattle, Washington
| | - Ajay K Gopal
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Division of Medical Oncology, University of Washington School of Medicine, Seattle, Washington
| | - Jing-Fei Dong
- Division of Hematology, University of Washington School of Medicine, Seattle, Washington; Bloodworks NW Research Institute, Seattle, Washington
| | - David A Garcia
- Division of Hematology, University of Washington School of Medicine, Seattle, Washington
| | - Noel S Weiss
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington
| | - Sangeeta R Hingorani
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington; Division of Nephrology, Seattle Children's Hospital, Seattle, Washington
| |
Collapse
|
13
|
Wanchoo R, Bayer RL, Bassil C, Jhaveri KD. Emerging Concepts in Hematopoietic Stem Cell Transplantation-Associated Renal Thrombotic Microangiopathy and Prospects for New Treatments. Am J Kidney Dis 2018; 72:857-865. [PMID: 30146419 DOI: 10.1053/j.ajkd.2018.06.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 06/06/2018] [Indexed: 12/14/2022]
Abstract
Thrombotic microangiopathy associated with hematopoietic stem cell transplantation (HSCT-TMA) is a well-recognized complication of HSCT that has a high risk for death. Even in patients who survive, HSCT-TMA is associated with long-term morbidity and chronic organ injury. HSCT-TMA is a multisystem disease that often affects the kidneys. Renal manifestations of HSCT-TMA include reduced glomerular filtration rate, proteinuria, and hypertension. Understanding of the pathophysiology of HSCT-TMA has expanded in the last decade. Endothelial injury plays a major role. Recent studies also suggest involvement of complement activation. HSCT-TMA has also been considered by some to be an endothelial variant of graft-versus-host disease. Understanding the pathophysiology of HSCT-TMA and its association with activation of the complement system may aid in developing novel therapeutic options. In this review, we summarize current knowledge focusing on epidemiology and prognosis, evidence of complement activation, and endothelial injury; the possible link to graft-versus-host disease; and treatment options for HSCT-TMA.
Collapse
Affiliation(s)
- Rimda Wanchoo
- Division of Kidney Diseases and Hypertension, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY.
| | - Ruthee L Bayer
- Division of Hematology and Oncology and the Northwell Cancer Institute, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| | - Claude Bassil
- Division of Nephrology and Hypertension, University of South Florida, Tampa, FL; Renal Service, H. Lee Moffitt Center, Tampa, FL
| | - Kenar D Jhaveri
- Division of Kidney Diseases and Hypertension, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| |
Collapse
|
14
|
Gavriilaki E, Sakellari I, Batsis I, Mallouri D, Bousiou Z, Vardi A, Yannaki E, Constantinou V, Tsompanakou A, Vadikoliou C, Kaloyannidis P, Bamihas G, Anagnostopoulos A. Transplant-associated thrombotic microangiopathy: Incidence, prognostic factors, morbidity, and mortality in allogeneic hematopoietic cell transplantation. Clin Transplant 2018; 32:e13371. [DOI: 10.1111/ctr.13371] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 07/20/2018] [Accepted: 07/29/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Eleni Gavriilaki
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Ioanna Sakellari
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Ioannis Batsis
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Despina Mallouri
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Zoi Bousiou
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Anna Vardi
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | - Evangelia Yannaki
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | | | - Aliki Tsompanakou
- Hematology Department - BMT Unit; G. Papanicolaou Hospital; Thessaloniki Greece
| | | | | | - Gerasimos Bamihas
- Nephrology Department; G. Papanicolaou Hospital; Thessaloniki Greece
| | | |
Collapse
|
15
|
Seaby EG, Gilbert RD. Thrombotic microangiopathy following haematopoietic stem cell transplant. Pediatr Nephrol 2018; 33:1489-1500. [PMID: 28993886 PMCID: PMC6061668 DOI: 10.1007/s00467-017-3803-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 08/23/2017] [Accepted: 09/01/2017] [Indexed: 12/19/2022]
Abstract
Thrombotic microangiopathy is a potentially lethal complication of haematopoietic stem cell (bone marrow) transplantation. The pathophysiology is incompletely understood, although endothelial damage appears to be central. Platelet activation, neutrophil extracellular traps and complement activation appear to play key roles. Diagnosis may be difficult and universally accepted diagnostic criteria are not available. Treatment remains controversial. In some cases, withdrawal of calcineurin inhibitors is adequate. Rituximab and defibrotide also appear to have been used successfully. In severe cases, complement inhibitors such as eculizumab may play a valuable role. Further research is required to define the pathophysiology and determine both robust diagnostic criteria and the optimal treatment.
Collapse
Affiliation(s)
- Eleanor G. Seaby
- Human Genetics and Genomics Department, University of Southampton, Southampton, UK
| | - Rodney D. Gilbert
- Southampton Children’s Hospital and Faculty of Medicine, University of Southampton, Tremona Road, Southampton, SO16 6YD UK
| |
Collapse
|
16
|
Neumann T, Plis A, Weigel M, Stracke S, Friesecke S, Stecher SS, Schneidewind L, Busemann C, Schmidt CA, Krüger WH. No Relapse of Calcineurin Inhibitor-Associated Thrombotic Microangiopathy after Discontinuation of Eculizumab. Acta Haematol 2017; 138:194-197. [PMID: 29136616 DOI: 10.1159/000481724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 09/22/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Thomas Neumann
- Department of Internal Medicine C (Haematology and Oncology, Stem Cell Transplantation, Palliative Care), University Hospital Greifswald, Ernst-Moritz-Arndt University, Greifswald, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Khosla J, Yeh AC, Spitzer TR, Dey BR. Hematopoietic stem cell transplant-associated thrombotic microangiopathy: current paradigm and novel therapies. Bone Marrow Transplant 2017; 53:129-137. [DOI: 10.1038/bmt.2017.207] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/20/2017] [Accepted: 07/28/2017] [Indexed: 02/08/2023]
|
18
|
Labrador J, López-Corral L, Vazquez L, Sánchez-Guijo F, Guerrero C, Sánchez-Barba M, Lozano FS, Alberca I, del Cañizo MC, Caballero D, González-Porras JR. Incidence and risk factors for life-threatening bleeding after allogeneic stem cell transplant. Br J Haematol 2015; 169:719-25. [DOI: 10.1111/bjh.13344] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/05/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Jorge Labrador
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
- Servicio de Hematología; Hospital Universitario de Burgos; Burgos Spain
- Centro de Investigación del Cáncer; IBMC Departamento de Medicina; USAL; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Lucia López-Corral
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Lourdes Vazquez
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Fermin Sánchez-Guijo
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Carmen Guerrero
- Centro de Investigación del Cáncer; IBMC Departamento de Medicina; USAL; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | | | - Francisco S. Lozano
- Servicio de Angiología y Cirugía Vascular; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Ignacio Alberca
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - María C. del Cañizo
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
- Centro de Investigación del Cáncer; IBMC Departamento de Medicina; USAL; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Dolores Caballero
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| | - Jose R. González-Porras
- Servicio de Hematología; Hospital Universitario de Salamanca; Instituto de Investigación Biomédica de Salamanca (IBSAL); Salamanca Spain
| |
Collapse
|
19
|
Remission of microangiopathy in transplanted thalassemic child. Indian J Hematol Blood Transfus 2014; 30:356-8. [PMID: 25332618 DOI: 10.1007/s12288-014-0404-2] [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: 01/23/2014] [Accepted: 05/11/2014] [Indexed: 10/25/2022] Open
Abstract
Transplant associated thrombotic microangiopathy is a severe complication of Hematopoeitic stem cell transplantation. Although there is agreement in terms of diagnostic criteria, treatment options are not clarified yet. We present a patient aged 2.6 years who developed transplant associated thrombotic microangiopathy after allogeneic bone marrow transplantation and to discuss both risk factors and possible spontaneous remission of transplant associated thrombotic microangiopathy.
Collapse
|
20
|
Risk factors for thrombotic microangiopathy in allogeneic hematopoietic stem cell recipients receiving GVHD prophylaxis with tacrolimus plus MTX or sirolimus. Bone Marrow Transplant 2014; 49:684-90. [PMID: 24566710 DOI: 10.1038/bmt.2014.17] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 12/16/2013] [Accepted: 12/20/2013] [Indexed: 11/09/2022]
Abstract
Transplantation-associated thrombotic microangiopathy (TA-TMA) is a feared complication of allogeneic hematopoietic SCT (HSCT) owing to its high mortality rate. The use of calcineurin inhibitors or sirolimus (SIR) for GVHD prophylaxis has been suggested as a potential risk factor. However, the impact of tacrolimus (TAC) and SIR combinations on the increased risk of TA-TMA is currently not well defined. We retrospectively analyzed the incidence of TA-TMA in 102 allogeneic HSCT recipients who consecutively received TAC plus SIR (TAC/SIR) (n=68) or plus MTX (TAC/MTX)±ATG (n=34) for GVHD prophylaxis. No significant differences were observed in the incidence of TA-TMA between patients receiving TAC/SIR vs TAC/MTX±ATG (7.4% vs 8.8%, P=0.8). Only grade III-IV acute GVHD, previous HSCT and serum levels of TAC >25 ng/mL were associated with a greater risk of TA-TMA. Patients developing TA-TMA have significantly poorer survival (P<0.001); however, TA-TMA ceased to be an independent prognostic factor when it was included in a multivariate model. In conclusion, the combination of TAC/SIR does not appear to pose a higher risk of TA-TMA. By contrast, we identified three different risk groups for developing TA-TMA.
Collapse
|
21
|
Singh N, McNeely J, Parikh S, Bhinder A, Rovin BH, Shidham G. Kidney complications of hematopoietic stem cell transplantation. Am J Kidney Dis 2013; 61:809-21. [PMID: 23291149 DOI: 10.1053/j.ajkd.2012.09.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 09/08/2012] [Indexed: 12/25/2022]
Abstract
Hematopoietic stem cell transplantation (HSCT) exposes a patient's kidneys to a unique combination of challenges, including high-dose radiation, anemia, chemotherapeutic agents, graft-versus-host disease, opportunistic infections, attenuated and altered immunologic responses, fluid and electrolyte imbalances, and extensive courses of antimicrobial agents. Since the inception of HSCT in the 1950s, there has been increasing interest in defining, determining, and managing the kidney complications that accompany this procedure. In this article, we review the common causes of acute kidney injury and chronic kidney disease that occur with HSCT, including HSCT-associated thrombotic microangiopathy, a distinct cause of chronic kidney disease with a multifactorial cause previously known as bone marrow transplant nephropathy or radiation nephropathy. Additionally, we review other kidney complications, including calcineurin inhibitor nephrotoxicity and chronic graft-versus-host disease-associated glomerulonephritis, that develop post-HSCT. Critically, due to its grave prognosis, it is important to identify HSCT-associated thrombotic microangiopathy early, as well as distinguish it from the other causes of chronic kidney disease.
Collapse
Affiliation(s)
- Neeraj Singh
- Department of Internal Medicine, Division of Nephrology, The Ohio State University College of Medicine and Public Health, Columbus, OH, USA.
| | | | | | | | | | | |
Collapse
|
22
|
Cho BS, Yahng SA, Lee SE, Eom KS, Kim YJ, Kim HJ, Lee S, Min CK, Cho SG, Kim DW, Lee JW, Min WS, Park CW. Validation of recently proposed consensus criteria for thrombotic microangiopathy after allogeneic hematopoietic stem-cell transplantation. Transplantation 2010; 90:918-26. [PMID: 20717073 DOI: 10.1097/tp.0b013e3181f24e8d] [Citation(s) in RCA: 185] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND The lack of an accepted definition of transplantation-associated thrombotic microangiopathy (TMA) has led the Blood and Marrow Transplants Clinical Trials Network (CTN) and International Working Group (IWG) to propose a definition for TMA with some differences. However, there have been few studies validating and comparing both newly proposed criteria for TMA. METHODS To validate recently proposed criteria for TMA by CTN and IWG, we analyzed 672 patients who underwent allogeneic stem-cell transplantation between January 2002 and December 2006. RESULTS The cumulative incidences of TMA by CTN and IWG were 6.1% and 2.5%, respectively. The cumulative incidence of overall TMA (O-TMA) including probable-TMA defined as meeting CTN criteria without renal or neurologic dysfunction, as well as TMA by CTN (definite-TMA), was 12.7%. Sixty-six percent of TMA by CTN did not have any degree of schistocytosis by IWG criteria (≥4%), and 18% of TMA by IWG criteria did not have renal or neurologic dysfunction. On multivariate analyses, probable-TMA as well as definite-TMA adversely affected the survival of a cohort including all patients. In patients with O-TMA, the degree of schistocytosis (≥4% or not) failed to show prognostic significance, whereas renal involvement was a significant prognostic factor associated with poor survival. CONCLUSIONS Both proposed consensus criteria have major pitfalls in their use as uniformly accepted diagnostic criteria for TMA. The use of O-TMA as a broad definition for TMA and the grading system by the presence of renal involvement may be a counterproposal for future trials.
Collapse
Affiliation(s)
- Byung-Sik Cho
- Department of Internal Medicine, Catholic Blood and Marrow Transplantation Center, Seoul, Korea
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Thrombotic microangiopathy in haematopoietic cell transplantation: an update. Mediterr J Hematol Infect Dis 2010; 2:e2010033. [PMID: 21776339 PMCID: PMC3134219 DOI: 10.4084/mjhid.2010.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2010] [Accepted: 10/29/2010] [Indexed: 12/17/2022] Open
Abstract
Allogeneic hematopoietic cell transplantation (HCT) represents a vital procedure for patients with various hematologic conditions. Despite advances in the field, HCT carries significant morbidity and mortality. A rare but potentially devastating complication is transplantation-associated thrombotic microangiopathy (TA-TMA). In contrast to idiopathic TTP, whose etiology is attributed to deficient activity of ADAMTS13, (a member of the A Disintegrin And Metalloprotease with Thrombospondin 1 repeats family of metalloproteases), patients with TA-TMA have > 5% ADAMTS13 activity. Pathophysiologic mechanisms associated with TA-TMA, include loss of endothelial cell integrity induced by intensive conditioning regimens, immunosuppressive therapy, irradiation, infections and graft-versus-host (GVHD) disease. The reported incidence of TA-TMA ranges from 0.5% to 75%, reflecting the difficulty of accurate diagnosis in these patients. Two different groups have proposed consensus definitions for TA-TMA, yet they fail to distinguish the primary syndrome from secondary causes such as infections or medication exposure. Despite treatment, mortality rate in TA-TMA ranges between 60% to 90%. The treatment strategies for TA-TMA remain challenging. Calcineurin inhibitors should be discontinued and replaced with alternative immunosuppressive agents. Daclizumab, a humanized monoclonal anti-CD25 antibody, has shown promising results in the treatment of TA-TMA. Rituximab or the addition of defibrotide, have been reported to induce remission in this patient population. In general, plasma exchange is not recommended.
Collapse
|
24
|
Long-term disease-free survival after nonmyeloablative cyclophosphamide/fludarabine conditioning and related/unrelated allotransplantation for acute myeloid leukemia/myelodysplasia. Bone Marrow Transplant 2010; 45:1300-8. [DOI: 10.1038/bmt.2009.348] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
25
|
Willems E, Baron F, Seidel L, Frère P, Fillet G, Beguin Y. Comparison of thrombotic microangiopathy after allogeneic hematopoietic cell transplantation with high-dose or nonmyeloablative conditioning. Bone Marrow Transplant 2009; 45:689-93. [DOI: 10.1038/bmt.2009.230] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
26
|
Choi CM, Schmaier AH, Snell MR, Lazarus HM. Thrombotic microangiopathy in haematopoietic stem cell transplantation: diagnosis and treatment. Drugs 2009; 69:183-98. [PMID: 19228075 DOI: 10.2165/00003495-200969020-00004] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Each year in the US, more than 10 000 patients benefit from allogeneic haematopoietic stem cell transplantation (HSCT), a modality that offers an excellent chance of eradicating malignancy but confers a higher risk of treatment-related mortality. An uncommon but devastating consequence of HSCT is transplantation-associated thrombotic microangiopathy (TA-TMA). The incidence of TA-TMA ranges from 0.5% to 76%, with a mortality rate of 60-90% despite treatment. Although there appears to be a consistent treatment approach to idiopathic thrombotic thrombocytopenic purpura (TTP) using plasma exchange, corticosteroids and rituximab, the treatment strategies for TA-TMA are perplexing, in part, because the literature regarding this complex condition does not provide true consensus for incidence, aetiology, diagnostic criteria, classification and optimal therapy. The classic definition of idiopathic TTP includes schistocytes on the peripheral blood smear, thrombocytopenia and increased serum lactate dehydrogenase. Classic idiopathic TTP has been attributed to deficient activity of the metalloproteinase responsible for cleaving ultra-large von Willebrand factor multimers. This protease is a member of the 'a disintegrin and metalloprotease with thrombospondin type 1 motif' family and is subsequently named ADAMTS-13. Severely deficient ADAMTS-13 activity (<5% of normal) is associated with idiopathic TTP in 33-100% of patients. In constrast to the pathophysiology of idiopathic TTP, patients with TA-TMA have >5% ADAMTS-13 serum activity. These data may explain why plasma exchange, a standard treatment modality for idiopathic TTP that restores ADAMTS-13 activity, is not effective in TA-TMA. TA-TMA has a multifactorial aetiology of endothelial damage induced by intensive conditioning therapy, irradiation, immunosuppressants, infection and graft-versus-host disease. Treatment consists of substituting calcineurin inhibitors with an alternative immunosuppressive agent that possesses another mode of action. One candidate may be daclizumab, especially in those with mild to moderate TMA. Rituximab therapy or the addition of defibrotide may also be beneficial. In general, plasma exchange is not recommended.
Collapse
Affiliation(s)
- Cecilia M Choi
- Department of Medicine, Division of Hematology/Oncology, University Hospitals Case Medical Center, Cleveland, Ohio, USA
| | | | | | | |
Collapse
|
27
|
Inamoto Y, Ito M, Suzuki R, Nishida T, Iida H, Kohno A, Sawa M, Murata M, Nishiwaki S, Oba T, Yanada M, Naoe T, Ichihashi R, Fujino M, Yamaguchi T, Morishita Y, Hirabayashi N, Kodera Y, Miyamura K. Clinicopathological manifestations and treatment of intestinal transplant-associated microangiopathy. Bone Marrow Transplant 2009; 44:43-9. [PMID: 19139727 DOI: 10.1038/bmt.2008.419] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Intestinal transplant-associated microangiopathy (i-TAM) is an important complication after allogeneic hematopoietic SCT. From 1997 to 2006, 87 of 886 patients with diarrhea after transplantation received colonoscopic biopsy. i-TAM, GVHD and CMV colitis were diagnosed histopathologically. The median duration from transplantation to the onset of diarrhea was 32 days (range: 9-130 days) and that from the onset of diarrhea to biopsy was 12 days (range: 0-74 days). The median maximal amount of diarrhea was 2 l/day (range: 130-5600 ml/day). Histopathological diagnosis included i-TAM (n=80), GVHD (n=26), CMV colitis (n=17) and nonspecific findings (n=2) with overlapping. Among 80 patients with i-TAM, abdominal pain was a major symptom, and only 11 patients fulfilled the proposed criteria for systemic TAM. Non-relapse mortality (NRM) among patients without resolution of diarrhea was 72% and i-TAM comprised 57% of NRM. NRM was 25% among patients without intensified immunosuppression, but was 52, 79 and 100% among those with intensified immunosuppression before diarrhea, after diarrhea, and before and after diarrhea, respectively. In conclusion, i-TAM is a major complication presenting massive refractory diarrhea and abdominal pain, which causes NRM. Avoiding intensified immunosuppression that damages vascular endothelium until the resolution of i-TAM may improve transplant outcome.
Collapse
Affiliation(s)
- Y Inamoto
- Department of Hematology, Japanese Red Cross Nagoya First Hospital, Nagoya 466-8560, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Tichelli A, Gratwohl A. Vascular endothelium as 'novel' target of graft-versus-host disease. Best Pract Res Clin Haematol 2008; 21:139-48. [PMID: 18503982 DOI: 10.1016/j.beha.2008.02.002] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
There is increasing evidence of the existence of an endothelial form of graft-versus-host disease (GvHD). The early endothelial injury syndromes - transplant-associated microangiopathy (TAM), veno-occlusive disease (VOD) of the liver, diffuse alveolar hemorrhage, engraftment syndrome, and capillary leak syndrome - all share common features with acute GvHD. They are more likely to occur after allogeneic hematopoietic stem-cell transplantation (HCT), in unrelated transplantation, or with non-T-cell-depleted grafts. In addition, acute GvHD is a risk factor for all these endothelial syndromes. Chronic GvHD leads to a rarefaction of microvessels caused by the infiltration of alloreactive cytotoxic T lymphocytes. Furthermore, late cardiovascular accidents are more likely to occur in patients treated with allogeneic than autologous HCT, suggesting that an immunological mechanism is involved in the development of atherosclerosis. Finally, biomarkers of endothelial injury show a close relationship with GvHD. These data support the notion that early endothelial damage syndromes, atherosclerosis, and vascular endothelial GvHD share a common denominator in patients treated with allogeneic HCT.
Collapse
Affiliation(s)
- André Tichelli
- Department of Hematology, University Hospital, Basel, Switzerland.
| | | |
Collapse
|
29
|
Endothelial Injury, an Intriguing Effect of Methotrexate and Cyclophosphamide During Hematopoietic Stem Cell Transplantation in Mice. Transplant Proc 2008; 40:2670-3. [DOI: 10.1016/j.transproceed.2008.06.038] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
30
|
Batts ED, Lazarus HM. Diagnosis and treatment of transplantation-associated thrombotic microangiopathy: real progress or are we still waiting? Bone Marrow Transplant 2007; 40:709-19. [PMID: 17603513 DOI: 10.1038/sj.bmt.1705758] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transplantation-associated thrombotic microangiopathy (TA-TMA) is an infrequent but devastating syndrome that occurs in allogeneic hematopoietic stem cell transplant recipients, and is associated with a variety of transplantation-related factors, including conditioning regimens, immunosuppressive agents, GVHD and opportunistic infections. Progress in managing this condition has been hampered by lack of a consensus definition and poor understanding of the pathophysiology of the disorder. Two different groups recently have proposed consensus definitions, yet they fail to distinguish the primary syndrome from the secondary causes, such as a variety of infections, medication exposure or other conditions. Increasing evidence suggests that TA-TMA is a multifactorial disorder that is distinct from thrombotic thrombocytopenic purpura (TTP), and likely represents the final common pathway of a number of endothelial cell insults. TA-TMA responds poorly to conventional treatment for TTP, including plasma exchange, but newer agents, including daclizumab and defibrotide show promise. In addition, other agents known to modify endothelial responses to injury, including statins, prostacyclin analogues, endothelin-receptor antagonists and free radical scavengers, may lead to improved outcomes for patients affected by this disorder.
Collapse
Affiliation(s)
- E D Batts
- Department of Medicine, Case Medical Center, University Hospitals of Cleveland, Cleveland, OH 44106, USA
| | | |
Collapse
|
31
|
Worel N, Greinix HT, Leitner G, Mitterbauer M, Rabitsch W, Rosenmayr A, Höcker P, Kalhs P. ABO-incompatible allogeneic hematopoietic stem cell transplantation following reduced-intensity conditioning: Close association with transplant-associated microangiopathy. Transfus Apher Sci 2007; 36:297-304. [PMID: 17569587 DOI: 10.1016/j.transci.2007.03.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Accepted: 03/20/2007] [Indexed: 10/23/2022]
Abstract
Transplant-associated microangiopathy (TAM) is a severe complication following allogeneic hematopoietic stem cell transplantation (HSCT) even after reduced-intensity conditioning (RIC). Data on 112 patients following RIC were analyzed with respect to TAM according to the ASBMT and risk factors, response to well-defined therapy and outcome were determined. TAM occurred in 11 of 112 patients. Univariate analysis determined acute graft-versus-host disease and ABO-incompatibility as risk factors for TAM. Treatment consisted of withdrawal of calcineurin inhibitors and plasma exchange (PE). Response to PE was 64%. PE seems to be an effective therapeutic option that should be assessed in larger patient cohorts.
Collapse
Affiliation(s)
- Nina Worel
- Department of Blood Group Serology and Transfusion Medicine, Bone Marrow Transplantation, Medical University of Vienna, Waehringer, Guertel 18 - 20, A-1090 Vienna, Austria.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Allan DS, Dubé P, Roy J, Busque L, Roy DC. Endothelial-like Vascular Progenitor Cells (VPCs) from Allogeneic and Autologous Donors: Mobilization Features Distinct from Hematopoietic Progenitors. Biol Blood Marrow Transplant 2007; 13:433-9. [PMID: 17382249 DOI: 10.1016/j.bbmt.2006.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2006] [Accepted: 11/12/2006] [Indexed: 12/27/2022]
Abstract
Endothelial-like progenitor cells circulate in the peripheral blood (PB) and can be enumerated using cell culture-based progenitor assays. These circulating vascular progenitor cells (VPCs) are implicated in new vessel formation and regenerative potential in several animal and human models of tissue injury. Given the emerging role of VPCs in regenerative processes and the limited information on the availability of such progenitor cells, we sought to determine baseline circulating VPC levels in healthy allogeneic donors and autologous hematopoietic transplant patients. VPC numbers were also measured in peripheral blood stem cell (PBSC) grafts from both graft types. Immunohistochemistry revealed that VPC clusters obtained under our culture conditions were CD45(+) and acquired endothelial features (CD31 and vascular endothelial-cadherin) in vitro upon angiogenic stimulation and gradually lost monocytic surface markers (CD14). Before PBSC mobilization, VPCs levels varied substantially in healthy donors and were markedly lower in patients with hematologic malignancies compared with healthy allogeneic donors with 27 +/- 15 versus 99 +/- 21 VPCs/mL (mean +/- SEM), respectively (P = .001). In patients undergoing stem cell mobilization, VPCs in the PB increased from 7 +/- 2 on day 0 to 51 +/- 9 by day 7 of mobilization (P = .05), representing a median fold increase of 8.9 (range, 3.0-29.8). Although autologous transplant patients underwent more intensive mobilization, VPCs were higher in allogeneic (7.2 +/- 1.4 x 10(3)/kg) than in autologous (2.6 +/- 1.5 x 10(3)/kg) mobilized PB grafts (P = .045). To identify predictors of VPC content, graft VPCs were compared with levels of CD34(+) cells, total colony forming unit (CFU), or granulocyte-macrophage colony forming unit (GM-CFU). None of these hematopoietic progenitors correlated with VPC numbers in PBSC grafts (P = NS). However, PB monocyte levels were highly correlated with circulating VPC levels (r = 0.71, P < .0001). Thus, our analysis identified significant variability in VPCs at baseline and in PBSC grafts from healthy donors. Nevertheless, these donors remain a better source of VPCs than do autologous transplant patients. Importantly, VPC mobilization occurs independently of hematopoietic mobilization. In view of the potential role of VPCs in recovery from transplant-related tissue injury, angiogenic mobilization strategies that complement hematopoietic mobilization will need to be specifically designed.
Collapse
Affiliation(s)
- David S Allan
- Division of Hematology-Oncology, Hopital Maisonneuve-Rosemont, and Department of Medicine, University of Montreal, Montreal, Quebec, Canada
| | | | | | | | | |
Collapse
|
33
|
Owens DJ, Jung B. Duodenal thrombotic thrombocytopenic purpura. Clin Gastroenterol Hepatol 2007; 5:e15. [PMID: 17350895 DOI: 10.1016/j.cgh.2006.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
MESH Headings
- Adult
- Biopsy, Needle
- Bone Marrow Transplantation/adverse effects
- Bone Marrow Transplantation/methods
- Drug Therapy, Combination
- Duodenal Diseases/diagnosis
- Duodenal Diseases/drug therapy
- Duodenal Diseases/etiology
- Duodenoscopy/methods
- Female
- Follow-Up Studies
- Humans
- Leukemia, Myelomonocytic, Acute/diagnosis
- Leukemia, Myelomonocytic, Acute/therapy
- Purpura, Thrombotic Thrombocytopenic/diagnosis
- Purpura, Thrombotic Thrombocytopenic/drug therapy
- Purpura, Thrombotic Thrombocytopenic/etiology
- Risk Assessment
- Transplantation, Homologous
- Treatment Outcome
Collapse
Affiliation(s)
- David J Owens
- Division of Gastroenterology, University of California, San Diego, San Diego, California, USA
| | | |
Collapse
|
34
|
Okamoto H, Arii C, Shibata F, Toma T, Wada T, Inoue M, Tone Y, Kasahara Y, Koizumi S, Kamachi Y, Ishida Y, Inagaki J, Kato M, Morio T, Yachie A. Clonotypic analysis of T cell reconstitution after haematopoietic stem cell transplantation (HSCT) in patients with severe combined immunodeficiency. Clin Exp Immunol 2007; 148:450-60. [PMID: 17374134 PMCID: PMC1941932 DOI: 10.1111/j.1365-2249.2007.03378.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Haematopoietic stem cell transplantation (HSCT) is performed for treatment of a broad spectrum of illnesses. Reconstitution of an intact immune system is crucial after transplantation to avoid infectious complications, and above all, the establishment of T cell receptor (TCR) diversity is the most important goal in the procedure. Until recently, little has been known of the mechanism of T cell reconstitution in the very early period after HSCT. In this study, we analysed TCR repertoires sequentially in four patients with severe combined immunodeficiency (SCID) before and after HSCT. In all patients, the TCR repertoires were extremely abnormal before HSCT, whereas after transplantation there was progressive improvement in TCR diversity, based on analysis of the TCR Vbeta repertoire and CDR3 size distributions. Somewhat unexpectedly, there was a significant but transient expansion of TCR diversity 1 month after transplantation in all cases. Clonotypic analysis of TCRs performed in one case showed that many T cell clones shared identical CDR3 sequences at 1 month and that the shared fraction decreased progressively. These results indicate that early expansion of TCR diversity may reflect transient expansion of pre-existing mature T cells from the donor blood, independent of de novo T cell maturation through the thymus.
Collapse
Affiliation(s)
- H Okamoto
- Department of Pediatrics, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Oran B, Donato M, Aleman A, Hosing C, Korbling M, Detry MA, Wei C, Anderlini P, Popat U, Shpall E, Giralt S, Champlin RE. Transplant-associated microangiopathy in patients receiving tacrolimus following allogeneic stem cell transplantation: risk factors and response to treatment. Biol Blood Marrow Transplant 2007; 13:469-77. [PMID: 17382253 DOI: 10.1016/j.bbmt.2006.11.020] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2006] [Accepted: 11/28/2006] [Indexed: 11/24/2022]
Abstract
Transplant-associated microangiopathy (TAM) is a life-threatening complication after allogeneic HSCT, particularly with the use of calcineurin inhibitors as post-transplantation immunosuppressive therapy. We report our experience with TAM after HSCT with tacrolimus-based GVHD prophylaxis in a single-center study. Sixty-six of 1219 transplant recipients developed TAM with a cumulative incidence of 5.9%. Risk factors for TAM were female gender, lymphoid malignancy, receipt of a matched unrelated donor, and grade II-IV aGVHD. Most patients had infection and/or active GVHD at the diagnosis of TAM (82%). In the absence of renal dysfunction or encephalopathy, tacrolimus was generally continued, maintaining blood levels within the lower therapeutic range. Sixty-three patients were treated with plasma exchange. The cumulative incidence of response of TAM was 60%. Only 1 patient had a response of TAM without resolution of concomitant infections or GVHD. Six-month survivals were 0% and 50% for TAM nonresponders and responders, respectively. In conclusion, TAM is a common, life-threatening complication of allogeneic hematopoietic transplantation using tacrolimus prophylaxis. Control of TAM generally requires response of associated infections and GVHD. TMA response may occur despite continuation of tacrolimus treatment.
Collapse
Affiliation(s)
- Betul Oran
- Department of Blood and Marrow Transplantation, University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Bonin M, Pursche S, Bergeman T, Leopold T, Illmer T, Ehninger G, Schleyer E, Bornhauser M. F-ara-A pharmacokinetics during reduced-intensity conditioning therapy with fludarabine and busulfan. Bone Marrow Transplant 2007; 39:201-6. [PMID: 17211431 DOI: 10.1038/sj.bmt.1705565] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fludarabine is commonly used in combination with busulfan as part of conditioning regimens before allogeneic stem cell transplantation. So far, no data are available on busulfan-fludarabine drug interactions in transplant recipients. The pharmacokinetic (PK) properties of F-ara-A (9-beta-D-arabinosyl-2-fluoradenine) before and after application of busulfan were prospectively investigated in 16 patients with hematological malignancies. The conditioning regimen consisted of intravenous fludarabine 30 mg/m(2) over 30 min from day -6 to day -3, and oral busulfan given at 1 mg/kg every 6 h from day -5 to day -2. PK parameters of F-ara-A, derived from plasma and urine on day -6, -5, -4 and -3, were determined using high-performance liquid chromatography (HPLC). AUC, C(max), t(1/2), Cl(total) and V(SS) were 21.9 microMh, 3.5 microM, 13.0 h, 4.3 l/h/m(2), 60.0 l/m(2) on day -6 and 22.4 microMh, 3.5 microM, 14.0 h, 4.7 l/h/m(2), 69.0 l/m(2) on day -5 to (-2), respectively. Cl(renal) and the urine-recovery were 4.8 l/h, 43.7% of the fludarabine dose on day -6 and 3.9 l/h, 44.2% of the fludarabine dose on day -5 to (-2), respectively. There were no changes in PK parameters of fludarabine given before and after intake of busulfan. This implies that a clinically relevant busulfan-fludarabine drug interaction is unlikely.
Collapse
Affiliation(s)
- M Bonin
- Department of Haematology/Oncology, University Hospital Dresden, Dresden, Germany
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Uderzo C, Bonanomi S, Busca A, Renoldi M, Ferrari P, Iacobelli M, Morreale G, Lanino E, Annaloro C, Volpe AD, Alessandrino P, Longoni D, Locatelli F, Sangalli H, Rovelli A. Risk Factors and Severe Outcome in Thrombotic Microangiopathy After Allogeneic Hematopoietic Stem Cell Transplantation. Transplantation 2006; 82:638-44. [PMID: 16969286 DOI: 10.1097/01.tp.0000230373.82376.46] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Thrombotic microangiopathy (TMA) has been described as severe complication after hematopoietic stem cell transplantation (HSCT). The principal aim of this study was to focus the incidence and the outcome of TMA in the era of more complex HSCTs. METHODS We analyzed the role of some predicting factors for the incidence and the outcome of TMA after HSCT. We enrolled 539 consecutive patients (307 males, median age 31 years) undergoing HSCT from match or mismatch human leukocyte antigen family donor (314) or match/mismatch unrelated (195) and haploidentical donor (30) for malignant or nonmalignant diseases. TMA diagnosis was performed by homogeneous clinical and laboratory criteria. RESULTS Sixty-four of 539 patients presented TMA (11,87%) and the five-year cumulative incidence of TMA was 14% (HR=0.13). Fifty nine of 64 patients were affected by malignant and 5/64 by non-malignant diseases. On multivariate analysis, TMA occurrence was influenced by graft versus host disease >grade II (P=0.0001), donor type (P=0.029), gender (P=0.0233), total body irradiation based conditioning regimen (P=0.0041). Three factors for TMA outcome proved to be statistically significant by multivariate analysis: age (P=0.009), donor type (P=0.0187) and TMA index (P=0.029). The TMA mortality rate was 50%. The outcome was influenced by defibrotide (P=0.02 in univariate analysis). CONCLUSIONS The study underlines the possibility of finding out which patients are more prone to developing post-HSCT TMA, and identifies which risk factors are more frequently associated with a dismal outcome after TMA.
Collapse
Affiliation(s)
- Cornelio Uderzo
- Clinica Pediatrica dell'Università di Milano-Bicocca, Centro Trapianto di Midollo Osseo, Ospedale San Gerardo, Monza, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Nakamae H, Yamane T, Hasegawa T, Nakamae M, Terada Y, Hagihara K, Ohta K, Hino M. Risk factor analysis for thrombotic microangiopathy after reduced-intensity or myeloablative allogeneic hematopoietic stem cell transplantation. Am J Hematol 2006; 81:525-31. [PMID: 16755559 DOI: 10.1002/ajh.20648] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Thrombotic microangiopathy (TMA) impairs long-term survival after allogeneic hematopoietic stem cell transplantation (HSCT). As the allogeneic HSCT procedure has developed, addressing risk factors for TMA has become more complicated. The aim of this study was to investigate the impact of transplant-associated factors on TMA incidence in patients who have undergone HSCT in various settings. One hundred twenty-three consecutive allogeneic HSCT patients with hematologic diseases receiving myeloablative and reduced-intensity conditioning were evaluated retrospectively. Of 123 patients, 22 (17.9%) developed TMA after HSCT. Multivariate analysis showed the significance of GVHD grade II-IV, and the use of FK506 and the use of high-dose busulfan (Bu) (16 mg/kg) persisted. The hazard ratios of the use of FK506, the use of high-dose Bu (16 mg/kg), and GVHD grade II-IV for TMA were 8.7 (95% CI 2.0-37), 5.7 (95% CI 1.5-21), and 3.4 (95% CI 1.3-9.1), respectively. In the present study, reduced-intensity conditioning did not have an advantage over myeloablative conditioning in decreasing the incidence of TMA after HSCT. Our results also showed that high-dose Bu (16 mg/kg) for the conditioning and FK506 for the prophylaxis of GVHD might contribute more significantly to TMA onset after HSCT than other agents.
Collapse
Affiliation(s)
- Hirohisa Nakamae
- Clinical Hematology and Clinical Diagnostics, Graduate School of Medicine, Osaka City University, Osaka, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Mal H, Veyradier A, Brugière O, Da Silva D, Colombat M, Azoulay E, Benayoun L, Rondeau E, Dauriat G, Taillé C, Lesèche G, Castier Y, Fournier M. Thrombotic Microangiopathy With Acquired Deficiency in ADAMTS 13 Activity in Lung Transplant Recipients. Transplantation 2006; 81:1628-32. [PMID: 16794526 DOI: 10.1097/01.tp.0000226066.82066.fa] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Thrombotic microangiopathy may develop after solid organ transplantation, but it is usually not associated with severe deficiency in von Willebrand factor-cleaving metalloprotease (ADAMTS 13) activity. METHODS We present the cases of two lung transplant recipients who experienced a thrombotic microangiopathy associated with an acquired severe (<5%) deficiency in ADAMTS 13 activity. RESULTS A major feature of both cases was the occurrence of a diffuse alveolar hemorrhage. CONCLUSION Our two cases of lung transplant patients, with thrombotic microangiopathy related to an acquired ADAMTS 13 deficiency recipients, confirm that this mechanism may also be involved in the pathogenesis of thrombotic microangiopathy developing after solid organ transplantation. Therefore, we consider that ADAMTS 13 activity should be assessed on a systematic basis in this setting.
Collapse
Affiliation(s)
- Hervé Mal
- Groupe de Transplantation Pulmonaire, Hôpital Beaujon, Assistance Publique Hx de Paris, Clichy, France.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Narimatsu H, Kami M, Hara S, Matsumura T, Miyakoshi S, Kusumi E, Kakugawa Y, Kishi Y, Murashige N, Yuji K, Masuoka K, Yoneyama A, Wake A, Morinaga S, Kanda Y, Taniguchi S. Intestinal thrombotic microangiopathy following reduced-intensity umbilical cord blood transplantation. Bone Marrow Transplant 2005; 36:517-23. [PMID: 16025150 DOI: 10.1038/sj.bmt.1705099] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Thrombotic microangiopathy (TMA) is a significant complication after hematopoietic stem-cell transplantation (HSCT); however, there is little information on it following reduced-intensity cord blood transplantation (RI-CBT). We reviewed the medical records of 123 adult patients who received RI-CBT at Toranomon Hospital between January 2002 and August 2004. TMA was diagnosed in seven patients based on intestinal biopsy (n = 6) or autopsy results (n = 1). While these patients showed some clinical symptoms such as diarrhea and/or abdominal pain, mental status alterations or neurological disorders were not observed in any of them. Laboratory results were mostly normal at the onset of TMA; >2% fragmented erythrocytes (n = 1), <10 mg/dl haptoglobin (n = 1), and >200 IU/dl lactic dehydrogenase (LD) (n = 4). On endoscopic examination, TMA lesions, consisting of ulcers, erosions, and diffuse exfoliation, were distributed spottily from terminal ileum to rectum. Intestinal graft-versus-host disease (GVHD) and cytomegalovirus (CMV) colitis were confirmed in five and four patients, respectively. With therapeutic measures including supportive care (n = 4), fresh frozen plasma (n = 1), and a reduction of immunosuppressive agents (n = 1), TMA improved in four patients. The present study demonstrates that intestinal TMA is a significant complication after RI-CBT. Since conventional diagnostic criteria can overlook TMA, its diagnosis requires careful examination of the gastrointestinal tract using endoscopy with biopsy.
Collapse
Affiliation(s)
- H Narimatsu
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Martinez MT, Bucher C, Stussi G, Heim D, Buser A, Tsakiris DA, Tichelli A, Gratwohl A, Passweg JR. Transplant-associated microangiopathy (TAM) in recipients of allogeneic hematopoietic stem cell transplants. Bone Marrow Transplant 2005; 36:993-1000. [PMID: 16184183 DOI: 10.1038/sj.bmt.1705160] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We studied occurrence, risk factors and outcome of patients with transplant-associated microangiopathy (TAM) after allogeneic stem cell transplantation (HSCT). A total of 221 consecutive patients were transplanted between 1995 and 2002. TAM is defined as evidence of hemolysis and schistocytes in the first 100 days. Outcomes analyzed included TAM and overall survival. Of 221 patients, 68 had TAM. The cumulative incidence was 31 (25-38)% at 100 days. Patients with TAM had higher LDH, higher bilirubin, higher creatinine and more often neurologic symptoms. TAM was not associated with stem cell source, cyclosporine levels and was not more frequent in recent years. In multivariate analysis, risk factors for TAM included donor type, age, gender, ABO-incompatibility and acute graft-versus-host disease (aGvHD). In patients with TAM, 1-year survival was lower than in patients without TAM (27 +/- 18% for TAM with high schistocyte counts; 53 +/- 15% for TAM with low schistocyte counts; vs 78 +/- 7% in patients without TAM; P<0.0001). TAM was independently associated with mortality adjusting for donor type, age and aGvHD occurrence and severity. TAM is frequent after HSCT and is associated with mortality even after adjustment for aGvHD grade. Risk factors of TAM are similar to aGvHD. TAM may represent endothelial damage driven by donor-host interactions.
Collapse
Affiliation(s)
- M T Martinez
- Hematology Division, Basel University Hospitals, Switzerland
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Kornacker M, Luft T, Ho AD, Schaefer HJ. Thrombotic microangiopathy after combined autografting-allografting for multiple myeloma - report of three cases. Eur J Haematol 2005; 74:250-3. [PMID: 15693795 DOI: 10.1111/j.1600-0609.2004.00372.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thrombotic microangiopathy (TMA) has been described as a complication of bone marrow or stem cell transplantation. It is usually associated with high dose therapy for autologous transplantation or myeloablative conditioning in the allogeneic setting. Here we report three cases of TMA after reduced intensity conditioning and allogeneic peripheral blood stem cell transplantation. All three patients had high dose Melphalan therapy with autologous stem cell support preceding the allogeneic transplantation for several weeks, which may have contributed to endothelial damage and subsequent development of TMA.
Collapse
Affiliation(s)
- M Kornacker
- Department of Medicine V, University of Heidelberg, Heidelberg, Germany.
| | | | | | | |
Collapse
|