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https://www.readbyqxmd.com/read/28801815/plasma-levels-of-complement-activation-fragments-c3b-and-sc5b-9-significantly-increased-in-patients-with-thrombotic-microangiopathy-after-allogeneic-stem-cell-transplantation
#1
Jiaqian Qi, Jie Wang, Jia Chen, Jian Su, Yaqiong Tang, Xiaojin Wu, Xiao Ma, Feng Chen, Changgeng Ruan, X Long Zheng, Depei Wu, Yue Han
Transplantation-associated thrombotic microangiopathy (TA-TMA) is an uncommon but severe complication in patients undergoing allogeneic stem cell transplantation (allo-SCT). However, the mechanism is unclear. From 2011 to 2014, 20 patients with TA-TMA, 20 patients without, and 54 patients with various other complications, including veno occlusive disease (VOD), graft-versus-host disease (GVHD), and infection, were recruited in the study. Plasma vWF antigen (vWFAg), vWF activity (vWFAc), and ADAMTS13 activity were determined in these patients by ELISAs and FRETS-vWF73 assay, respectively...
August 11, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28759025/diagnosis-and-severity-criteria-for-sinusoidal-obstruction-syndrome-veno-occlusive-disease-in-pediatric-patients-a-new-classification-from-the-european-society-for-blood-and-marrow-transplantation
#2
S Corbacioglu, E Carreras, M Ansari, A Balduzzi, S Cesaro, J-H Dalle, F Dignan, B Gibson, T Guengoer, B Gruhn, A Lankester, F Locatelli, A Pagliuca, C Peters, P G Richardson, A S Schulz, P Sedlacek, J Stein, K-W Sykora, J Toporski, E Trigoso, K Vetteranta, J Wachowiak, E Wallhult, R Wynn, I Yaniv, A Yesilipek, M Mohty, P Bader
The advances in hematopoietic cell transplantation (HCT) over the last decade have led to a transplant-related mortality below 15%. Hepatic sinusoidal obstruction syndrome/veno-occlusive disease (SOS/VOD) is a life-threatening complication of HCT that belongs to a group of diseases increasingly identified as transplant-related, systemic endothelial diseases. In most cases, SOS/VOD resolves within weeks; however, severe SOS/VOD results in multi-organ dysfunction/failure with a mortality rate >80%. A timely diagnosis of SOS/VOD is of critical importance, given the availability of therapeutic options with favorable tolerability...
July 31, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28754544/consensus-report-by-pediatric-acute-lung-injury-and-sepsis-investigators-and-pediatric-blood-and-marrow-transplantation-consortium-joint-working-committees-supportive-care-guidelines-for-management-of-veno-occlusive-disease-in-children-and-adolescents-part
#3
REVIEW
Rajinder P S Bajwa, Kris M Mahadeo, Benjamin H Taragin, Christopher C Dvorak, Jennifer McArthur, Asumthia Jeyapalan, Christine N Duncan, Robert Tamburro, Alison Gehred, Leslie Lehman, Paul Richardson, Jeffery J Auletta, Ann E Woolfrey
Veno-occlusive disease (VOD) is a common and potentially fatal complication in children undergoing hematopoietic cell transplantation (HCT). It occurs in about one-third of all patients undergoing transplantation and is fatal in 50% of patients with severe disease. Early intervention and specific treatment with defibrotide are associated with improved outcomes. However, there is a lack of supportive care guidelines for management of the multiorgan dysfunction seen in most cases. There is high variability in the management of VOD, which may contribute to the increased morbidity and mortality...
July 25, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28687251/associations-between-acute-gvhd-related-biomarkers-and-endothelial-cell-activation-after-allogeneic-hematopoietic-stem-cell-transplantation
#4
Shosaku Nomura, Kazuyoshi Ishii, Shinya Fujita, Aya Nakaya, Atsushi Satake, Tomoki Ito
BACKGROUND: Hematopoietic stem cell transplantation (HSCT) can cause serious transplant-related complications such as graft-versus-host disease (GVHD). Acute GVHD (aGVHD) has been diagnosed by clinical manifestations, laboratory data and pathological effects until now, but recently the discovery of specific biomarkers such as suppression of tumorigenicity 2 (ST2), elafin and regenerating islet-derived 3α (REG3α) is challenging this approach. METHODS: We investigated the expression of aGVHD-related markers (regulated on activation normal T-cell expressed and secretes: RANTES, elafin, REG3α and ST2) and endothelial cell activation markers (soluble vascular cell adhesion molecule: sVCAM-1 and plasminogen activator inhibitor: PAI-1) in patients undergoing allogeneic HSCT...
July 4, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28644135/evaluation-of-thromboelastometry-parameters-as-predictive-markers-for-sinusoidal-obstruction-syndrome-in-patients-undergoing-allogeneic-stem-cell-transplantation-for-acute-leukaemia
#5
Joanna Rupa-Matysek, Lidia Gil, Ewelina Wojtasińska, Zuzanna Kanduła, Adam Nowicki, Magdalena Matuszak, Mieczysław Komarnicki
Hepatic sinusoidal obstruction syndrome (previously named veno-occlusive disease, SOS/VOD) is a serious complication of allogeneic stem cell transplantation (HSCT). Early identification of patients at risk of SOS/VOD may possibly improve the outcome and reduce mortality. Rotation thromboelastometry (ROTEM) is global assay allowing for the precise assessment of both bleeding and thrombotic conditions, however, its usefulness in patients undergoing HSCT for acute leukaemia has not been studied.We evaluated the thromboelastometry parameters in patients undergoing allogeneic HSCT for acute leukaemia to identify candidate biomarkers of SOS/VOD occurrence...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28592769/thrombotic-complications-after-hematopoietic-stem-cell-transplantation
#6
Shosaku Nomura
Hematopoietic stem cell transplantation (HSCT) involves some serious transplant-associated complications (TACs) or vascular disorders, such as veno-occlusive disease (VOD), thrombotic microangiopathy (TMA), and graft-versus-host disease (GVHD). VOD is related to a clinical syndrome characterized by tender hepatomegaly, jaundice, fluid retention, and unexplained weight gain. When TMA is described in patients who have undergone HSCT, it is often implied that the clinical diagnosis of TMA is similar to that of thrombotic thrombocytopenic purpura...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28460209/low-fixed-dose-defibrotide-in-management-of-hepatic-veno-occlusive-disease-post-stem-cell-transplantation
#7
Bhausaheb Bagal, Arun Chandrasekharan, Aliya Chougle, Navin Khattry
OBJECTIVE/BACKGROUND: Hepatic veno-occlusive disease (VOD) is well recognized potentially serious regimen-related toxicity seen after stem cell transplantation. Severe VOD is associated with poor long-term outcomes with very high mortality. Besides supportive care, only defibrotide has been found to be effective in the management of VOD. The recommended dose of defibrotide is 25mg/kg/d but there has been no classical dose finding study done for this drug. A higher dose of defibrotide is associated with increased risk of bleeding and this drug is prohibitively expensive...
April 25, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28456070/ponticulus-posticus-morphometric-analysis-and-its-anatomical-implications-for-occipito-cervical-fusion
#8
Myung Soo Song, Ho Jin Lee, Jong Tae Kim, Jung Hee Kim, Jae Taek Hong
OBJECTIVE: The purpose of this study was to evaluate the morphometric characteristics of ponticulus posticus (PP) and determine the impact of two promising high cervical operations (posterior arch to lateral mass screw fixation (PALMSF) and occipital condyle fixation (OCF)). PATIENTS AND METHODS: We evaluated retrospective data from a total of 2628 head and neck 3-dimensional CT-angiographies (3D-CTA) that did not have bony or vascular abnormalities. The PP anomaly cases were confirmed, then we measured vertebral artery groove height (VAGH), arch to vertebral artery distance (AVD) and posterior arch height (PAH) for PALMSF...
April 3, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28444784/earlier-defibrotide-initiation-post-diagnosis-of-veno-occlusive-disease-sinusoidal-obstruction-syndrome-improves-day-100-survival-following-haematopoietic-stem-cell-transplantation
#9
Paul G Richardson, Angela R Smith, Brandon M Triplett, Nancy A Kernan, Stephan A Grupp, Joseph H Antin, Leslie Lehmann, Maja Miloslavsky, Robin Hume, Alison L Hannah, Bijan Nejadnik, Robert J Soiffer
Hepatic veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) is a progressive, potentially fatal complication of conditioning for haematopoietic stem cell transplant (HSCT). The VOD/SOS pathophysiological cascade involves endothelial-cell activation and damage, and a prothrombotic-hypofibrinolytic state. Severe VOD/SOS (typically characterized by multi-organ dysfunction) may be associated with >80% mortality. Defibrotide is approved for treating severe hepatic VOD/SOS post-HSCT in the European Union, and for hepatic VOD/SOS with renal or pulmonary dysfunction post-HSCT in the United States...
April 26, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28426083/energetic-isomers-of-1-2-4-5-tetrazine-bis-1-2-4-triazoles-with-low-toxicity
#10
A Shlomovich, T Pechersky, A Cohen, Q L Yan, M Kosa, N Petrutik, N Tal, A Aizikovich, M Gozin
A series of nitrogen-rich "green" Energetic Materials (EMs), some with improved sensitivity, thermostability, and very low toxicity, were synthesized on the basis of 3,5-diamino-1,2,4-triazole (DAT) and 1,2,4,5-tetrazine building blocks. Since DAT contains several nucleophilic reactive sites, obtaining selective reactivity and specific isomeric products with 1,2,4,5-tetrazine precursors is a challenging task. We developed reaction conditions under which specific isomers could be prepared. On evaluating these compounds for their energetic properties, we found that N(5),N(5)'-(1,2,4,5-tetrazine-3,6-diyl)-bis(1H-1,2,4-triazole-3,5-diamine) 1 has very high thermostability (onset of decomposition temperature at 357 °C) and it is insensitive to impact (Im > 98 J), friction (>360 N) and electrostatic discharge (2512 mJ)...
May 9, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28398284/manifestations-and-management-of-veno-occlusive-disease-sinusoidal-obstruction-syndrome-in-the-era-of-contemporary-therapies
#11
REVIEW
Priti Tewari, Whitney Wallis, Partow Kebriaei
The concept of veno-occlusive disease (VOD), along with our understanding of it, has historically been and remains an evolving phenomenon. This review presents a broad view of VOD, also known as sinusoidal obstruction syndrome (SOS), including (1) traditional hematopoietic stem cell transplant-associated VOD/SOS, (2) late-onset VOD/SOS, (3) pulmonary VOD, and (4) VOD/SOS associated with chemotherapy only. Several VOD/SOS management modalities exist that include modes for both prophylaxis and treatment. An extensive review of the literature on monoclonal antibodies, both approved and pending approval by the US Food and Drug Administration, reveals that only a few have been associated with an increased risk for VOD/SOS...
February 2017: Clinical Advances in Hematology & Oncology: H&O
https://www.readbyqxmd.com/read/28379594/pyrrolizidine-alkaloids-enhance-alcohol-induced-hepatocytotoxicity-in-vitro-in-normal-human-hepatocytes
#12
M G Neuman, L B Cohen, V Steenkamp
OBJECTIVE: Herbal remedies containing pyrrilidozine alkaloids (PA)s can induce liver damage, including hepato-sinusoidal obstruction syndrome (HSOS) or veno-occlusive liver disease (VOD). Some individuals misusing alcohol consume also teas and/or herbal remedies containing PA. The interaction or additive toxicity of alcohol to PA toxicity needs to be addressed. The objectives of this study are 1) to review the scientific literature on the PA-induced liver toxicity; 2) identify possible mechanism(s) involved in PA-induced hepatocytotoxicity in the presence or absence of ethanol (EtOH) in vitro in normal human hepatocytes (NHH) in primary culture...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28368376/predictors-of-overall-survival-among-patients-treated-with-sirolimus-tacrolimus-vs-methotrexate-tacrolimus-for-gvhd-prevention
#13
F Khimani, J Kim, L Chen, E Dean, V Rizk, B Betts, T Nishihori, F Locke, A Mishra, L Perez, E Ayala, M Kharfan-Dabaja, M Nieder, H Fernandez, C Anasetti, J Pidala
Sirolimus (SIR)/tacrolimus (TAC) is an alternative to methotrexate (MTX)/TAC. However, rational selection among these GvHD prophylaxis approaches to optimize survival of individual patients is not possible based on current evidence. We compared SIR/TAC (n=293) to MTX/TAC (n=414). The primary objective was to identify unique predictors of overall survival (OS). Secondary objective was to compare acute and chronic GvHD, relapse, non-relapse mortality, thrombotic microangiopathy (TMA), hepatic veno-occlusive disease (VOD/SOS), and acute kidney injury...
April 3, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28359910/cost-effectiveness-of-defibrotide-in-the-prophylaxis-of-veno-occlusive-disease-after-pediatric-allogeneic-stem-cell-transplantation
#14
Herbert Pichler, Karolina Horner, Gernot Engstler, Ulrike Poetschger, Evgenia Glogova, Susanne Karlhuber, Manuel Martin, Werner Eibler, Volker Witt, Wolfgang Holter, Susanne Matthes-Martin
Veno-occlusive disease (VOD) remains a serious complication after allogeneic hematopoietic stem cell transplantation (HSCT). Prophylactic use of defibrotide (DF) might further reduce VOD rates but has no impact on the incidence of severe VOD or VOD-associated mortality. We investigated the cost-effectiveness of prophylactic DF according to the British Committee for Standards in Haematology/British Society for Blood and Marrow Transplantation guidelines in 348 children who underwent transplantation between 2001 and 2014 in our hospital, 138 of whom were at risk for VOD...
July 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28285079/defibrotide-for-patients-with-hepatic-veno-occlusive-disease-sinusoidal-obstruction-syndrome-interim-results-from-a-treatment-ind-study
#15
Paul G Richardson, Angela R Smith, Brandon M Triplett, Nancy A Kernan, Stephan A Grupp, Joseph H Antin, Leslie Lehmann, Tsiporah Shore, Massimo Iacobelli, Maja Miloslavsky, Robin Hume, Alison L Hannah, Bijan Nejadnik, Robert J Soiffer
Hepatic veno-occlusive disease, or sinusoidal obstruction syndrome (VOD/SOS), is a serious and potentially fatal complication of conditioning for hematopoietic stem cell transplantation (HSCT) or of chemotherapy regimens alone. Defibrotide is a complex mixture of single-stranded polydeoxyribonucleotides that is approved in the United States for treating hepatic VOD/SOS with renal or pulmonary dysfunction post-HSCT and in the European Union, Israel, and South Korea for treating severe hepatic VOD/SOS post-HSCT...
March 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28267081/the-diagnostic-value-of-hepatic-arterial-velocity-in-venoocclusive-disease-after-pediatric-hematopoietic-stem-cell-transplantation
#16
Nusabe Kaya, Fatih Erbey, Didem Atay, Arzu Akçay, Ceyhun Bozkurt, Gulyuz Ozturk
The aim of this study was to determine usefulness of measurements of maximal systolic velocity of the hepatic artery with Doppler ultrasonography in the diagnosis of venoocclusive disease (VOD) after hematopoietic stem cell transplantation. We prospectively obtained 5 sonograms per patient: pretransplantation, day +1, +7, +14, and +28 on 36 nonconsecutive children who underwent hematopoietic stem cell transplantation. We examined the hepatic artery, the portal, hepatic and splenic veins, the thickness of the gallbladder wall, the presence of ascites, and the liver and spleen size...
May 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28244636/ascitic-fluid-drainage-using-a-peritoneal-dialysis-catheter-to-prevent-and-treat-multi-organ-dysfunction-in-veno-occlusive-disease-in-children-undergoing-hematopoietic-stem-cell-transplantation
#17
Vijal Parmar, Malcolm Lewis, Mohan Shenoy, Denise Bonney, Robert Wynn
Veno-occlusive disease (VOD), or sinusoidal obstruction syndrome, is a well-recognised, serious complication associated with the chemotherapy conditioning therapy used in hematopoietic stem cell transplantation (HSCT). Fluid management is typically challenging in children with this condition. We describe effective early use of peritoneal dialysis catheters to drain extravascular, intra-abdominal fluid in children with VOD, allowing intravascular fluid administration to preserve renal perfusion and function, preventing multi-organ dysfunction...
September 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28193616/assessing-the-effectiveness-of-topical-betamethasone-to-treat-chronic-chilblains-a-randomised-clinical-trial-in-primary-care
#18
RANDOMIZED CONTROLLED TRIAL
Ibo H Souwer, Jacobus Hj Bor, Paul Smits, Antoine Lm Lagro-Janssen
BACKGROUND: GPs prescribe topical corticosteroids to patients with chronic chilblains despite poor evidence for their effectiveness. The authors of the current study therefore decided to assess the effectiveness of topical steroids in a primary care setting. AIM: To assess the effectiveness of topical application of betamethasone valerate 0.1% cream in patients with chronic chilblains. DESIGN AND SETTING: A placebo-controlled, double-blind, crossover, randomised clinical trial in a Dutch primary care setting...
March 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28128441/restrictive-versus-liberal-red-blood-cell-transfusion-strategies-for-people-with-haematological-malignancies-treated-with-intensive-chemotherapy-or-radiotherapy-or-both-with-or-without-haematopoietic-stem-cell-support
#19
REVIEW
Lise J Estcourt, Reem Malouf, Marialena Trivella, Dean A Fergusson, Sally Hopewell, Michael F Murphy
BACKGROUND: Many people diagnosed with haematological malignancies experience anaemia, and red blood cell (RBC) transfusion plays an essential supportive role in their management. Different strategies have been developed for RBC transfusions. A restrictive transfusion strategy seeks to maintain a lower haemoglobin level (usually between 70 g/L to 90 g/L) with a trigger for transfusion when the haemoglobin drops below 70 g/L), whereas a liberal transfusion strategy aims to maintain a higher haemoglobin (usually between 100 g/L to 120 g/L, with a threshold for transfusion when haemoglobin drops below 100 g/L)...
January 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28121342/clinical-applications-of-haploidentical-hematopoietic-stem-cell-transplantation-in-severe-aplastic-anemia
#20
P Zhang, K Feng, Y Xue, C-X Zhang, Y Wang, X-L Li
OBJECTIVE: The purpose of this study was to investigate the efficacy and safety of haploidentical allogeneic hemopoietic stem cell transplantation (allo-HSCT) in severe aplastic anemia (SAA) and prophylaxis of complications involved. PATIENTS AND METHODS: 8 patients with clinically diagnosed SAA (5 cases of SAA-I and 3 cases of SAA-II) were recruited, with the parents as the donors of hemopoietic stem cells. The conditioning regimen before HSCT included cyclophosphamide, fludarabine, pig anti-human lymphocyte immune globulin (p-ALG) and/or total body irradiation (TBI)...
January 2017: European Review for Medical and Pharmacological Sciences
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