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https://www.readbyqxmd.com/read/28690037/unacknowledged-adverse-transfusion-reactions-are-they-a-mine-to-dig
#1
J-Y Py, B Cabezon, T Sapey, T Jutant
OBJECTIVES: Haemovigilance has long tried to characterize and understand transfusion reactions in order to prevent them. Unacknowledged ones are now a minority but they question us. Are they the result of incomplete clinical setting and/or insufficient medical reasoning, or can they contain real new entities we have not yet understood? MATERIAL AND METHODS: Ten volunteer experts reviewed 30 recent unacknowledged cases. Their diagnostic propositions were compared with data issued from a five-year repository we have analysed in terms of statistical links between clinical signs and diagnoses...
July 6, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28683994/the-effects-of-steroids-on-coagulation-dysfunction-induced-by-cardiopulmonary-bypass-a-steroids-in-cardiac-surgery-sirs-trial-substudy
#2
Domenico Paparella, Alessandro Parolari, Crescenzia Rotunno, Jessica Vincent, Veronica Myasoedova, Pietro Guida, Micaela De Palo, Vito Margari, Philip J Devereaux, Andre Lamy, Francesco Alamanni, Salim Yusuf, Richard Whitlock
Cardiopulmonary bypass (CPB) surgery, despite heparin administration, elicits activation of coagulation system resulting in coagulopathy. Anti-inflammatory effects of steroid treatment have been demonstrated, but its effects on coagulation system are unknown. The primary objective of this study is to assess the effects of methylprednisolone on coagulation function by evaluating thrombin generation, fibrinolysis, and platelet activation in high-risk patients undergoing cardiac surgery with CPB. The Steroids In caRdiac Surgery study is a double-blind, randomized, controlled trial performed on 7507 patients worldwide who were randomized to receive either intravenous methylprednisolone, 250 mg at anesthetic induction and 250 mg at initiation of CPB (n = 3755), or placebo (n = 3752)...
April 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28675531/hot-and-bothered-management-and-outcomes-for-patients-with-febrile-nonhemolytic-transfusion-reactions
#3
EDITORIAL
Erica M Wood, Lucy C Fox
No abstract text is available yet for this article.
July 2017: Transfusion
https://www.readbyqxmd.com/read/28671343/inactivation-of-zika-virus-in-platelet-components-using-amotosalen-and-ultraviolet-a-illumination
#4
Felicia Santa Maria, Andrew Laughhunn, Marion C Lanteri, Maite Aubry, Didier Musso, Adonis Stassinopoulos
BACKGROUND: Concerned over the risk of Zika virus (ZIKV) transfusion transmission, public health agencies recommended the implementation of mitigation strategies for its prevention. Those strategies included the use of pathogen inactivation for the treatment of plasma and platelets. The efficacy of amotosalen/ultraviolet A to inactivate ZIKV in plasma had been previously demonstrated, and the efficacy of inactivation in platelets with the same technology was assumed. These studies quantify ZIKV inactivation in platelet components using amotosalen/ultraviolet A...
July 3, 2017: Transfusion
https://www.readbyqxmd.com/read/28671303/increased-complement-activation-during-platelet-storage
#5
Jian Chen, Michael Losos, Shangbin Yang, Junan Li, Haifeng Wu, Spero Cataland
BACKGROUND: It has been shown that platelet transfusion carries a higher incidence of transfusion-related adverse events than any other blood components, and prolonged platelet storage is associated with more transfusion reactions, most of which are considered to be inflammatory responses. However, the role of complement, which has very important proinflammatory activities, in the pathogenesis of platelet-related adverse events has not been fully understood. STUDY DESIGN AND METHODS: Three units of platelets collected by apheresis were stored on a platelet rotator with the temperature controlled between 22 and 24°C...
July 3, 2017: Transfusion
https://www.readbyqxmd.com/read/28671283/low-prevalence-of-hepatitis-c-virus-rna-in-blood-donors-with-anti-hepatitis-c-virus-reactivity-in-rwanda
#6
Theogene Twagirumugabe, Gatare Swaibu, Tomas Bergström, Timothy David Walker, Jean Bosco Gahutu, Heléne Norder
BACKGROUND: Hepatitis C virus (HCV) is the leading cause of severe liver disease worldwide and is highly endemic in Africa, where it often has nosocomial spread. Little is known on the HCV prevalence, risk for transfusion-transmitted HCV, and circulating genotypes in Rwanda. This study was performed to investigate the prevalence of anti-HCV among blood donors from all regions of the country and genetically characterize identified HCV strains. STUDY DESIGN AND METHODS: Data on anti-HCV reactivity for all 45,061 Rwandan blood donations during 2014 were compiled...
July 3, 2017: Transfusion
https://www.readbyqxmd.com/read/28670940/rare-%C3%AE-globin-gene-mutations-in-pakistan
#7
Ahsan Hussain, Suhaib Ahmed, Nadir Ali, Hamid S Mailk, Mariam Anees, Altaf H Chuahdry, Parvez Ahmed
The aim of this study was to analyze the rare β-thalassemia (β-thal) mutations in the Pakistani population. A total of 8716 unrelated Pakistani individuals having children with transfusion-dependent thalassemia were investigated by amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) for the previously reported common and rare β-thal mutations. Genomic sequencing of the β-globin gene and its immediate 5' and 3' flanking regions was done where no known mutation was found. Out of the 8716 individuals studied, 88 (1...
March 2017: Hemoglobin
https://www.readbyqxmd.com/read/28670860/transcriptomic-biomarkers-of-altered-erythropoiesis-to-detect-autologous-blood-transfusion
#8
Olivier Salamin, Jonathan Mignot, Tiia Kuuranne, Martial Saugy, Nicolas Leuenberger
Autologous blood transfusion is a powerful means to improve performance and remains one of the most challenging method to detect. Recent investigations have identified three candidate reticulocytes genes whose expression was significantly influenced by blood transfusion. Using quantitative reverse transcription polymerase chain reaction as alternative quantitative method, the present study supports that delta-aminolevulinate synthase 2 (ALAS2), carbonic anhydrase (CA1) and solute carrier family 4 member 1 (SLC4A1) genes are down-regulated post-transfusion...
July 3, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28669521/management-of-delayed-hemolytic-transfusion-reaction-in-sickle-cell-disease-prevention-diagnosis-treatment
#9
F Pirenne, P Bartolucci, A Habibi
Transfusion remains a key treatment of sickle cell disease complications. However, delayed hemolytic transfusion reaction, the most serious complication of transfusion, may be life-threatening if hyperhemolysis develops. This syndrome is generally underdiagnosed because its biological and clinical features resemble those of vaso-occlusive crisis, and red blood cell antibodies are frequently absent. Further transfusions may aggravate the symptoms, leading to severe multiple organ failure and death. It is therefore essential to prevent, diagnose and treat this syndrome efficiently...
June 29, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28662180/kai-1-and-kai-2-characterization-of-these-dog-erythrocyte-antigens-by-monoclonal-antibodies
#10
Jae Ho Lee, Urs Giger, Hee Young Kim
Dog Erythrocyte Antigens (DEA) have thus far been found by sensitizing dogs with canine allogeneic blood and are clinically important regarding blood transfusion incompatibilities, but remain poorly defined. The goals of this study were to discover and characterize two DEAs, named as Kai 1 and Kai 2. The monoclonal antibodies were produced by mouse hybridoma techniques and examined by ELISA isotyping, immunoblotting, and affinity chromatography. Canine blood samples were typed and the development of alloantibodies was examined in transfused dogs...
2017: PloS One
https://www.readbyqxmd.com/read/28659886/molecular-epidemiology-and-risk-factors-of-carbapenem-resistant-klebsiella-pneumoniae-infections-in-eastern-china
#11
Bing Zheng, Yingxin Dai, Yang Liu, Weiyang Shi, Erkuan Dai, Yichao Han, Dandan Zheng, Yuetian Yu, Min Li
Background: The increasing prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) poses an immediate threat to treatment worldwide. This retrospective study assessed the molecular epidemiology and determined the risk factors for and outcomes of CRKP infections in a general teaching hospital in Shanghai, China. Methods: From January 2013 to July 2015, 100 consecutive unique CRKP isolates isolated from hospitalized patients were collected. Isolates were screened for antibiotic resistance genes by polymerase chain reaction and molecular typing was performed by pulsed-field gel electrophoresis (PFGE)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28658782/unusually-detected-anti-m-antibody-presenting-as-cross-match-incompatibility-in-a-female-child-diagnosed-with-small-round-cell-tumour
#12
Sheetal Anand Chandak, Aruna Vishwanath Vanikar
MNS antigen system is one of the human blood group systems. Anti-M antibody is a relatively common, naturally occurring antibody of IgM variety. Clinically significant anti-M antibody is reactive at 37°C in the anti-human globulin phase due to high thermal amplitude of IgM component or presence of IgG component. If anti-M antibody is activated at 37°C or in the anti-human globulin phase, it may cause delayed haemolytic transfusion reactions or haemolytic disease of newborn, which suggest variable clinical significance...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658771/a1-and-a2-sub-types-of-blood-group-a-a-reflection-of-their-prevalence-in-north-karnataka-region
#13
Sujata S Giriyan, Akanksha Agrawal, Richa Bajpai, Niraj Kumar Nirala
INTRODUCTION: Landsteiner ABO system of blood groups is most important for transfusion medicine and has subtypes of A Antigen, A1 and A2, upon which further groups of A and AB have been classified. Of individuals with A antigen, approximately 20% belong to A2 while rest 80% belong to A1. Anti-A1 Lectin, a cold agglutinin which destroys A1 cells is clinically significant when they react at 37°C, causing transfusion reactions. AIM: To assess the prevalence of A1 and A2 subgroups in the population...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28657766/a-suspected-delayed-hemolytic-transfusion-reaction-mediated-by-anti-joa
#14
Ryan P Jajosky, Wendy C Lumm, Scott C Wise, Roni J Bollag, James F Shikle
A 32-year-old African-American woman with a history of sickle cell disease presented for surgical evaluation of left total hip arthroplasty due to avascular necrosis of the femoral head. In anticipation of a complex orthopedic procedure, pre-surgical blood work was ordered. The patient's Fenwal blood sample typed as group O, D+. Although the patient had a history of anti-Fya, the antibody identification was inconclusive, so the workup was sent to a reference laboratory. The patient was last transfused with red blood cells (RBCs) 2 years earlier, but had no history of transfusion reactions...
June 2017: Immunohematology
https://www.readbyqxmd.com/read/28657763/the-vel-blood-group-system-a-review
#15
Jill R Storry, Thierry Peyrard
The blood group antigen Vel has been one of immunohematology's greatest enigmas: the variation in antigen strength from one individual to another, the property of anti-Vel to readily hemolyze Vel+ red blood cells (RBCs), and the difficulty to screen for sufficient numbers of Vel- blood donors had made Vel a tough nut to crack. In 2013, a small, previously unknown protein called small integral membrane protein 1 (SMIM1) was identified on the RBC by three independent research groups using different approaches, and all three groups demonstrated that Vel- RBCs lacked SMIM1...
June 2017: Immunohematology
https://www.readbyqxmd.com/read/28656692/the-negative-secondary-test-for-bacterial-contamination-reducing-the-risk-of-septic-transfusion-reactions-from-platelets
#16
Peter A Tomasulo, Michael R Jacobs
No abstract text is available yet for this article.
June 27, 2017: Transfusion
https://www.readbyqxmd.com/read/28656655/clinical-utility-of-a-passive-immune-basophil-activation-test-for-the-analysis-of-allergic-transfusion-reactions
#17
Kazuta Yasui, Nobuki Matsuyama, Ikue Okamura-Shiki, Takashi Ikeda, Kazuyoshi Ishii, Rika A Furuta, Fumiya Hirayama
BACKGROUND: In previous studies, we demonstrated that the basophil activation test, which is performed using patient blood and the supernatants from transfused blood components, was able to elucidate not only the causative relationship between allergic transfusion reactions and the transfusion but also the mechanisms behind allergic transfusion reactions. However, for a large number of allergic transfusion reactions, patients are in a state of myelosuppression, and the basophil activation test cannot be performed for these patients because there are insufficient numbers of peripheral blood basophils...
June 27, 2017: Transfusion
https://www.readbyqxmd.com/read/28653472/residual-risk-of-bacterial-contamination-of-platelets-six-years-of-experience-with-sterility-testing
#18
Sandra Ramirez-Arcos, Caesar DiFranco, Terri McIntyre, Mindy Goldman
BACKGROUND: Canadian Blood Services screens 100% of platelet concentrates (PCs) for bacterial contamination with the BacT/ALERT system. Quality-control sterility testing of 1% (≥10 units) of outdated PCs is performed monthly. Data from routine screening, quality-control testing, and septic reactions obtained from 2010 to 2016 are presented herein. STUDY DESIGN AND METHODS: In total, 601,988 buffy coat PC pools and 186,737 apheresis PCs were routinely screened with aerobic cultures over 6 years...
June 26, 2017: Transfusion
https://www.readbyqxmd.com/read/28653329/acquired-rhd-mosaicism-identifies-fibrotic-transformation-of-thrombopoietin-receptor-mutated-essential-thrombocythemia
#19
Celina Montemayor-Garcia, Rebecca Coward, Maher Albitar, Rupa Udani, Prachi Jain, Eleftheria Koklanaris, Minoo Battiwalla, Siobán Keel, Harvey G Klein, A John Barrett, Sawa Ito
BACKGROUND: Acquired copy-neutral loss of heterozygosity has been described in myeloid malignant progression with an otherwise normal karyotype. CASE REPORT: A 65-year-old woman with MPL-mutated essential thrombocythemia and progression to myelofibrosis was noted upon routine pretransplant testing to have mixed field reactivity with anti-D and an historic discrepancy in RhD type. The patient had never received transfusions or transplantation. RESULTS: Gel immunoagglutination revealed group A red blood cells and a mixed-field reaction for the D phenotype, with a predominant D-negative population and a small subset of circulating red blood cells carrying the D antigen...
June 26, 2017: Transfusion
https://www.readbyqxmd.com/read/28649781/anti-d-reagents-should-be-chosen-accordingly-to-the-prevalence-of-d-variants-in-the-obstetric-population
#20
Jelena Lukacevic Krstic, Slavica Dajak, Jasna Bingulac-Popovic, Vesna Dogic, Jela Mratinovic-Mikulandra
BACKGROUND: Resolving ambiguous results of D antigen typing is crucial for appropriate and rational administration of anti-D immunoprophylaxis and transfusion practice in obstetric population. The aim of the study was to establish selection criteria of anti-D reagents for our population. METHODS: A total of 12 689 samples from primiparous women in Split-Dalmatia County, Croatia, were typed for RhD antigen during the period of 5 years. Ambiguous results were submitted to additional serologic investigation and genotyping...
June 26, 2017: Journal of Clinical Laboratory Analysis
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