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Vox Sanguinis

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https://www.readbyqxmd.com/read/28524359/development-of-rbc-transfusion-indications-and-the-collection-of-patient-specific-pre-transfusion-information
#1
LETTER
M H Yazer, L van de Watering, M Lozano, Shreerang Sirdesai, Kylie Rushford, Erica M Wood, Ana P Yokoyama, Jose M Kutner, Yulia Lin, Jeannie Callum, Christine Cserti-Gazdewich, Lani Lieberman, Jacob Pendergrast, Kate Pendry, Michael F Murphy, Kathleen Selleng, Andreas Greinacher, Neelam Marwaha, Ratti Ram Sharma, Ashish Jain, Yaacov Orlin, Vered Yahalom, Paolo Perseghin, Arianna Incontri, Nicoletta Masera, Hitoshi Okazaki, Toshiyuki Ikeda, Yutaka Nagura, J J Zwaginga, Ryszard Pogłod, Aleksandra Rosiek, Magdalena Letowska, Joyce Yuen, Joan Cid, Sarah K Harm, Prajesh Adhikari
No abstract text is available yet for this article.
May 19, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28524235/development-of-rbc-transfusion-indications-and-the-collection-of-patient-specific-pre-transfusion-information-summary
#2
LETTER
M H Yazer, L van de Watering, M Lozano, S Sirdesai, K Rushford, E M Wood, A P Yokoyama, J M Kutner, Y Lin, J Callum, C Cserti-Gazdewich, L Lieberman, J Pendergrast, K Pendry, M F Murphy, K Selleng, A Greinacher, N Marwaha, R Sharma, A Jain, Y Orlin, V Yahalom, P Perseghin, A Incontri, N Masera, H Okazaki, T Ikeda, Y Nagura, J J Zwaginga, R Pogłod, A Rosiek, M Letowska, J Yuen, J Cid, S K Harm, P Adhikari
No abstract text is available yet for this article.
May 19, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28516477/a-prospective-observational-study-on-effects-of-fever-on-red-cell-transfusion-outcome
#3
Ø Wendelbo, E Netland Opheim, T H Felli Lunde, Ø Bruserud, T Hervig, H Reikvam
The effects of fever on red cell transfusions are not well documented. In this pilot study, we have compared the outcome of red-blood-cell transfusions in haematologic patients with and without fever. The results indicate that haemoglobin increment per unit is significantly lower in febrile patients receiving red cell transfusions than in patients without fever. These findings are in line with earlier findings in preclinical studies. Larger studies are necessary to confirm our results, and laboratory studies should be conducted to investigate the underlying mechanisms...
May 18, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28516443/multiple-red-blood-cell-transfusions-and-iron-overload-in-very-low-birthweight-infants
#4
J D Treviño-Báez, E Briones-Lara, J Alamillo-Velázquez, M I Martínez-Moreno
BACKGROUND AND OBJECTIVES: To estimate the risk of iron overload in very low birthweight (VLBW) infants who receive more than two red blood cell (RBC) transfusions, in comparison with those who receive two or less during their hospital stay. MATERIALS AND METHODS: Prospective open cohort study in VLBW infants with >2 (exposed) and ≤2 (non-exposed) RBC transfusions. Ferritin, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were measured at birth and after each RBC transfusion...
May 18, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28466601/adult-extracorporeal-membrane-oxygenation-an-international-survey-of-transfusion-and-anticoagulation-techniques
#5
S A Esper, I J Welsby, K Subramaniam, W John Wallisch, J H Levy, J H Waters, D J Triulzi, J W A Hayanga, G J Schears
BACKGROUND AND OBJECTIVES: Extracorporeal membrane oxygenation (ECMO) is a method of life support for either isolated cardiac failure or respiratory failure, with or without cardiac failure. When used for hemodynamic support, the ECMO circuit presents a non-endothelialized, artificial surface to blood inciting an inflammatory response which activates haemostatic pathways. Anticoagulation may complicate a pre-existing coagulopathy and/or inadequate surgical hemostasis of varying severity...
May 3, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28466544/comparison-of-bacterial-attachment-to-platelet-bags-with-and-without-preconditioning-with-plasma
#6
M Loza-Correa, M Kalab, Q-L Yi, L J Eltringham-Smith, W P Sheffield, S Ramirez-Arcos
BACKGROUND AND OBJECTIVES: Canadian Blood Services produces apheresis and buffy coat pooled platelet concentrates (PCs) stored in bags produced by two different manufacturers (A and B, respectively), both made of polyvinyl chloride-butyryl trihexyl citrate. This study was aimed at comparing Staphylococcus epidermidis adhesion to the inner surface of both bag types in the presence or absence of plasma factors. MATERIALS AND METHODS: Sets (N = 2-6) of bags type A and B were left non-coated (control) or preconditioned with platelet-rich, platelet-poor or defibrinated plasma (PRP, PPP and DefibPPP, respectively)...
May 3, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28466551/functionality-testing-of-stem-cell-grafts-to-predict-infectious-complications-after-allogeneic-hematopoietic-stem-cell-transplantation
#7
J Nilsson, I Granrot, J Mattsson, B Omazic, M Uhlin, S Thunberg
BACKGROUND AND OBJECTIVES: Allogeneic hematopoietic stem cell transplantation (HSCT) is a routine clinical procedure performed to treat patients with haematological malignancies, primary immune deficiencies or metabolic disorders. Infections during lymphopenia after allogeneic HSCT are associated with high mortality and morbidity. Typical infectious agents are Epstein-Barr virus, cytomegalovirus, herpes simplex virus, varicella-zoster virus and fungi. The study aim was to evaluate whether measurement of the responses of antigen-specific T-cells, recognizing infectious pathogens would correlate to protective functions in the stem cell recipient post-transplant...
May 2, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28466467/are-there-ethical-differences-between-stopping-and-not-starting-blood-safety-measures
#8
K Kramer, M F Verweij, H L Zaaijer
BACKGROUND AND OBJECTIVES: Concern with the costs of blood safety is growing, which raises the question whether safety measures that reduce risk only marginally should be discontinued. Withdrawing such safety measures would allow reallocating resources to more efficient health care interventions, but it might raise moral objections. MATERIALS AND METHODS: This study evaluates two ethical arguments why discontinuing blood safety measures would be more objectionable than not implementing them...
May 2, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28401619/non-compliance-to-infectious-disease-deferral-criteria-among-hong-kong-s-blood-donors
#9
S S Lee, E K H Cheung, J N S Leung, C K Lee
BACKGROUND AND OBJECTIVES: Donor screening alone cannot eliminate the risk of transfusion-transmitted HIV infection. Donor deferral according to established criteria is a supplemental strategy, which has focused largely on men who have sex with men (MSM). A study was conducted to determine the compliance of non-MSM donors with such criteria and examine its implications on blood safety. MATERIALS AND METHODS: Chinese donors who have just donated blood at blood donor centres in Hong Kong were recruited...
April 11, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28382701/bacteria-can-proliferate-in-thawed-cryoprecipitate-stored-at-room-temperature-for-longer-than-4%C3%A2-h
#10
S Ramirez-Arcos, C Jenkins, W P Sheffield
Although key coagulation factor activities are maintained in thawed cryoprecipitate stored for up to 24 h at ambient temperature, several jurisdictions limit such storage to 4-6 h. Here, we separately spiked thawed cryoprecipitate units with four bacterial strains: Staphylococcus epidermidis, Serratia liquefaciens, Pseudomonas putida and Pseudomonas aeruginosa. No strains grew in the first 4 h of storage, but by 24 h, three of four exhibited up to 1000-fold proliferation. Pathogen inactivation technologies could be explored to mitigate the safety risk posed by extending storage of thawed cryoprecipitate at room temperature...
April 6, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28378415/early-%C3%AE-irradiation-and-subsequent-storage-of-red-cells-in-sag-m-additive-solution-potentiate-energy-imbalance-microvesiculation-and-susceptibility-to-stress-induced-apoptotic-cell-death
#11
S M Qadri, D Chen, P Schubert, D V Devine, W P Sheffield
γ-Irradiation of red blood cell (RBC) concentrates prevents transfusion-associated graft-versus-host disease but may diminish RBC quality. Herein, we show that early γ-irradiation (25 Gy) of RBC units and their subsequent storage in SAG-M additive solution altered membrane microvesiculation, supernatant haemoglobin and cytosolic ATP. γ-Irradiation did not influence phosphatidylserine externalization, a marker of erythrocyte apoptotic cell death (eryptosis), in RBC stored for 42 days. However, shorter periods (4-21 days) of storage accentuated eryptosis in γ-irradiated RBC versus untreated RBCs following energy depletion, suggesting that γ-irradiated RBC is primed for stress-induced eryptosis during storage...
April 5, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28378343/efficiency-of-riboflavin-and-ultraviolet-light-treatment-against-high-levels-of-biofilm-derived-staphylococcus-epidermidis-in-buffy-coat-platelet-concentrates
#12
M Taha, B Culibrk, M Kalab, P Schubert, Q-L Yi, R Goodrich, S Ramirez-Arcos
BACKGROUND AND OBJECTIVES: Staphylococcus epidermidis forms surface-attached aggregates (biofilms) in platelet concentrates (PCs), which are linked to missed detection during PC screening. This study was aimed at evaluating the efficacy of riboflavin-UV treatment to inactivate S. epidermidis biofilms in buffy coat (BC) PCs. MATERIALS AND METHODS: Biofilm and non-biofilm cells from S. epidermidis ST-10002 and S. epidermidis AZ-66 were individually inoculated into whole blood (WB) units (~10(6) colony-forming units (CFU)/ml) (N = 4-5)...
April 5, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28370177/blood-safety-implications-of-donors-using-hiv-pre-exposure-prophylaxis
#13
C R Seed, H Yang, J F Lee
HIV pre-exposure prophylaxis (PrEP) is the use of one or more antiretroviral medications (in combination) to prevent HIV infection. The most commonly used PrEP medication (Truvada(®) , Gilead Sciences, Inc.) acts by inhibiting HIV-1 reverse transcriptase. If someone who is using PrEP unknowingly becomes HIV infected (termed 'PrEP breakthrough infection'), there may be suppressed viral replication resulting in a virus level undetectable by the most sensitive HIV NAT. Failure to seroconvert and seroreversion (loss of previously detectable HIV antibodies) have also both been observed with 2nd, 3rd and 4th generation screening immunoassays, as well as Western blot assays...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28370161/metabolomics-comparison-of-red-cells-stored-in-four-additive-solutions-reveals-differences-in-citrate-anticoagulant-permeability-and-metabolism
#14
Ó Rolfsson, Ó E Sigurjonsson, M Magnusdottir, F Johannsson, G Paglia, S Guðmundsson, A Bordbar, S Palsson, S Brynjólfsson, S Guðmundsson, B Palsson
BACKGROUND AND OBJECTIVES: Metabolomics studies have revealed transition points in metabolic signatures of red cells during storage in SAGM, whose clinical significance is unclear. We set out to investigate whether these transition points occur independent of storage media and define differences in the metabolism of red cells in additive solutions. MATERIALS AND METHODS: Red cell concentrates were stored in SAGM, AS-1, AS-3 or PAGGSM, and sampled fourteen times spanning Day 1-46...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28370062/simultaneous-genotyping-of-human-platelet-alloantigen-1-to-28bw-systems-by-multiplex-polymerase-chain-reaction-sequence-based-typing
#15
X Hong, S Chen, Y Ying, Y Liu, X Xu, J He, F Zhu
BACKGROUND AND OBJECTIVES: Human platelet alloantigen (HPA) genotyping is important for the diagnosis and prevention the alloimmune platelet disorders. In this study, a simultaneous genotyping method for HPA-1 to -28bw systems was established using multiplex PCR-SBT and the frequencies of genotypes and alleles of HPA-1 to -28bw systems in the Zhejiang Han population were analysed. MATERIALS AND METHODS: The specific primers were designed according to the nucleotide sequences of HPA-1 to 28bw systems which are located in ITGB3, GP1BA, ITGA2B, ITGA2, GP1BB and CD109, respectively...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28369949/evaluating-the-impact-of-the-abo-blood-group-on-the-clinical-outcome-of-thrombotic-thrombocytopenic-purpura-associated-with-severe-adamts13-deficiency
#16
E Hussein, J Teruya
BACKGROUND AND OBJECTIVES: Thrombotic thrombocytopenic purpura (TTP) is caused by the decrease of ADAMTS13, leading to the accumulation of ultra large von Willebrand factor (ULVWF). It was proposed that the distribution of blood group O among TTP patients may be potentially lower than expected because of the lower levels of VWF. The aim of this study was to explore the relationship between various blood groups and the clinical outcome in TTP. MATERIALS AND METHODS: Thirty-three patients with TTP with severe ADAMTS13 deficiency were studied...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28345172/international-prospective-haemovigilance-study-on-methylene-blue-treated-plasma
#17
L Noens, Ma D Vilariño, A Megalou, H Qureshi
BACKGROUND AND OBJECTIVES: Methylene blue is a phenothiazine dye, which in combination with visible light has virucidal and bactericidal properties, disrupting the replication of a broad range of enveloped viruses and some non-enveloped viruses. The study objective was to collect data on adverse reactions occurring with methylene blue plasma administered in a routine clinical practice environment and document their characteristics and severity. MATERIALS AND METHODS: This was an open label, multicentre, non-controlled, non-randomized, non-interventional study...
March 26, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28337765/quality-control-of-apheresis-platelets-a-multicentre-study-to-evaluate-factors-that-can-influence-ph-measurement
#18
M Germain, Y Grégoire, R R Vassallo, J P Acker, R Cardigan, D de Korte, D O Irving, S Bégué
BACKGROUND AND OBJECTIVES: Blood operators routinely monitor the pH of apheresis platelets as a marker of the so-called storage lesion, which can result from manufacturing problems. It is also suspected that some donor characteristics can increase the risk of poor platelet storage. To explore this hypothesis, we analysed a large, multinational data set of quality control (QC) pH test results on apheresis platelets. MATERIALS AND METHODS: For the period between September 2011 and August 2014, seven blood operators in Canada, the USA, the Netherlands, the United Kingdom, France and Australia provided pH QC test results and donor characteristics on a total of 21,671 apheresis platelets...
March 23, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28337763/automatic-washing-of-thawed-haematopoietic-progenitor-cell-grafts-a-preclinical-evaluation
#19
M Abonnenc, B Pesse, J-D Tissot, S Barelli, N Lion
BACKGROUND AND OBJECTIVES: Autologous haematopoietic progenitor cell (HPC) is a prerequisite for high-dose chemotherapy in treatment of several haematologic and non-haematologic malignancies. HPCs are collected by apheresis and cryopreserved until infusion. Postinfusion adverse events have been in part related to the dimethyl sulphoxide (DMSO) used as cryoprotectant. The aim was to evaluate (i) an automated sequential washing procedure for DMSO removal in thawed HPC grafts and (ii) washing solutions in replacement of hydroxyethyl starch (HES)-based solutions...
March 23, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28337751/a-novel-network-analysis-tool-to-identify-relationships-between-disease-states-and-risks-for-red-blood-cell-alloimmunization
#20
R Celli, W Schulz, J E Hendrickson, C A Tormey
We hypothesized that diagnoses may be associated with alloantibody 'responder' status and examined associations between disease states and alloimmunization. Patients with ≥1 alloantibody and non-alloimmunized controls were analysed. Pearson's coefficients were calculated to determine associations between alloimmunization and diseases; significant correlations were selected to construct a network. Inflammatory disorders and diseases requiring chronic transfusion support were associated with responder status...
March 23, 2017: Vox Sanguinis
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