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Transfusion

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https://www.readbyqxmd.com/read/29989178/risk-factors-for-peripartum-blood-transfusion-in-south-africa-a-case-control-study
#1
Evan M Bloch, Charlotte Ingram, Jennifer Hull, Susan Fawcus, John Anthony, Randolph Green-Thompson, Robert L Crookes, Solomuzi Ngcobo, Darryl V Creel, Lauren Courtney, Greg R M Bellairs, Edward L Murphy
BACKGROUND: Obstetric hemorrhage (OH) and access to peripartum blood transfusion remains a global health challenge. The rates of peripartum transfusion in South Africa exceed those in high-income countries despite comparable rates of OH. We sought to evaluate factors associated with peripartum transfusion. STUDY DESIGN AND METHODS: A case-control study was conducted at four large South African hospitals. Transfused peripartum women (cases) and nontransfused controls were stratum matched 1:2 by hospital and delivery date...
July 10, 2018: Transfusion
https://www.readbyqxmd.com/read/29984534/improvement-of-maternal-and-fetal-outcomes-in-women-with-sickle-cell-disease-treated-with-early-prophylactic-erythrocytapheresis
#2
Alice Vianello, Elisa Vencato, Maurizio Cantini, Giovanni Zanconato, Erminia Manfrin, Alberto Zamo, Francesco Zorzi, Filippo Mazzi, Nicola Martinelli, Elena Cavaliere, Francesca Monari, Donatella Venturelli, Francesca Ferrara, Oliviero Olivieri, Lucia De Franceschi
BACKGROUND: The desire for pregnancy in sickle cell disease (SCD) women has become a true challenge for hematologists, requiring a multidisciplinary approach. Erythrocytapheresis (ECP) is an important therapeutic tool in SCD, but only limited data on starting time and the effects of ECP during pregnancy are available. STUDY DESIGN AND METHODS: This is a double-center retrospective cross-sectional study on a total of 46 single pregnancies in SCD women from January 2008 to June 2017...
July 8, 2018: Transfusion
https://www.readbyqxmd.com/read/29984417/enhancing-hemotherapy-safety-through-pertinent-diagnostic-testing-and-electronic-provisional-diagnosis-reporting-expanding-roles-for-blood-bank-technologists-in-biovigilance-and-patient-safety
#3
Chester Andrzejewski, Lynne O'Hearn, Joan Rock, Kelly Passanisi, Lynn Eaton, Alexander Knee, Susmitha Edappallath, Michael Merola, Darlene Cloutier, Paul Visintainer, Vandita Johari
BACKGROUND: Suspected transfusion reaction (STR) investigations are foundational for biovigilance. Diagnostic evaluations performed by blood banks may prolong turnaround times (TATs) for final STR results reporting. We identified a quality improvement opportunity using diagnostic testing reflex algorithms and our hospital's patient electronic health record to enhance TATs regarding one aspect of STR results reporting. STUDY DESIGN AND METHODS: We conducted a descriptive quality improvement study of reported STR cases investigated by our hospital's blood bank from March 1, 2014, to December 31, 2016, using data obtained from consult reports/quality improvement databases examining the number and types of diagnostic algorithm reflex activations performed and the TATs for an electronic provisional diagnosis reporting (PDXR) related to them...
July 8, 2018: Transfusion
https://www.readbyqxmd.com/read/29897102/genotyping-analysis-of-mns-blood-group-gp-b-a-b-hybrid-glycophorins-in-the-chinese-southern-han-population-using-a-high-resolution-melting-assay
#4
Ling Wei, Genghis H Lopez, Yang Zhang, Jizhi Wen, Zhen Wang, Yongshui Fu, Catherine A Hyland, Robert L Flower, Guangping Luo, Yanli Ji
BACKGROUND: MNS hybrid GP(B-A-B) glycophorins are more commonly found in Southeast Asians and alloantibodies to antigens they carry are clinically significant. Detection of hybrid glycophorins by serologic techniques is limited due to lack of commercial reagents. In this study, a genotyping method for GP(B-A-B) hybrid glycophorins based on high-resolution melting (HRM) analysis was applied for genotyping analysis in the Chinese Southern Han population. STUDY DESIGN AND METHODS: DNA samples from 3104 Chinese Southern Han blood donors were collected...
June 13, 2018: Transfusion
https://www.readbyqxmd.com/read/29802644/safety-profile-of-uncrossmatched-cold-stored-low-titer-group-o-whole-blood-in-civilian-trauma-patients
#5
Jansen N Seheult, Marshall Bahr, Vincent Anto, Louis H Alarcon, Alain Corcos, Jason L Sperry, Darrell J Triulzi, Mark H Yazer
BACKGROUND: The use of cold-stored low-titer group O whole blood (LTOWB) for civilian trauma patients is gaining popularity. However, hemolysis might occur among non-group O recipients. This study evaluated the serologic safety of transfusing up to 4 units of LTOWB. STUDY DESIGN AND METHODS: Hypotensive male and at least 50-year-old female trauma patients who received leukoreduced, uncrossmatched, group O+, low-titer (<50 anti-A and anti-B), platelet-replete whole blood during initial resuscitation were included in this prospective, observational study...
May 25, 2018: Transfusion
https://www.readbyqxmd.com/read/29797727/severe-anemia-associated-with-increased-risk-of-death-and-myocardial-ischemia-in-patients-declining-blood-transfusion
#6
Nicole R Guinn, Mary L Cooter, Claudia Villalpando, Richard B Weiskopf
BACKGROUND: There are limited data on morbidity and mortality in severely anemic patients for whom blood transfusion is not an option, with most data coming only from surgical patients and no data on the rate of myocardial ischemia associated with severe anemia. We sought to determine rates of all-cause mortality and myocardial ischemia in severely anemic hospitalized patients declining transfusion. STUDY DESIGN AND METHODS: With institutional review board approval, we conducted a retrospective review of all hospital admissions for adult blood refusal patients between January 2004 and September 2015 at a single institution...
May 24, 2018: Transfusion
https://www.readbyqxmd.com/read/29770457/abo-genotyping-with-next-generation-sequencing-to-resolve-heterogeneity-in-donors-with-serology-discrepancies
#7
Ping Chun Wu, Yin-Hung Lin, Lei Fang Tsai, Ming Hung Chen, Pei-Lung Chen, Shun-Chung Pai
BACKGROUND: ABO subtypes are characterized by the alteration of antigens present and their expression levels on red blood cells and many are linked to genetic changes in the ABO gene. Weakened expression of antigens should be identified to prevent transfusion reactions or ABO-incompatible transplantations. Genotyping can be applied to identify subtypes to complement serologic testing. Next-generation sequencing (NGS) has shown to provide sensitive and accurate genotyping results as well as valuable cis/trans information...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29770455/development-validation-and-potential-applications-of-biotinylated-red-blood-cells-for-posttransfusion-kinetics-and-other-physiological-studies-evidenced-based-analysis-and-recommendations
#8
REVIEW
Donald M Mock, Demet Nalbant, Svetlana V Kyosseva, Robert L Schmidt, Guohua An, Nell I Matthews, Alexander P J Vlaar, Robin van Bruggen, Dirk de Korte, Ronald G Strauss, José A Cancelas, Robert S Franco, Peter Veng-Pedersen, John A Widness
The current reference method in the United States for measuring in vivo population red blood cell (RBC) kinetics utilizes chromium-51 (51 Cr) RBC labeling for determining RBC volume, 24-hour posttransfusion RBC recovery, and long-term RBC survival. Here we provide evidence supporting adoption of a method for kinetics that uses the biotin-labeled RBCs (BioRBCs) as a superior, versatile method for both regulatory and investigational purposes. RBC kinetic analysis using BioRBCs has important methodologic, analytical, and safety advantages over 51 Cr-labeled RBCs...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29770454/streamlining-a-blood-center-and-hospital-transfusion-service-supply-chain-with-an-informatics-vendor-managed-inventory-solution-development-implementation-and-3-month-follow-up
#9
Hamilton C Tsang, Adam Garcia, Robert Scott, David Lancaster, Dianne Geary, Anh-Thu Nguyen, Raina Shankar, Leslie Buchanan, Tho D Pham
BACKGROUND: The ordering process at Stanford Health Care involved twice-daily shipments predicated upon current stock levels from the blood center to the hospital transfusion service. Manual census determination is time consuming and error prone. We aimed to enhance inventory management by developing an informatics platform to streamline the ordering process and reallocate staff productivity. STUDY DESIGN AND METHODS: The general inventory accounts for more than 50 product categories based on characteristics including component, blood type, irradiation status, and cytomegalovirus serology status...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29770452/the-effects-of-blood-transfusion-on-red-blood-cell-distribution-width-in-critically-ill-patients-a-pilot-study
#10
Savino Spadaro, Fabio Silvio Taccone, Alberto Fogagnolo, Federico Franchi, Sabino Scolletta, Riccardo Ragazzi, Alberto Fanni, Elisabetta Marangoni, Maurizio Govoni, Roberto Reverberi, Carlo Alberto Volta
BACKGROUND: Red blood cell distribution width (RDW) is a measure of anisocytosis, generally used in the differential diagnosis of anemia. Recently, RDW was associated with increased mortality in critically ill patients. Red blood cell (RBC) transfusions are potential confounders on RDW values interpretation. The aim of this study was to analyze the changes in RDW after RBC transfusion in intensive care unit (ICU) patients. STUDY DESIGN AND METHODS: This was a prospective, observational study including patients admitted to ICU requiring 1 RBC unit...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29770450/relationship-of-epitope-glycosylation-and-other-properties-of-blood-group-proteins-to-the-immunogenicity-of-blood-group-antigens
#11
John G Howe, Gary Stack
BACKGROUND: The intrinsic properties of polypeptide blood group antigens that determine their relative immunogenicities are unknown. Because size, composition, charge, dose, and epitope glycosylation affect the immunogenicity of other polypeptides, we examined whether similar properties were related to the immunogenicity of blood group antigens. STUDY DESIGN AND METHODS: Amino acid (AA) sequences of antithetical blood group antigens were searched for N- and O-glycosylation sites...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29770447/effectiveness-of-immunoglobulin-prophylaxis-in-reducing-clinical-complications-of-hematopoietic-stem-cell-transplantation-a-systematic-review-and-meta-analysis
#12
REVIEW
Hilalion Ahn, Jason Tay, Beverley Shea, Brian Hutton, Risa Shorr, Greg A Knoll, Donald William Cameron, Juthaporn Cowan
BACKGROUND: Prophylactic immunoglobulin has been used with varying efficacy to reduce complications in hematopoietic stem cell transplant recipients. STUDY DESIGN AND METHODS: A systematic review and meta-analysis was conducted of randomized controlled trials that assessed clinical outcomes (overall survival, transplant-related mortality, graft-versus-host disease [GVHD], veno-occlusive disease [VOD], interstitial pneumonitis, disease relapse, cytomegalovirus [CMV] infection and disease, non-CMV infection) of immunoglobulin prophylaxis versus placebo in hematopoietic stem cell transplant recipients...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29744883/evaluation-of-the-functional-properties-of-cryopreserved-buffy-coat-derived-monocytes-for-monocyte-monolayer-assay
#13
Betty J Kipkeu, Melissa L Shyian, Luciana da Silveira Cavalcante, Trang T Duong, Rae S M Yeung, Beth Binnington, Donald R Branch, Jason P Acker, Jelena L Holovati
BACKGROUND: Monocyte monolayer assay (MMA) is a compatibility testing method for evaluating the clinical significance of red blood cell (RBC) alloantibodies. Time-consuming monocyte isolation procedures and requirement for fresh monocytes have limited application of the MMA. The aim of this study was to develop and assess the utility and efficacy of cryopreserved buffy coat (BC)-derived monocytes for MMA application. STUDY DESIGN AND METHODS: Peripheral blood mononuclear cells (PBMNCs) were isolated from BC or peripheral blood (PB) and pooled and BC PBMNCs were cryopreserved...
May 9, 2018: Transfusion
https://www.readbyqxmd.com/read/29732580/quantity-quality-and-functionality-of-peripheral-blood-cells-derived-from-residual-blood-of-different-apheresis-kits
#14
Arne Knörck, Stefanie Marx, Kim S Friedmann, Sylvia Zöphel, Lisa Lieblang, Carmen Hässig, Isabelle Müller, Jan Pilch, Urban Sester, Markus Hoth, Hermann Eichler, Martina Sester, Eva C Schwarz
BACKGROUND: Research with primary human white blood cell (WBC) subpopulations requires high quantity, quality, and functionality of peripheral blood mononuclear cells (PBMCs) as a source to further characterize cellular subpopulations such as T and B lymphocytes, monocytes, or natural killer cells. Apart from buffy coats derived from whole blood, residual blood from preparative hemapheresis kits are used as a source for PBMCs, but knowledge on the yield and functionality of cells from different devices is limited...
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732577/estimated-fetal-weight-percentile-as-a-tool-to-predict-collection-of-cord-blood-units-with-higher-cellular-content-implications-for-prenatal-selection-of-cord-blood-donors
#15
Xinxin Lin, Marta Torrabadella, Lluís Amat, Susana Gómez, Carmen Azqueta, Mar Sánchez, Daniel Cuadras, Maria José Martínez Lorenzo, José María Brull, Antoni Gayà, Arantxa Cemborain, Cristina Pérez Garcia, JoséLuís Arroyo, Sergi Querol, Maria Dolores Gómez Roig
BACKGROUND: The need for high-cellular-content cord blood units (CBUs) for allogenic transplantation is evident to improve clinical outcomes. In our environment and with current donation programs, very few collected units meet suggested clinical thresholds, making collection programs highly inefficient. To increase the clinical conversion rate, we have assessed factors influencing the cellular content of the cord blood collection and established the estimated fetal weight percentile (EFWp) as a tool to predict which deliveries will obtain higher cellular counts...
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732576/transfusions-of-least-incompatible-blood-with-intravenous-immunoglobulin-plus-steroids-cover-in-two-patients-with-rare-antibody
#16
Nay Win, Malcolm Needs, Nicole Thornton, Robert Webster, Cherry Chang
BACKGROUND: The therapeutic value of the use of intravenous immunoglobulin (IVIG) to correct anemia and thrombocytopenia as a result of immunologic causes (hemolytic disease of the fetus and newborn and fetal or neonatal alloimmune thrombocytopenia) have been well established. Few published papers exist regarding the use of IVIG in adult settings. We report two patients with clinically significant antibodies against high-incidence antigens, who were successfully transfused with incompatible red blood cells (RBCs), in conjunction with IVIG plus steroids and IVIG...
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732573/evaluation-of-the-new-continuous-mononuclear-cell-collection-protocol-versus-an-older-version-on-two-different-apheresis-machines
#17
Silvia Spoerl, Dagmar Wäscher, Stefanie Nagel, Christian Peschel, Mareike Verbeek, Katharina Götze, Angela M Krackhardt
BACKGROUND: Cell separators are routinely used to collect CD34+ blood stem cells in the context of customized stem cell transplantation procedures. The Spectra Optia (Terumo BCT) is a novel development of the precursor instrument, the Cobe Spectra (Terumo BCT). STUDY DESIGN AND METHODS: In this report, 146 autologous and 42 allogeneic donors undergoing apheresis on the Cobe Spectra using the mononuclear cell (MNC) program 4.7 or on the Spectra Optia using the new continuous mononuclear cell (cMNC) program 11...
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732572/two-novel-rhd-alleles-encoding-truncated-nonfunctional-d-polypeptides
#18
Antonella Matteocci, Tommaso Mancuso, Federica Pirelli, Tiruneh Hailemariam, Alessandra Moscetti, Katiuscia Castagna, Angela Collaretti, Letizia Rogai, Guido Nespoli, Paola Grammatico, Luca Pierelli
No abstract text is available yet for this article.
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732571/inactivation-of-ebola-virus-and-middle-east-respiratory-syndrome-coronavirus-in-platelet-concentrates-and-plasma-by-ultraviolet-c-light-and-methylene-blue-plus-visible-light-respectively
#19
Markus Eickmann, Ute Gravemann, Wiebke Handke, Frank Tolksdorf, Stefan Reichenberg, Thomas H Müller, Axel Seltsam
BACKGROUND: Ebola virus (EBOV) and Middle East respiratory syndrome coronavirus (MERS-CoV) have been identified as potential threats to blood safety. This study investigated the efficacy of the THERAFLEX UV-Platelets and THERAFLEX MB-Plasma pathogen inactivation systems to inactivate EBOV and MERS-CoV in platelet concentrates (PCs) and plasma, respectively. STUDY DESIGN AND METHODS: PCs and plasma were spiked with high titers of cell culture-derived EBOV and MERS-CoV, treated with various light doses of ultraviolet C (UVC; THERAFLEX UV-Platelets) or methylene blue (MB) plus visible light (MB/light; THERAFLEX MB-Plasma), and assessed for residual viral infectivity...
May 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29732565/molecular-characterization-of-three-novel-rhd-alleles-in-brazilians
#20
Tatiane Aparecida de Paula Vendrame, Flavia Roche Moreira Latini, Rosangela de Medeiros Person, Afonso José Pereira Cortez, Lilian Castilho, Carine Prisco Arnoni
No abstract text is available yet for this article.
May 6, 2018: Transfusion
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