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Transfusion

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https://www.readbyqxmd.com/read/28301053/blood-transfusion-knowledge-of-surgical-residents-is-an-educational-intervention-effective
#1
Caitlin Champion, Elianna Saidenberg, Jacinthe Lampron, Debra Pugh
BACKGROUND: Evidence-based transfusion education for surgical residents is crucial to improving practice. A pilot study was undertaken to assess the effectiveness of an education module for improving transfusion knowledge among surgical residents. METHODS: Modules were developed and delivered by experts in surgery and transfusion medicine. They were delivered to residents in their first 2 years of training (Surgical Foundations), and to General Surgery residents across all years of training...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28301052/decreased-blood-product-usage-during-extracorporeal-life-support-with-reduced-circuit-volumes
#2
Samuel D Addison, Marcia L Buck, Gary Y Fang, James J Gangemi, David A Kaufman
BACKGROUND: Activation and consumption of platelets (PLT) and clotting factors along with hemolysis occurs when blood contacts the extracorporeal life support (ECLS) circuit and its components. STUDY DESIGN AND METHODS: The objective was to examine the effects of reducing ECLS circuit volume by decreasing tubing length and changing components on blood product usage in neonatal and pediatric patients. Blood product administration was analyzed in 40 consecutive patients who required ECLS for respiratory or cardiac failure before (PRE) and after (POST) changes in circuit design and components...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28301051/adverse-events-of-cryopreserved-hematopoietic-stem-cell-infusions-in-adults-a-single-center-observational-study
#3
Zaher K Otrock, Diane S Sempek, Sherry Carey, Brenda J Grossman
BACKGROUND: Autologous hematopoietic stem cell (HSC) transplantation has been used for almost three decades for the management of malignant hematologic diseases and some solid tumors. Dimethyl sulfoxide (DMSO) is used as a cryoprotective agent for hematopoietic progenitor cells (HPCs) collected by apheresis (HPC-A). We evaluated the factors contributing to the occurrence of adverse events (AEs) of cryopreserved HPC-A infusion. STUDY DESIGN AND METHODS: Between January 2009 and June 2014, a total of 1269 (1191 patients) consecutive HPC-A infusions were given to adult patients undergoing autologous HSC transplantation at Barnes-Jewish Hospital...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28301049/determining-the-rate-of-underrecognition-of-west-nile-virus-neurologic-disease-in-the-province-of-quebec-in-2012
#4
Gilles Delage, Sophie Dubuc, Yves Grégoire, Anne-Marie Lowe, France Bernier, Marc Germain
BACKGROUND: During a major outbreak of West Nile virus (WNV) infection in the province of Quebec in 2012, public health authorities (PHAs) suspected underrecognition of West Nile neurologic disease (WNND). With data on acute infections detected in blood donors, an estimate of the degree of underrecognition was produced. STUDY DESIGN AND METHODS: All 2012 donors were tested for WNV infection with the use of reverse transcription-polymerase chain reaction (RT-PCR)...
March 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28295394/understanding-tests-of-the-association-of-categorical-variables-the-pearson-chi-square-test-and-fisher-s-exact-test
#5
Aaron S Hess, John R Hess
No abstract text is available yet for this article.
March 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28295355/frequency-of-trypanosoma-cruzi-parasitemia-among-infected-blood-donors-with-a-potential-association-between-parasite-lineage-and-transfusion-transmission
#6
David A Leiby, Megan L Nguyen, Melanie C Proctor, Rebecca L Townsend, Susan L Stramer
BACKGROUND: Trypanosoma cruzi is endemic to the Americas where it demonstrates multiple lineages over a vast geographic range (i.e., United States to Argentina). These lineages possess divergent geographic and biologic characteristics, including variations in disease manifestations. Herein, we report the frequency of parasitemia among seropositive US blood donors and the potential association between parasite lineage and transfusion transmission. STUDY DESIGN AND METHODS: Blood donors identified as T...
March 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28295352/should-optimal-timing-between-two-intrauterine-transfusions-be-based-on-estimated-daily-decrease-of-hemoglobin-or-on-measurement-of-fetal-middle-cerebral-artery-peak-systolic-velocity
#7
Louise Ghesquière, Véronique Houfflin-Debarge, Hélène Behal, Capucine Coulon, Damien Subtil, Pascal Vaast, Charles Garabedian
BACKGROUND: To best predict the recurrence of fetal anemia after intrauterine transfusion (IUT), the measurement of middle cerebral artery peak systolic velocity (PSV) and the estimation of hemoglobin (Hb) daily decrease are compared. STUDY DESIGN AND METHODS: A retrospective study including 38 patients who had at least two IUTs in a context of red blood cell alloimmunization was conducted. PSV values before first, second, and third IUTs were collected and expected Hb level was calculated according to various Hb daily decrease formulas as proposed in the literature...
March 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28294353/difference-in-difference-simple-tool-accurate-results-causal-effects
#8
Guido Cataife, Monica B Pagano
No abstract text is available yet for this article.
March 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28294343/patient-factors-associated-with-unidentified-reactivity-in-solid-phase-and-polyethylene-glycol-antibody-detection-methods
#9
Nichole M Miller, Susan T Johnson, Erica Carpenter, Christine A Naczek, Matthew S Karafin
BACKGROUND: Several publications have reported an increase in nonspecific reactions when automated technologies such as solid phase are used for the detection of red blood cell alloantibodies. However, there is little known about patient-specific factors associated with these reactions and the clinical importance of these nonspecific reactions. STUDY DESIGN AND METHODS: We performed a 6-year retrospective review of our blood bank records and all newly reported unidentified (UID) reactivity using a test tube polyethylene glycol (t-PEG) and solid-phase method for the detection and identification of alloantibodies was recorded...
March 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28295397/red-blood-cell-transfusions-can-induce-proinflammatory-cytokines-in-preterm-infants
#10
Carlo Dani, Chiara Poggi, Elena Gozzini, Valentina Leonardi, Alice Sereni, Rosanna Abbate, Anna Maria Gori
BACKGROUND: The risk of developing red blood cell (RBC) transfusion-associated necrotizing enterocolitis (TANEC) in preterm infants has recently been emphasized. Our aim was to assess changes in cytokine serum levels after RBC transfusions in a cohort of very preterm infants to evaluate their possible proinflammatory effect. STUDY DESIGN AND METHODS: We carried out a prospective observational study. One transfusion event was studied in infants less than 32 weeks' gestation and more than 7 days old (n = 20) admitted to a tertiary neonatal intensive care unit...
March 11, 2017: Transfusion
https://www.readbyqxmd.com/read/28295384/noninvasive-fetal-genotyping-of-paternally-inherited-alleles-using-targeted-massively-parallel-sequencing-in-parentage-testing-cases
#11
Donggui Yang, Hao Liang, Yu Gao, Shaobin Lin, Zhiming He, Jun Gao, Hongyu Sun, Qing Li, Xiaoyan Ma, Xueling Ou
BACKGROUND: Researchers have sought to develop a noninvasive protocol for paternity analysis that uses fetal cell-free DNA (cfDNA) in maternal plasma. Massively parallel sequencing (MPS) is expected to overcome this challenge because it enables the analysis of millions of DNA molecules at a single-base resolution. STUDY DESIGN AND METHODS: Seven women were involved in prenatal paternity testing cases. Before conventional invasive procedures, cfDNA was isolated from maternal plasma...
March 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28295360/human-platelet-antigen-antibody-induction-in-uncomplicated-pregnancy-is-associated-with-hla-sensitization
#12
Viktoria S A Reiher, Gideon Hönger, Laura Infanti, Jakob R Passweg, Irene Hösli, Beat M Frey, Christoph Gassner, Stefan Meyer, Andreas S Buser, Andreas Holbro, Stefan Schaub
BACKGROUND: Alloimmunization against human platelet antigens (HPAs) during pregnancy is rare but can lead to severe bleeding disorders, such as fetal and neonatal alloimmune thrombocytopenia. STUDY DESIGN AND METHODS: In a cohort of 241 uncomplicated pregnancies, we investigated the immunogenicity of HPA mismatches and correlated HLA sensitization with HPA antibody formation. HPA antibodies were measured with a Luminex-based multiplex assay. RESULTS: HPA mismatches were observed in 109 of 241 pregnancies (45%), but child-specific HPA antibodies were only found in two of 109 cases (2%), indicating a low immunogenicity...
March 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28295356/red-blood-cell-metabolic-responses-to-refrigerated-storage-rejuvenation-and-frozen-storage
#13
Angelo D'Alessandro, Alan D Gray, Zbignew M Sczcepiorkowski, Kirk Hansen, Louise H Herschel, Larry J Dumont
BACKGROUND: Storage of red blood cells (RBCs) under blood bank conditions promotes metabolic modulation within the RBC. This "metabolic storage lesion" may affect the quality and safety of the transfused RBCs. The aim of this study is to determine the metabolic changes in stored RBCs over 42 days of routine storage followed by a US Food and Drug Administration-approved method of rejuvenation, freezing, and preparation for transfusion. STUDY DESIGN AND METHODS: We exploited a mass spectrometry-based metabolomics approach to monitor 42-day-stored citrate phosphate dextrose/AS-1 RBCs (n = 29) that were rejuvenated, glycerolized and frozen, then thawed and deglycerolized, and held for 24 hours at 1 to 6ºC in saline-glucose...
March 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28267201/a-case-of-anti-rd-causing-fetal-anemia
#14
Stefan Rauch, Jochen Ritgen, Matthias Wißkirchen, Ursula Bauerfeind, Elisabeth Kohne, Christof Weinstock
BACKGROUND: Rd (SC4) is a low-frequency antigen of the Scianna blood group system. Only very few reports on anti-Rd in pregnancy exist. Mild to moderate hemolytic disease of the newborn caused by anti-Rd has been reported. This report may add further information on the clinical significance of anti-Rd for the fetus. CASE REPORT: In a case of severe fetal anemia (hemoglobin concentration, 3.0 g/dL) repeated intrauterine transfusions were required. The strongly positive direct antiglobulin test (DAT) of the fetal red blood cells led to the diagnosis of hemolytic disease...
March 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28266049/standardization-of-transfusion-practice-in-organ-donors-using-the-digital-intern-an-electronic-decision-support-algorithm
#15
Joseph P Connor, Ashley M Cunningham, Thomas Raife, William N Rose, Joshua E Medow
BACKGROUND: Prospective clinical trials support restrictive thresholds for red blood cell (RBC) transfusion. Nonsurvivable donors are a major source of organs for transplantation. The Digital Intern (DI) is a computer algorithm to standardize donor care that includes a more restrictive transfusion threshold. The impact of standardized and restrictive RBC transfusion in organ donors, as determined by the DI, has not been reported. STUDY DESIGN AND METHODS: We conducted a retrospective cohort study to compare the transfusion practice of the DI (n = 100) to a historic group of physician-managed donors (n = 90)...
March 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28266045/outcomes-in-necrotizing-soft-tissue-infections-treated-with-therapeutic-plasma-exchange
#16
Nabiha Huq Saifee, Heather L Evans, Amalia S Magaret, John R Hess, Meghan Delaney, Grant E O'Keefe, Tam N Pham, Hugh Foy, Eileen Bulger, Monica B Pagano
BACKGROUND: Treatment of necrotizing soft tissue infections (NSTIs) includes prompt surgical debridement and antibiotics, but despite standard care, the morbidity and mortality remain high. Since therapeutic plasma exchange (TPE) has been considered for treatment of severe sepsis, this study evaluates the efficacy of TPE for patients with NSTI. STUDY DESIGN AND METHODS: This is a retrospective study of patients with diagnosis of NSTI who received treatment with and without TPE over an 11-year period...
March 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28266038/using-direct-antiglobulin-test-results-to-reduce-unnecessary-cold-agglutinin-testing
#17
Craig B Wilen, Garrett S Booth, Brenda J Grossman, William J Lane, Penny C Szklarski, Ronald Jackups
BACKGROUND: Cold agglutinin disease (CAD) is a rare autoimmune hemolytic anemia mediated by autoantibodies that preferentially react at 4°C. Laboratory testing for cold-reactive autoantibodies is laborious and may not be ordered judiciously, particularly in patients with a negative direct antiglobulin test (DAT). We sought to determine whether a negative DAT using anti-human complement (anti-C3) rules out elevated cold agglutinin (CA) titers and the diagnosis of CAD. STUDY DESIGN AND METHODS: We performed a retrospective study of patients with a CA test performed at three major academic medical centers: Barnes-Jewish Hospital (2003-2014), Vanderbilt University Medical Center (2007-2009), and Massachusetts General Hospital (2009-2014)...
March 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28261810/geographic-exposure-risk-of-variant-creutzfeldt-jakob-disease-in-us-blood-donors-a-risk-ranking-model-to-evaluate-alternative-donor-deferral-policies
#18
Hong Yang, Yin Huang, Luisa Gregori, David M Asher, Travis Bui, Richard A Forshee, Steven A Anderson
BACKGROUND: Variant Creutzfeldt-Jakob disease (vCJD) has been transmitted by blood transfusion (TTvCJD). The US Food and Drug Administration (FDA) recommends deferring blood donors who resided in or traveled to 30 European countries where they may have been exposed to bovine spongiform encephalopathy (BSE) through beef consumption. Those recommendations warrant re-evaluation, because new cases of BSE and vCJD have markedly abated. STUDY DESIGN AND METHODS: The FDA developed a risk-ranking model to calculate the geographic vCJD risk using country-specific case rates and person-years of exposure of US blood donors...
March 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28261808/antibodies-to-biotinylated-red-blood-cells-in-adults-and-infants-improved-detection-partial-characterization-and-dependence-on-red-blood-cell-biotin-dose
#19
Robert L Schmidt, Donald M Mock, Robert S Franco, Robert M Cohen, Anne K North, José A Cancelas, Christof Geisen, Ronald G Strauss, Alexander P Vlaar, Demet Nalbant, John A Widness
BACKGROUND: Biotin-labeled red blood cells (BioRBCs) are used for in vivo kinetic studies. Because BioRBC dosing occasionally induces antibodies, a sensitive and specific anti-BioRBC detection assay is needed. STUDY DESIGN AND METHODS: Aims were to 1) develop a gel card assay to evaluate existing, naturally occurring and BioRBC-induced plasma antibodies, 2) compare gel card and tube agglutination detection results, and 3) test for a relationship of antibody induction and BioRBC dose...
March 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28244600/a-mathematical-model-for-estimating-residual-transmission-risk-of-occult-hepatitis-b-virus-infection-with-different-blood-safety-scenarios
#20
Jos Weusten, Harry van Drimmelen, Marion Vermeulen, Nico Lelie
BACKGROUND: If anti-hepatitis B core antibody testing is not mandated blood donors with occult hepatitis B infection (OBI) may transmit hepatitis B virus (HBV) to a recipient in spite of the use of nucleic acid amplification technology (NAT) or pathogen inactivation (PI). STUDY DESIGN AND METHODS: We developed a model to estimate OBI transmission risk based on three components: the probability distribution of the viral load (VL) in a randomly selected OBI donor, the probability that a given VL remains undetected, and the probability that this VL causes infection in the recipient...
February 28, 2017: Transfusion
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