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https://www.readbyqxmd.com/read/28073857/first-newborn-baby-to-receive-experimental-therapies-survives-ebola-virus-disease
#1
Jenny Dörnemann, Chiara Burzio, Axelle Ronsse, Armand Sprecher, Hilde De Clerck, Michel Van Herp, Marie-Claire Kolié, Vesselina Yosifiva, Severine Caluwaerts, Anita K McElroy, Annick Antierens
A neonate born to an Ebola virus-positive woman was diagnosed with Ebola virus infection on her first day of life. The patient was treated with monoclonal antibodies (ZMapp), a buffy coat transfusion from an Ebola survivor, and the broad-spectrum antiviral GS-5734. On day 20, a venous blood specimen tested negative for Ebola virus by quantitative reverse-transcription polymerase chain reaction. The patient was discharged in good health on day 33 of life. Further follow-up consultations showed age-appropriate weight gain and neurodevelopment at the age of 12 months...
January 9, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28070919/clinical-utility-of-the-basophil-activation-test-for-analysis-of-allergic-transfusion-reactions-a-pilot-study
#2
I Okamura, N Matsuyama, K Yasui, F Hirayama, T Ikeda
BACKGROUND AND OBJECTIVES: In previous studies, we demonstrated that the basophil-activating effects of supernatants found in residual-transfused platelet concentrates (PC-SNs) on whole blood basophils in cases of allergic transfusion reactions (ATRs) could be assessed by the basophil activation test (BAT) in terms of allergen/IgE dependency. However, in these studies, the basophils were derived from third-party healthy volunteers. In this study, we performed BAT using patients' own blood basophils to analyse ATRs...
January 10, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28065763/the-kidd-jk-blood-group-system
#3
REVIEW
Shaun Lawicki, Randal B Covin, Amy A Powers
The Kidd blood group system was discovered in 1951 and is composed of 2 antithetical antigens, Jk(a) and Jk(b), along with a third high-incidence antigen, Jk3. The Jk3 antigen is expressed in all individuals except those with the rare Kidd-null phenotype. Four Kidd phenotypes are therefore possible: Jk(a+b-), Jk(a-b+), Jk(a+b+), and Jk(a-b-). The glycoprotein carrying the Kidd antigens is a 43-kDa, 389-amino acid protein with 10 membrane-spanning domains which functions as a urea transporter on endothelial cells of the renal vasa recta as well as erythrocytes...
November 9, 2016: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28058946/evaluation-of-eicosanoid-concentrations-in-stored-units-of-canine-packed-red-blood-cells
#4
Rachel R Blake, Jung Hwa Lee, Matt K Ross, Todd M Archer, Robert W Wills, Andrew J Mackin, John M Thomason
OBJECTIVE To evaluate eicosanoid concentrations in freshly prepared canine packed RBCs (PRBCs) and to assess changes in eicosanoid concentrations in PRBC units over time during storage and under transfusion conditions. DESIGN Prospective study. SAMPLE 25 plasma samples from 14 healthy Greyhounds. PROCEDURES Plasma samples were obtained during PRBC preparation (donation samples), and the PRBC units were then stored at 4°C until used for transfusion (≤ 21 days later; n = 17) or mock transfusion if expired (22 to 24 days later; 8)...
January 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28055579/guidelines-for-the-direct-detection-of-anaplasma-spp-in-diagnosis-and-epidemiological-studies
#5
Cornelia Silaghi, Ana Sofia Santos, Jacinto Gomes, Iva Christova, Ioana Adriana Matei, Gernot Walder, Ana Domingos, Lesley Bell-Sakyi, Hein Sprong, Friederike D von Loewenich, José A Oteo, José de la Fuente, J Stephen Dumler
The genus Anaplasma (Rickettsiales: Anaplasmataceae) comprises obligate intracellular Gram-negative bacteria that are mainly transmitted by ticks, and currently includes six species: Anaplasma bovis, Anaplasma centrale, Anaplasma marginale, Anaplasma phagocytophilum, Anaplasma platys, and Anaplasma ovis. These have long been known as etiological agents of veterinary diseases that affect domestic and wild animals worldwide. A zoonotic role has been recognized for A. phagocytophilum, but other species can also be pathogenic for humans...
January 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28050389/haemovigilance-a-current-update-in-indian-perspective
#6
REVIEW
Somnath Mukherjee, Rituparna Maiti
Haemovigilance is an organised scheme of monitoring, identifying, reporting, investigating and analysing adverse events and reactions pertinent to transfusion and manufacturing blood products. This system is also an elemental part of quality control in a blood system, bringing about corrective and preventive measures, and for the perpetual advancement of the quality and safety of blood products and the transfusion process. Nowadays haemovigilance setups have been enforced throughout the globe in most developed countries, to monitor the adverse reactions and episodes associated with blood donations and transfusions...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28045721/case-report-red-urine-after-day-care-strabismus-surgery
#7
Pregardien Caroline, Nassogne Marie-Cécile, Yuksel Demet, Veyckemans Francis
In the absence of surgery on the urinary tract, the emission of red urine after anesthesia should be considered as a diagnostic emergency because it can be a sign of hematuria, hemoglobinuria, blood transfusion reaction, significant myoglobinuria, or porphyria.This case describes the management of a 12-year-old boy who presented red urine at the day care unit after strabismus surgery.
December 30, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/28028997/comparative-analysis-of-clinical-samples-showing-weak-serum-reaction-on-autovue-system-causing-abo-blood-typing-discrepancies
#8
Su Yeon Jo, Ju Mi Lee, Hye Lim Kim, Kyeong Hwa Sin, Hyeon Ji Lee, Chulhun Ludgerus Chang, Hyung Hoi Kim
BACKGROUND: ABO blood typing in pre-transfusion testing is a major component of the high workload in blood banks that therefore requires automation. We often experienced discrepant results from an automated system, especially weak serum reactions. We evaluated the discrepant results by the reference manual method to confirm ABO blood typing. METHODS: In total, 13,113 blood samples were tested with the AutoVue system; all samples were run in parallel with the reference manual method according to the laboratory protocol...
March 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28027853/a-haemovigilance-team-provides-both-significant-financial-and-quality-benefits-in-a-university-hospital
#9
Ine Decadt, Els Costermans, Maai Van de Poel, Katrien Kesteloot, Timothy Devos
BACKGROUND: Haemovigilance is the process of surveillance of blood transfusion procedures including unexpected hazards and reactions during the transfusion pathway in both donors and recipients. The haemovigilance team aims to increase blood transfusion safety and to decrease both morbidity and mortality in donors and recipients. The team collects data about transfusion reactions and incidents, instructs the involved health workers and assures the tracing of blood components. The haemovigilance team at the University Hospitals Leuven has played a pioneering role in the development of haemovigilance in Belgium Although the literature about safety and quality improvements by haemovigilance systems is abundant, there are no published data available measuring their financial impact in a hospital...
December 7, 2016: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28019030/histone-deacetylase-inhibitors-suppress-abo-transcription-in-vitro-leading-to-reduced-expression-of-the-antigens
#10
Yoichiro Takahashi, Rieko Kubo, Rie Sano, Tamiko Nakajima, Keiko Takahashi, Momoko Kobayashi, Hiroshi Handa, Junichi Tsukada, Yoshihiko Kominato
BACKGROUND: The ABO system is of fundamental importance in the fields of transfusion and transplantation and has apparent associations with certain diseases, including cardiovascular disorders. ABO expression is reduced in the late phase of erythroid differentiation in vitro, whereas histone deacetylase inhibitors (HDACIs) are known to promote cell differentiation. Therefore, whether or not HDACIs could reduce the amount of ABO transcripts and A or B antigens is an intriguing issue. STUDY DESIGN AND METHODS: Quantitative polymerase chain reactions were carried out for the ABO transcripts in erythroid-lineage K562 and epithelial-lineage KATOIII cells after incubation with HDACIs, such as sodium butyrate, panobinostat, vorinostat, and sodium valproate...
December 26, 2016: Transfusion
https://www.readbyqxmd.com/read/28019009/restrictive-versus-liberal-red-blood-cell-transfusion-strategy-after-hip-surgery-a-decision-model-analysis-of-healthcare-costs
#11
Mario V Fusaro, Nathan D Nielsen, Alexandra Nielsen, Magali J Fontaine, John R Hess, Robert M Reed, Sylvain DeLisle, Giora Netzer
BACKGROUND: Red blood cell transfusion related to select surgical procedures accounts for approximately 2.8 million transfusions in the United States yearly and occurs commonly after hip fracture surgeries. Randomized controlled trials have demonstrated lack of clinical benefit with higher versus lower transfusion thresholds in postoperative hip fracture repair patients with cardiac disease or risk factors for cardiac disease. The economic implications of a higher versus lower hemoglobin (Hb) threshold have not yet been investigated...
December 26, 2016: Transfusion
https://www.readbyqxmd.com/read/28012898/development-of-a-high-throughput-multiplexed-real-time-rt-pcr-assay-for-detection-of-human-pegivirus-1-and-2
#12
Matthew Frankel, Kenn Forberg, Kelly E Coller, Michael G Berg, John Hackett, Gavin Cloherty, George J Dawson
Human Pegivirus 2 (HPgV-2) was recently identified in the bloodstream of HCV-infected and multiply transfused individuals. Initial reports show HPgV-2 circulates at a low prevalence in HCV co-infected individuals, necessitating testing of large cohorts of samples to identify infected persons. The identification of additional HPgV-2 cases was facilitated by the development of a high throughput and reliable molecular reverse transcription polymerase chain reaction (RT-PCR) assay intended for use on the automated Abbott m2000 system with a capability of extracting and testing 96 samples at once...
December 22, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/28007780/ficin-treated-red-cells-help-identify-clinically-significant-alloantibodies-masked-as-reactions-of-undetermined-specificity-in-gel-microtubes
#13
Ben C Hill, Courtney A Hanna, Jill Adamski, Huy P Pham, Marisa B Marques, Lance A Williams
Non-specific antibodies or antibodies of undetermined significance (AUS) often pose problems for a blood bank technologist and physician. It is well known that antibodies can weaken and evanesce over time, thus eluding detection by routine blood bank techniques. Special enhancement techniques exist (eg, ficin treatment); however, they are often underutilized due to concerns over expense. Ficin is known to enhance reactivity caused by antibodies in the ABO, Rh, Kidd, Lewis, I, and P blood group systems, while destroying reactivity of antibodies in the Duffy, and MNS blood group systems...
December 22, 2016: Laboratory Medicine
https://www.readbyqxmd.com/read/28005272/prophylactic-versus-selective-blood-transfusion-for-sickle-cell-disease-in-pregnancy
#14
REVIEW
Babasola O Okusanya, Olufemi T Oladapo
BACKGROUND: Pregnant women with sickle cell disease (HbSS, HbSC and HbSβThal) may require blood transfusion to prevent severe anaemia or to manage potential medical complications. Preventive blood transfusion in the absence of complications starting from the early weeks of pregnancy or blood transfusion only for medical or obstetric indications have been used as management policies. There is currently no consensus on the blood transfusion policy that guarantees optimal clinical benefits with minimal risks for such women and their babies...
22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28005161/-epidural-anesthesia-for-fetoscopy-retrospective-analysis-of-a%C3%A2-one-year-cohort
#15
N Kiefer, S F Suter, C Berg, U Gembruch, S U Weber
BACKGROUND: The introduction of routine prenatal screening using ultrasound has led to a substantial increase in diagnoses of fetal disorders that are amenable to intrauterine treatment. While an ultrasound guided insertion of small bore cannulas can be performed under local anesthesia, insertion of a fetoscope usually requires anesthetic management for the mother and the fetus. Additionally, the fetus' intrauterine position may have to be manipulated in order to enable access. Such manoeuvres depend on relaxation of the mother's abdominal wall...
December 22, 2016: Der Anaesthesist
https://www.readbyqxmd.com/read/28001310/the-association-of-fever-with-transfusion-associated-circulatory-overload
#16
N Parmar, J Pendergrast, L Lieberman, Y Lin, J Callum, C Cserti-Gazdewich
BACKGROUND: Fever is described in transfusion-associated circulatory overload (TACO), reflecting either comprehensive haemovigilance or an inflammatory pathobiology (such as congestion-associated atheroma disruptions). METHODS: Hospital haemovigilance data (1/1/2010-31/12/2012) were reviewed for TACO cases (frequency and mode of referral). TACO with or without fever (TACO+F/-F) was examined for its association with patient age (as a surrogate for atheroma burden) and product age (as a surrogate for storage-related pyrogens)...
December 21, 2016: Vox Sanguinis
https://www.readbyqxmd.com/read/28000304/discriminating-the-hemolytic-risk-of-blood-type-a-plasmas-using-the-complement-hemolysis-using-human-erythrocytes-chuhe-assay
#17
Kenji M Cunnion, Pamela S Hair, Neel K Krishna, Megan A Sass, Clinton W Enos, Pamela H Whitley, Lanne Y Maes, Corinne L Goldberg
BACKGROUND: The agglutination-based cross-matching method is sensitive for antibody binding to red blood cells but is only partially predictive of complement-mediated hemolysis, which is important in many acute hemolytic transfusion reactions. Here, we describe complement hemolysis using human erythrocytes (CHUHE) assays that directly evaluate complement-mediated hemolysis between individual serum-plasma and red blood cell combinations. The CHUHE assay is used to evaluate correlations between agglutination titers and complement-mediated hemolysis as well as the hemolytic potential of plasma from type A blood donors...
December 20, 2016: Transfusion
https://www.readbyqxmd.com/read/27991657/molecular-typing-for-blood-group-antigens-within-40%C3%A2-min-by-direct-polymerase-chain-reaction-from-plasma-or-serum
#18
Franz F Wagner, Willy A Flegel, Rita Bittner, Andrea Döscher
Determining blood group antigens by serological methods may be unreliable in certain situations, such as in patients after chronic or massive transfusion. Red cell genotyping offers a complementary approach, but current methods may take much longer than conventional serological typing, limiting their utility in urgent situations. To narrow this gap, we devised a rapid method using direct polymerase chain reaction (PCR) amplification while avoiding the DNA extraction step. DNA was amplified by PCR directly from plasma or serum of blood donors followed by a melting curve analysis in a capillary rapid-cycle PCR assay...
December 19, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27965664/transfusion-as-an-inflammation-hit-knowns-and-unknowns
#19
REVIEW
Olivier Garraud, S Tariket, C Sut, A Haddad, C Aloui, T Chakroun, S Laradi, F Cognasse
Transfusion of blood cell components is frequent in the therapeutic arsenal; it is globally safe or even very safe. At present, residual clinical manifestations are principally inflammatory in nature. If some rare clinical hazards manifest as acute inflammation symptoms of various origin, most of them linked with conflicting and undesirable biological material accompanying the therapeutic component (infectious pathogen, pathogenic antibody, unwanted antigen, or allergen), the general feature is subtler and less visible, and essentially consists of alloimmunization or febrile non-hemolytic transfusion reaction...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27959967/transfusion-80%C3%A2-c-frozen-blood-products-are-safe-and-effective-in-military-casualty-care
#20
Femke Noorman, Thijs T C F van Dongen, Marie-Christine J Plat, John F Badloe, John R Hess, Rigo Hoencamp
INTRODUCTION: The Netherlands Armed Forces use -80°C frozen red blood cells (RBCs), plasma and platelets combined with regular liquid stored RBCs, for the treatment of (military) casualties in Medical Treatment Facilities abroad. Our objective was to assess and compare the use of -80°C frozen blood products in combination with the different transfusion protocols and their effect on the outcome of trauma casualties. MATERIALS AND METHODS: Hemovigilance and combat casualties data from Afghanistan 2006-2010 for 272 (military) trauma casualties with or without massive transfusions (MT: ≥6 RBC/24hr, N = 82 and non-MT: 1-5 RBC/24hr, N = 190) were analyzed retrospectively...
2016: PloS One
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