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Platelet transfusion

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https://www.readbyqxmd.com/read/28922631/surface-modification-of-platelet-concentrate-bags-to-reduce-biofilm-formation-and-transfusion-sepsis
#1
Joels S T Wilson-Nieuwenhuis, Nina Dempsey-Hibbert, Christopher M Liauw, Kathryn A Whitehead
Bacterial contamination of blood products poses a major risk in transfusion medicine, including transfusions involving platelet products. Although testing systems are in place for routine screening of platelet units, the formation of bacterial biofilms in such units may decrease the likelihood that bacteria will be detected. This work determined the surface properties of p-PVC platelet concentrate bags and investigated how these characteristics influenced biofilm formation. Serratia marcescens and Staphylococcus epidermidis, two species commonly implicated in platelet contamination, were used to study biofilm growth...
September 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28922227/incidence-and-risk-factors-of-coagulation-profile-derangement-after-liver-surgery-implications-for-the-use-of-epidural-analgesia-a-retrospective-cohort-study
#2
Pierre Jacquenod, Grégoire Wallon, Mathieu Gazon, Benjamin Darnis, Pierre Pradat, Victor Virlogeux, Olivier Farges, Frédéric Aubrun
BACKGROUND: Hepatic surgery is a major abdominal surgery. Epidural analgesia may decrease the incidence of postoperative morbidities. Hemostatic disorders frequently occur after hepatic resection. Insertion or withdrawal (whether accidental or not) of an epidural catheter during coagulopathic state may cause an epidural hematoma. The aim of the study is to determine the incidence of coagulopathy after hepatectomy, interfering with epidural catheter removal, and to identify the risk factors related to coagulopathy...
September 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28921552/immunomodulatory-effect-of-cryopreserved-platelets-altered-bdca3-dendritic-cell-maturation-and-activation-in-vitro
#3
Katrina K Ki, Lacey Johnson, Helen M Faddy, Robert L Flower, Denese C Marks, Melinda M Dean
BACKGROUND: Cryopreservation of platelets (PLTs) is useful in remote areas to overcome logistic problems associated with supply and can extend the shelf life to 2 years. During cryopreservation, properties of PLTs are modified. Whether changes in the cryopreserved PLT (CPP) product are associated with modulation of recipients' immune function is unknown. We aimed to characterize the immune profile of myeloid dendritic cells (mDCs) and the specialized blood DC antigen (BDCA)3(+) subset after exposure to CPPs...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28921542/pathogen-inactivation-of-dengue-virus-in-red-blood-cells-using-amustaline-and-glutathione
#4
Maite Aubry, Andrew Laughhunn, Felicia Santa Maria, Marion C Lanteri, Adonis Stassinopoulos, Didier Musso
BACKGROUND: Dengue virus (DENV) is an arbovirus primarily transmitted through mosquito bite; however, DENV transfusion-transmitted infections (TTIs) have been reported and asymptomatic DENV RNA-positive blood donors have been identified in endemic countries. DENV is considered a high-risk pathogen for blood safety. One of the mitigation strategies to prevent arbovirus TTIs is pathogen inactivation. In this study we demonstrate that the amustaline and glutathione (S-303/GSH) treatment previously found effective against Zika virus in red blood cells (RBCs) is also effective in inactivating DENV...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28919492/human-platelet-antigens-are-associated-with-febrile-non-hemolytic-transfusion-reactions
#5
Ding-Ping Chen, Ying-Hao Wen, Jang-Jih Lu, Ching-Ping Tseng, Wan-Ling Chen, Su-Wei Chang
BACKGROUND: Febrile non-hemolytic transfusion reaction (FNHTR) is the most common type of transfusion reactions, and it could be reduced by transfusing patients with leukocyte-poor blood products. However, FNHTR still occur in certain patients transfused with leukocyte-poor red blood cell (LPR) products. It is examined whether human platelet antigen (HPA) could be a potential membrane antigen that plays a role in FNHTR. METHODS: A total of 120 inpatient subjects who transfused with LPR (60 in FNHTR group, 60 in control group) were typed for HPA-2, HPA-3, and HPA-15 using sequence specific primer-polymerase chain reaction (SSP-PCR) and electrophoresis...
September 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28919069/impact-of-discontinuation-of-antiplatelet-therapy-prior-to-isolated-valve-and-combined-coronary-artery-bypass-graft-and-valve-procedures-on-short-and-intermediate-term-outcomes
#6
James Meneguzzi, Matthew Kilpin, Ying Yan Zhu, Atsuo Doi, Christopher Reid, Lavinia Tran, Philip Hayward, Julian Smith
BACKGROUND: A change in cardiac surgery practice over the past decade has seen an increase in urgent or inpatient referrals for surgery, with antiplatelet therapy often continued up until surgery. This study aims to identify the optimal timing for administration of aspirin to minimise risk of perioperative morbidity and mortality. METHODS: From a prospectively compiled database collected by the Australian and New Zealand Society of Cardiac and Thoracic Surgeons, we identified 8,294 patients undertaking combined CABG and valve or isolated valve procedures while discontinuing aspirin...
September 1, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28915959/measuring-salivary-blood-a-potential-in-vivo-assay-to-quantify-platelet-transfusion-efficacy
#7
Thomas J Gniadek, Shelley Pulkrabek, Claudia S Cohn
Salivary blood is known to increase in patients with intraoral mucosal bleeding. Mucosal bleeding is a frequent sequelae of thrombocytopenia, which is typically managed with platelet transfusion. Within the past few years, multiple different types of platelet products have become available, each with potential differences in efficacy. Typically, platelet transfusion efficacy is demonstrated by the increase in platelet count after transfusion. However this approach is complicated by the fact that activated platelets tend to produce lower post-transfusion platelet counts, but may be more efficacious in a bleeding patient...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28914713/the-hyperfibrinolytic-phenotype-is-the-most-lethal-and-resource-intense-presentation-of-fibrinolysis-in-massive-transfusion-patients
#8
John R Taylor, Erin E Fox, John B Holcomb, Sandro Rizoli, Kenji Inaba, Martin A Schreiber, Karen Brasel, Thomas M Scalea, Charles E Wade, Eileen Bulger, Bryan A Cotton
BACKGROUND: Among bleeding patients, we hypothesized that the hyperfibrinolytic (HF) phenotype would be associated with the highest mortality, while shutdown (SD) patients would have the greatest complication burden. METHODS: Severely injured patients predicted to receive a massive transfusion at 12 level-1 trauma centers were randomized to one of two transfusion ratios as described in the PROPPR trial. Fibrinolysis phenotypes were determined based on admission clot lysis at 30 minutes (LY30): SD ≤0...
September 13, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28914433/platelet-transfusion-refractoriness-after-t-cell-replete-haploidentical-transplantation-is-associated-with-inferior-clinical-outcomes
#9
Qiang Fu, Lanping Xu, Xiaohui Zhang, Yu Wang, Yingjun Chang, Kaiyan Liu, Xiaojun Huang
Haploidentical stem cell transplantation (haplo-SCT) has been an alternative source of bone marrow for patients without human leukocyte antigen (HLA)-matched donors. The aim of this study was to investigate the relationships between platelet transfusion refractoriness (PTR) and clinical outcomes in the setting of haplo-SCT. Between May 2012 and March 2014, 345 patients who underwent unmanipulated haplo-SCT were retrospectively enrolled. PTR occurred in 20.6% of all patients. Patients in the PTR group experienced higher transplant-related mortality (TRM, 43...
September 13, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28914279/blood-products-provided-to-patients-receiving-futile-critical-care
#10
Thanh H Neville, Alyssa Ziman, Neil S Wenger
The number of hospitalized patients receiving treatment perceived to be futile is not insignificant. Blood products are valuable resources that are donated to help others in need. We aimed to quantify the amount of blood transfused into patients who were receiving treatment that the critical care physician treating them perceived to be futile. During a 3-month period, critical care physicians in 5 adult intensive care units completed a daily questionnaire to identify patients perceived as receiving futile treatment...
September 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28913856/multiplate-and-teg-platelet-mapping-in-a-population-of-severely-injured-trauma-patients
#11
M J George, J Burchfield, B MacFarlane, Y-W W Wang, J C Cardenas, N J White, B S Gill, C E Wade
OBJECTIVES: The objectives of this study were to compare thromboelastography platelet mapping (TEG PM) with impedance aggregometry (Multiplate, MP) in a single trauma population and relate their results clinically. BACKGROUND: Platelet function as measured by thromboelastography and impedance aggregometry demonstrates significant reductions that persist for days following traumatic injury. However, no study compares these devices and the correlation between them is not known...
September 15, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28910610/platelet-transfusion-refractoriness-in-patients-with-acute-myeloid-leukemia-treated-by-intensive-chemotherapy
#12
Thibault Comont, Suzanne Tavitian, Laurent Bardiaux, Marylise Fort, Bénédicte Debiol, Danièle Morère, Emilie Bérard, Eric Delabesse, Isabelle Luquet, Salima Martinez, Françoise Huguet, Christian Récher, Sarah Bertoli
Platelet transfusion refractoriness (PTR) is a major adverse event in the management of acute myeloid leukemia (AML). In a series of 897 adult patients with AML receiving intensive chemotherapy, we identified 41 patients (4.8%) with PTR. PTR was more frequently observed in parous women, patients with extra-medullary disease, a low white blood cell count, an infection, or hemophagocytic syndrome. Among the 31 patients with anti-human leucocyte antigen (HLA) antibodies, an HLA-matched donor was identified for 18 patients (58...
August 30, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28905392/cryopreserved-platelets-demonstrate-reduced-activation-responses-and-impaired-signaling-after-agonist-stimulation
#13
Lauren Waters, Matthew P Padula, Denese C Marks, Lacey Johnson
BACKGROUND: Room temperature-stored (20-24°C) platelets (PLTs) have a shelf life of 5 days, making it logistically challenging to supply remote medical centers with PLT products. Cryopreservation of PLTs in dimethyl sulfoxide (DMSO) and storage at -80°C enables an extended shelf life up to 2 years. Although cryopreserved PLTs have been widely characterized under resting conditions, their ability to undergo agonist-induced activation is yet to be fully explored. STUDY DESIGN AND METHODS: Buffy coat PLTs were cryopreserved at -80°C with 5% to 6% DMSO and sampled before freezing and after thawing...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28905389/the-first-reported-case-of-concurrent-trimethoprim-sulfamethoxazole-induced-immune-hemolytic-anemia-and-thrombocytopenia
#14
Yevgeniy A Linnik, Edison W Tsui, Isabella W Martin, Zbigniew M Szczepiorkowski, Gregory A Denomme, Jerome L Gottschall, John M Hill, Nancy M Dunbar
BACKGROUND: Drug-induced immune hemolytic anemia (DIIHA) and drug-induced immune thrombocytopenia (DIIT) are rare but dangerous complications of pharmacotherapy that may be underrecognized in hematopoietic stem cell transplant (HSCT) patients due to overlap of signs and symptoms with those of more common disease processes. CASE REPORT: A 61-year-old woman with NK-cell deficiency and GATA-2-associated myelodysplastic syndrome, status post-recent allogeneic HSCT (Day +58), presented with 3 days of acute-onset severe back pain, muscle cramps, and increasingly dark urine...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28905381/false-positive-pregnancy-test-after-transfusion-of-solvent-detergent-treated-plasma
#15
Petra Jilma-Stohlawetz, Tim Wreford-Bush, Francesca Mills, Fiona Davidson, Friedrich W Kursten, Bernd Jilma, Janet Birchall
BACKGROUND: The transmission of pathogens, antibodies, and proteins is a possible consequence of blood product transfusion. A female patient had an unexpected positive serum β-human chorionic gonadotropin result, indicative of pregnancy, after she had received a transfusion with 1 unit of platelet concentrate, 4 units of red blood cells, and 4 units of pooled solvent/detergent-treated plasma (Octaplas). STUDY DESIGN AND METHODS: To investigate the possibility of passive transfusion of β-human chorionic gonadotropin from the plasma transfusion, one additional unit from the same batch was thawed and analyzed...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28904675/von-willebrand-s-disease-case-report-and-review-of-literature
#16
Hanae Echahdi, Brahim El Hasbaoui, Mohamed El Khorassani, Aomar Agadr, Mohamed Khattab
Von Willebrand Disease (VWD) is the most common human inherited bleeding disorder due to a defect of Von Willebrand Factor (VWF), which a glycoprotein crucial for platelet adhesion to the subendothelium after vascular injury. VWD include quantitative defects of VWF, either partial (type 1 with VWF levels < 50 IU/dL) or virtually total (type 3 with undetectable VWF levels) and also qualitative defects of VWF (type 2 variants with discrepant antigenic and functional VWF levels). The most bleeding forms of VWD usually do not concern type 1 patients with the mildest VWF defects (VWF levels between 30 and 50IU/dL)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28904480/association-of-massive-transfusion-for-resuscitation-in-gastrointestinal-bleeding-with-transfusion-related-acute-lung-injury
#17
James J Case, Nasreen Khan, Michael Delrahim, Jasmina Dizdarevic, Dane J Nichols, Martin A Schreiber, Thomas G Deloughery, Akram Khan
BACKGROUND AND AIMS: This study aimed to understand the use of massive transfusion (MT) for gastrointestinal bleeding (GIB). PATIENTS AND METHODS: We performed a retrospective analysis of patients admitted to our medical Intensive Care Unit (ICU) with GIB for the type of bleeding, quantity of blood products transfused, and risk of transfusion-related acute lung injury (TRALI) and death. MT was defined as transfusion of 10 or more units of red blood cell (RBC) within a 24-h period in a 1-unit RBC: 1-unit fresh frozen plasma: and 1-unit platelet ratio...
August 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28902964/plasmatic-coagulation-and-fibrinolysis-in-healthy-and-otostrongylus-affected-northern-elephant-seals-mirounga-angustirostris
#18
Sarrah Kaye, Shawn Johnson, Carlos Rios, Daniel J Fletcher
BACKGROUND: Prepatent Otostrongylus arteritis results in hemorrhagic diathesis in free-ranging Northern elephant seals (Mirounga angustirostris) attributed to aberrant larval migration of the lungworm, Otostrongylus circumlitus. Clinical signs are often nonspecific, including lethargy, anorexia, and blepharospasm, but can progress to spontaneous frank hemorrhage and death within 72 hours of onset. Previously published case reports describe coagulopathy with prolonged PT and APTT, normal to elevated platelet counts, normal antithrombin concentrations, and low concentrations of fibrinogen degradation products...
September 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28891209/blood-component-transfusions-in-mass-casualty-events
#19
G Ramsey
BACKGROUND AND OBJECTIVES: Planning transfusion needs in mass casualty events (MCE) is critical for disaster preparedness. Published data on blood component usage were analysed to seek correlative factors and usage rates. MATERIALS AND METHODS: English-language medical publications since 1980 were searched for MCEs with numbers of patient admissions and transfused RBCs. Reports were excluded from natural disasters or with total RBC use <50 units. Statistical analysis employed Mann-Whitney U-tests and Spearman's rank correlations...
September 10, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28885446/implementing-a-health-system-wide-patient-blood-management-program-with-a-clinical-community-approach
#20
Steven M Frank, Rajiv N Thakkar, Stanley J Podlasek, K H Ken Lee, Tyler L Wintermeyer, Will W Yang, Jing Liu, Leo C Rotello, Thomas A Fleury, Pat A Wachter, Lisa E Ishii, Renee Demski, Peter J Pronovost, Paul M Ness
BACKGROUND: Patient blood management programs are gaining popularity as quality improvement and patient safety initiatives, but methods for implementing such programs across multihospital health systems are not well understood. Having recently incorporated a patient blood management program across our health system using a clinical community approach, we describe our methods and results. METHODS: We formed the Johns Hopkins Health System blood management clinical community to reduce transfusion overuse across five hospitals...
September 7, 2017: Anesthesiology
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