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https://www.readbyqxmd.com/read/28225743/damage-control-resuscitation-in-patients-with-severe-traumatic-hemorrhage-a-practice-management-guideline-from-the-eastern-association-for-the-surgery-of-trauma
#1
Jeremy W Cannon, Mansoor A Khan, Ali S Raja, Mitchell J Cohen, John J Como, Bryan A Cotton, Joseph J Dubose, Erin E Fox, Kenji Inaba, Carlos J Rodriguez, John B Holcomb, Juan C Duchesne
BACKGROUND: The resuscitation of severely injured bleeding patients has evolved into a multi-modal strategy termed damage control resuscitation (DCR). This guideline evaluates several aspects of DCR including the role of massive transfusion (MT) protocols, the optimal target ratio of plasma (PLAS) and platelets (PLT) to red blood cells (RBC) during DCR, and the role of recombinant activated factor VII (rVIIa) and tranexamic acid (TXA). METHODS: Using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology, a subcommittee of the Practice Management Guidelines (PMG) Section of EAST conducted a systematic review using MEDLINE and EMBASE...
March 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28216081/decreased-calcium-pump-expression-in-human-erythrocytes-is-connected-to-a-minor-haplotype-in-the-atp2b4-gene
#2
Boglárka Zámbó, György Várady, Rita Padányi, Edit Szabó, Adrienn Németh, Tamás Langó, Ágnes Enyedi, Balázs Sarkadi
Plasma membrane Ca(2+)-ATPases are key calcium exporter proteins in most tissues, and PMCA4b is the main calcium transporter in the human red blood cells (RBCs). In order to assess the expression level of PMCA4b, we have developed a flow cytometry and specific antibody binding method to quantitatively detect this protein in the erythrocyte membrane. Interestingly, we found several healthy volunteers showing significantly reduced expression of RBC-PMCA4b. Western blot analysis of isolated RBC membranes confirmed this observation, and indicated that there are no compensatory alterations in other PMCA isoforms...
February 3, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28198023/patient-outcomes-and-amotosalen-uva-treated-platelet-utilization-in-massively-transfused-patients
#3
W Nussbaumer, M Amato, H Schennach, M Astl, C Y Chen, J-S Lin, L Corash, R J Benjamin
BACKGROUND: Amotosalen/UVA-treated platelet concentrates (PCs) have demonstrated efficacy for treating and preventing bleeding in clinical trials and in routine use; however, most studies were performed in haematology/oncology patients. We investigated efficacy during massive transfusion (MT) in general hospitalized patients. METHODS: Universal amotosalen/UVA treatment (INTERCEPT Blood System) of platelets was introduced at a large Austrian medical centre. We performed a retrospective cohort analysis comparing component use, in-hospital mortality and length of stay after MT that included platelet transfusion, for two periods (21 months each) before and after implementation...
February 15, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28196608/management-of-major-bleeding-events-in-patients-treated-with-dabigatran-for-nonvalvular-atrial-fibrillation-a-retrospective-multicenter-review
#4
Truman J Milling, Christian Fromm, Michael Ganetsky, Daniel J Pallin, Julie Cong, Adam J Singer
STUDY OBJECTIVE: There are limited data on the clinical presentations and management of dabigatran-associated major bleeding outside the clinical trial setting. The aim of this study is to describe clinical characteristics, interventions, and outcomes in patients with dabigatran-associated major bleeding who present to the emergency department (ED). METHODS: We performed a retrospective observational chart review study of dabigatran-treated patients with nonvalvular atrial fibrillation who presented with acute major bleeding to the ED...
February 3, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28187013/the-effectiveness-and-safety-of-tranexamic-acid-in-orthotopic-liver-transplantation-clinical-practice-a-propensity-score-matched-cohort-study
#5
Adam Badenoch, Anand Sharma, Simon Gower, Markus Selzner, Coimbatore Srinivas, Marcin Wasowics, Stuart A McCluskey
BACKGROUND: Randomized trials have demonstrated the efficacy of Tranexamic acid (TXA) in reducing blood loss and transfusion requirements during liver transplantation. However, clinical utilization is limited due to a perceived lack of generalizable effectiveness and concerns regarding its thromboembolic risks. The aim of this study was to describe the clinical use of TXA and to provide a pragmatic re-appraisal of its effectiveness and safety. METHODS: Following ethics approval, data was collected from 1,799 consecutive liver transplant recipients between January 1st 2002 and December 31st 2015 using retrospectively collected electronic databases...
February 10, 2017: Transplantation
https://www.readbyqxmd.com/read/28169829/variability-of-cholesterol-accessibility-in-human-red-blood-cells-measured-using-a-bacterial-cholesterol-binding-toxin
#6
Rima S Chakrabarti, Sally A Ingham, Julia Kozlitina, Austin Gay, Jonathan C Cohen, Arun Radhakrishnan, Helen H Hobbs
Cholesterol partitions into accessible and sequestered pools in cell membranes. Here we describe a new assay using fluorescently-tagged anthrolysin O, a cholesterol-binding bacterial toxin, to measure accessible cholesterol in human red blood cells (RBCs). Accessible cholesterol levels were stable within individuals but varied >10-fold among individuals. Significant variation was observed among ethnic groups (Blacks>Hispanics>Whites). Variation in accessibility of RBC cholesterol was unrelated to the cholesterol content of RBCs or plasma, but was associated with the phospholipid composition of the RBC membranes and with plasma triglyceride levels...
February 7, 2017: ELife
https://www.readbyqxmd.com/read/28167878/commercial-separation-systems-designed-for-preparation-of-platelet-rich-plasma-yield-differences-in-cellular-composition
#7
Ryan M Degen, Johnathan A Bernard, Kristin S Oliver, Joshua S Dines
BACKGROUND: The role of platelet-rich plasma (PRP) in the treatment of sport-related injuries is unclear, largely due to the heterogeneity of clinical results. This may relate to compositional differences in PRP from different separation systems. QUESTIONS/PURPOSES: This study aims to compare the composition of PRP produced with five different commercially available systems, focusing on cellular concentrations and pH. METHODS: Seven donors (41 ± 12 years) provided blood for PRP preparation using five systems (Arthrex Angel, Emcyte Genesis CS, Arteriocyte Magellan, Harvest SmartPrep, and Biomet GPS III)...
February 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28164544/clinical-significance-of-red-blood-cell-distribution-width-and-inflammatory-factors-for-the-disease-activity-in-rheumatoid-arthritis
#8
Li Yunchun, Wang Yue, Fang Z Jun, Su Qizhu, Ding Liumei
BACKGROUND: To evaluate the significance of red blood cell distribution width (RDW) and other factors for the disease activity in rheumatoid arthritis (RA). METHODS: Each patient underwent clinical examination and blood sampling for assessment of serum high-sensitivity C-reactive protein (hs-CRP) levels, erythrocyte sedimentation rate (ESR), hemoglobin concentration (Hb), hematocrit (HCT), RDW, and other erythrocyte parameters (mean corpuscular volume [MCV], mean cell Hb [MCH], mean corpuscular Hb concentration [MCHC])...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28155717/sph-dem-approach-to-numerically-simulate-the-deformation-of-three-dimensional-rbcs-in-non-uniform-capillaries
#9
Hasitha-Nayanajith Polwaththe-Gallage, Suvash C Saha, Emilie Sauret, Robert Flower, Wijitha Senadeera, YuanTong Gu
BACKGROUND: Blood continuously flows through the blood vessels in the human body. When blood flows through the smallest blood vessels, red blood cells (RBCs) in the blood exhibit various types of motion and deformed shapes. Computational modelling techniques can be used to successfully predict the behaviour of the RBCs in capillaries. In this study, we report the application of a meshfree particle approach to model and predict the motion and deformation of three-dimensional RBCs in capillaries...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28150313/improved-outcomes-and-reduced-costs-associated-with-a-health-system-wide-patient-blood-management-program-a-retrospective-observational-study-in-four-major-adult-tertiary-care-hospitals
#10
Michael F Leahy, Axel Hofmann, Simon Towler, Kevin M Trentino, Sally A Burrows, Stuart G Swain, Jeffrey Hamdorf, Trudi Gallagher, Audrey Koay, Gary C Geelhoed, Shannon L Farmer
BACKGROUND: Patient blood management (PBM) programs are associated with improved patient outcomes, reduced transfusions and costs. In 2008, the Western Australia Department of Health initiated a comprehensive health-system-wide PBM program. This study assesses program outcomes. STUDY DESIGN AND METHODS: This was a retrospective study of 605,046 patients admitted to four major adult tertiary-care hospitals between July 2008 and June 2014. Outcome measures were red blood cell (RBC), fresh-frozen plasma (FFP), and platelet units transfused; single-unit RBC transfusions; pretransfusion hemoglobin levels; elective surgery patients anemic at admission; product and activity-based costs of transfusion; in-hospital mortality; length of stay; 28-day all-cause emergency readmissions; and hospital-acquired complications...
February 2, 2017: Transfusion
https://www.readbyqxmd.com/read/28132162/population-pharmacokinetics-and-pharmacodynamics-of-ionis-gcgrrx-an-antisense-oligonucleotide-for-type-2-diabetes-mellitus-a-red-blood-cell-lifespan-model
#11
Kenneth T Luu, Erin S Morgan, Sanjay Bhanot, Richard Geary, Anne Smith, Claudette Bethune, Lynnetta Watts, Scott Henry, Yanfeng Wang
IONIS-GCGRRx (ISIS 449884) is an antisense oligonucleotide inhibitor of the glucagon receptor (GCGR). The objective of this study was to evaluate the pharmacokinetics (PK) and pharmacodynamics (PD) of IONIS-GCGRRx via population-based modeling. The observed data were obtained from a Phase 1 (50, 100, 200, 300 and 400 mg) single- and multiple-dose study in healthy volunteers and a Phase 2 (100 and 200 mg) multiple-dose study in T2DM patients. The PK of IONIS GCGRRx was characterized by two primary systemic compartments and three absorption transit compartments with elimination out of the peripheral compartment...
January 28, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28131925/prevalence-and-impact-of-admission-acute-traumatic-coagulopathy-on-treatment-intensity-resource-utilization-and-mortality-an-evaluation-of-956-severely-injured-children-and-adolescents
#12
Ioannis N Liras, Henry W Caplan, Jakob Stensballe, Charles E Wade, Charles S Cox, Bryan A Cotton
INTRODUCTION: Acute coagulopathy of trauma in children are of potential importance to clinical outcome, but knowledge is limited and has only been investigated using conventional coagulation testing (CCT). The purpose of this study was to assess the prevalence and impact of arrival coagulopathy, determined by viscoelastic hemostatic testing, in severely injured children. METHODS: Pediatric patients (<17 years of age) who were admitted 01/2010-05/2016 and met highest-level trauma activation were included...
January 25, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28124500/efficacy-safety-and-pharmacokinetics-of-subcutaneous-azacitidine-in-taiwanese-patients-with-higher-risk-myelodysplastic-syndromes
#13
Wen-Chien Chou, Su-Peng Yeh, Liang-Tsai Hsiao, Sheng-Fung Lin, Yeu-Chin Chen, Tsai-Yun Chen, Eric Laille, Anoula Galettis, Qian Dong, Steve Songer, C L Beach
AIM: Clinical and pharmacokinetic effects of azacitidine in higher-risk myelodysplastic syndromes were established in mainly Caucasian populations. Because of inter-ethnic genotype variability of drug-metabolizing enzymes, it is important to evaluate azacitidine in populations expected to use the drug. METHODS: In this single-arm study, Taiwanese patients with higher-risk myelodysplastic syndromes received azacitidine 75 mg/m(2) /day for 7 days/28-day cycle for up to six cycles...
January 25, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28123561/a-methodological-procedure-for-evaluating-the-impact-of-hemolysis-on-circulating-micrornas
#14
Sara Pizzamiglio, Susanna Zanutto, Chiara M Ciniselli, Antonino Belfiore, Stefano Bottelli, Manuela Gariboldi, Paolo Verderio
Circulating microRNAs (miRNAs) are promising non-invasive biomarkers whose expression may be affected by confounding factors, including hemolysis, that should be considered in studies of miRNA discovery. The present study proposes a methodology for evaluating the impact of hemolysis on the expression of miRNAs. An experiment of in vitro controlled hemolysis was designed for assessing if changes in the expression of eight miRNAs observed to be circulating in plasma may be associated with hemolysis, and also to estimate the level of red blood cell (RBC) contamination in plasma samples where the expression of these miRNAs will be measured...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28122491/mild-volume-acute-normovolemic-hemodilution-is-associated-with-lower-intraoperative-transfusion-and-postoperative-pulmonary-infection-in-patients-undergoing-cardiac-surgery-a-retrospective-propensity-matching-study
#15
Zhen-Feng Zhou, Xiu-Ping Jia, Kai Sun, Feng-Jiang Zhang, Li-Na Yu, Tian Xing, Min Yan
BACKGROUND: Perioperative allogenic transfusion is required in almost 50% of patients undergoing cardiac surgery and is associated with higher risk of mortality and morbidity (Xue et al., Lancet 387:1905, 2016; Ferraris et al., Ann Thorac Surg 91:944-82, 2011). Acute normovolemic hemodilution (ANH) is recommended as a potential strategy during cardiac surgery, but the blood conservation effect and the degree of ANH was still controversial. There is also an increasing concern about the improved outcomes associated with ANH...
January 26, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28120854/fruit-and-vegetables-consumption-is-associated-with-higher-vitamin-intake-and-blood-vitamin-status-among-european-adolescents
#16
J Mielgo-Ayuso, J Valtueña, I Huybrechts, C Breidenassel, M Cuenca-García, S De Henauw, P Stehle, A Kafatos, M Kersting, K Widhalm, Y Manios, E Azzini, D Molnar, L A Moreno, M González-Gross
BACKGROUND/OBJECTIVES: Current research in adults indicates that fruit and vegetable (FAV) consumption increases serum levels of vitamins C, E and folate of β-carotene and reduces homocysteine concentrations. The aim of the present study was to examine the association of FAV consumption on vitamin intakes and their impact on blood vitamin concentrations in European adolescents. SUBJECT/METHODS: This multi-center cross-sectional study included 702 (53.7% females) adolescents, aged 12...
January 25, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28109111/-efficacy-of-high-versus-low-plasma-red-blood-cell-ratio-resuscitation-in-patients-with-severe-trauma-requiring-massive-blood-transfusion-a-meta-analysis
#17
Fang Yu, Tao Zhong, Gang Wu
OBJECTIVE: To evaluate the efficacy of high (≥1:2) and low (<1:2) plasma: red blood cell (RBC) ratio resuscitation in patients with severe trauma requiring massive blood transfusion. METHODS: The databases including the Cochrane Library, Pubmed, Web of Science, and EMBASE were systemically searched for relevant studies published between January, 2009 and April, 2016. The selection of studies, assessment of methodological quality and data extraction were performed by two researchers independently according to the inclusion and exclusion criteria...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28105697/association-of-hematocrit-with-blood-pressure-and-hypertension
#18
Marzieh Emamian, Seyed Mahdi Hasanian, Maryam Tayefi, Moniba Bijari, Faeze Movahedian Far, Mojtaba Shafiee, Amir Avan, Alireza Heidari-Bakavoli, Mohsen Moohebati, Mahmoud Ebrahimi, Sousan Darroudi, Parvin Zamani, Mahmoud Reza Azarpazhooh, Mohsen Nematy, Mohammad Safarian, Gordon A Ferns, Habibollah Esmaeili, Mohammad Reza Parizadeh, Majid Ghayour-Mobarhan
BACKGROUND: Hypertension (HTN) is a risk factor for stroke, renal failure, and cardiovascular disease. The association between biochemical and hematological parameters with high blood pressure may provide a more precise approach to risk prediction conferred by HTN in these patients. OBJECTIVE: The aim of current study was to explore whether biochemical and hematological parameters are associated with HTN in a cohort study with a 7-year follow-up. MATERIALS AND METHODS: A total of 9808 individuals were enrolled and recruited as part of the Mashhad Stroke and Heart Atherosclerotic Disorders (MASHAD) cohort study, and biochemical and hematological factors were measured in all subjects...
January 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28104698/periconceptional-maternal-one-carbon-biomarkers-are-associated-with-embryonic-development-according-to-the-carnegie-stages
#19
F Parisi, M Rousian, A H J Koning, S P Willemsen, I Cetin, R P M Steegers-Theunissen
STUDY QUESTION: Is periconceptional maternal one-carbon (I-C) metabolism associated with embryonic morphological development in non-malformed ongoing pregnancies? SUMMARY ANSWER: Serum vitamin B12, red blood cell (RBC) folate and plasma total homocysteine (tHcy) are associated with embryonic development according to the Carnegie stages. WHAT IS KNOWN ALREADY: Derangements in maternal I-C metabolism affect reproductive and pregnancy outcomes, as well as future health of the offspring...
January 18, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28099525/polyethylene-glycol-camouflaged-earthworm-hemoglobin
#20
Vivek P Jani, Alborz Jelvani, Selamawit Moges, Parimala Nacharaju, Camille Roche, David Dantsker, Andre Palmer, Joel M Friedman, Pedro Cabrales
Nearly 21 million components of blood and whole blood and transfused annually in the United States, while on average only 13.6 million units of blood are donated. As the demand for Red Blood Cells (RBCs) continues to increase due to the aging population, this deficit will be more significant. Despite decades of research to develop hemoglobin (Hb) based oxygen (O2) carriers (HBOCs) as RBC substitutes, there are no products approved for clinical use. Lumbricus terrestris erythrocruorin (LtEc) is the large acellular O2 carrying protein complex found in the earthworm Lumbricus terrestris...
2017: PloS One
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