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https://www.readbyqxmd.com/read/28732053/dysregulation-of-pulmonary-endothelial-protein-c-receptor-and-thrombomodulin-in-severe-falciparum-malaria-associated-ards-relevant-to-hemozoin
#1
Sitang Maknitikul, Natthanej Luplertlop, Georges E R Grau, Sumate Ampawong
To investigate the role of the protein C system, endothelial protein C receptor (EPCR) and thrombomodulin (TM) in the pathogenesis of malaria-associated acute respiratory distress syndrome (ARDS) in relation to hemozoin and proinflammatory cytokines-induced type II pneumocyte injury and -aggravated pulmonary resolution. A total of 29 left-over lung specimens that were obtained from patients who died from severe falciparum malaria were examined. Histopathological, immunohistochemical and electron microscopic analyses revealed that ARDS coexisted with pulmonary edema and systemic bleeding; the severity was dependent on the level of hemozoin deposition in the lung and internal alveolar hemorrhaging...
2017: PloS One
https://www.readbyqxmd.com/read/28720216/the-effects-of-red-cell-transfusion-donor-age-on-nosocomial-infection-among-trauma-patients
#2
Tyler J Loftus, Ryan M Thomas, Travis W Murphy, Linda L Nguyen, Frederick A Moore, Scott C Brakenridge, Philip A Efron, Alicia M Mohr
BACKGROUND: We hypothesized that packed red blood cell (PRBC) transfusions from older donors would be associated with fewer nosocomial infections among trauma patients. METHODS: We performed a four-year retrospective analysis of 264 consecutive adult trauma patients who received ≥1 PRBC transfusion during admission. The capacity of donor age to predict nosocomial infection was assessed by logistic regression. RESULTS: Thirty-three percent of all patients developed a nosocomial infection...
July 12, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28712305/from-donor-to-recipient-considerations-for-blood-transfusion-outcomes-research
#3
Allison R Jones, Michelle R Brown, David E Vance
Donated blood can be broken down into blood components for use in patient care. This article focuses primarily on packed red blood cells (PRBCs), as they experience breakdown during storage that may adversely impact patient outcomes. Patients require PRBC transfusions for a number of clinical reasons. Although transfusions of PRBCs provide some clinical benefit, they are also associated with increased morbidity and mortality across multiple patient populations, albeit the mechanisms underlying this relationship remain unclear...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28697023/clot-dynamics-and-mortality-the-ma-r-ratio
#4
Stephanie A Savage, Ben L Zarzaur, Timothy H Pohlman, Brian L Brewer, Louis J Magnotti, Martin A Croce, Garrett H Lim, Ali C Martin
INTRODUCTION: The coagulopathy of trauma, illustrated by a short R-time, is common and well understood. The physiology behind this may be early thrombin burst with rapid clot formation. Rapid consumption of fibrinogen, however, may result in weak clot and substrate depletion, resulting in low MA. While these characteristics are interesting, utilizing TEG to identify those at risk for subsequent bleeding diathesis, especially in those who do not demonstrate early signs of physiologic derangement, is challenging...
July 8, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28679447/in-vitro-inhibition-and-reversal-of-plasmodium-falciparum-cytoadherence-to-endothelium-by-monoclonal-antibodies-to-icam-1-and-cd36
#5
Khairul M F Mustaffa, Janet Storm, Megan Whittaker, Tadge Szestak, Alister G Craig
BACKGROUND: Sequestration of parasitized red blood cells from the peripheral circulation during an infection with Plasmodium falciparum is caused by an interaction between the parasite protein PfEMP1 and receptors on the surface of host endothelial cells, known as cytoadherence. Several lines of evidence point to a link between the pathology of severe malaria and cytoadherence, therefore blocking adhesion receptors involved in this process could be a good target to inhibit pRBC sequestration and prevent disease...
July 5, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28651884/-transfusions-in-myelodysplastic-syndromes
#6
C Rose
PRBC transfusion remains the mainstay of treatment of anemia in MDS after failure of erythropoiesis stimulating agents. The most common transfusion trigger in transfusion-dependent MDS patients is 80g/L. This level is based only on expert consensus; a randomized controlled trial comparing restrictive against liberal policy is required to evaluate potential impact of transfusion policy on with QoL and survival. Prophylactic antigen matching for RhCE and K must be used in order to reduce the risk of red blood cell (RBC) alloimmunization...
June 23, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28651116/pd-1-pd-l1-and-ctla-4-in-pregnancy-related-and-in-early-onset-breast-cancer-a-comparative-study
#7
Balázs Ács, Lilla Madaras, Anna-Mária Tőkés, Attila Kristóf Kovács, Erzsébet Kovács, Magdolna Ozsvári-Vidákovich, Ádám Karászi, Ede Birtalan, Magdolna Dank, Attila Marcell Szász, Janina Kulka
PURPOSE: We aimed to compare the immunohistochemical expression of PD-1, PD-L1 and CTLA-4 of pregnancy-related breast cancer (PRBC) and early onset non-PRBC (YWBC), and their prognosis prediction potential was correlated to that of conventional clinicopathological factors. METHODS: Twenty-one PRBC cases were paired with 21 YWBC in this matched case-control study. Immune-checkpoint markers (ICM) were evaluated with immunohistochemistry (IHC) on whole slides using the following antibodies: PD-1 (NAT-105), PD-L1 (28-8) and CTLA-4 (F-8)...
June 23, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28632783/transient-effects-of-transfusion-and-feeding-advances-volumetric-and-caloric-on-necrotizing-enterocolitis-development-a-case-crossover-study
#8
Vi T Le, Mark A Klebanoff, Maria M Talavera, Jonathan L Slaughter
OBJECTIVE: To evaluate the short-term effects of feed fortification, feed volume increase, and PRBC transfusion on the odds of developing NEC. STUDY DESIGN: Case-crossover study of neonatal intensive care infants born at ≤ 32 weeks' gestation who were admitted to 5 central Ohio intensive care units from January 2012-July 2016 and developed NEC Bell Stage ≥2. Each patient served as their own control, with exposure during the 48-hour period just prior to NEC onset (hazard period) being compared to a preceding 48-hour control period, thus eliminating confounding by patient factors fixed between both intervals...
2017: PloS One
https://www.readbyqxmd.com/read/28626375/intravenous-bevacizumab-therapy-in-a-patient-with-hereditary-hemorrhagic-telangiectasia-eng-e137k-alcoholic-cirrhosis-and-portal-hypertension
#9
Luigi F Bertoli, Pauline L Lee, Lauren Lallone, James C Barton
Intravenous bevacizumab decreased mucosal bleeding in some patients with hereditary hemorrhagic telangiectasia (HHT). We treated a 47-year-old male who had HHT, severe epistaxis, and gastrointestinal bleeding, alcoholic cirrhosis, and portal hypertension with intravenous bevacizumab 2.5 mg/kg every 2 weeks. We tabulated these measures weekly during weeks 1-33 (no bevacizumab); 34-57 (bevacizumab); and 58-97 (no bevacizumab): hemoglobin (Hb) levels; platelet counts; units of transfused packed erythrocytes (PRBC units); and quantities of iron infused as iron dextran to support erythropoiesis...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28590355/pre-hospital-administration-of-freeze-dried-plasma-is-it-the-solution-for-trauma-casualties
#10
Shlaifer Amir, Siman-Tov Maya, Radomislensky Irina, Peleg Kobi, Shina Avi, Baruch N Erez, Glassberg Elon, Yitzhak Avraham
BACKGROUND: Hemorrhage, is the leading cause of possible preventable death in the battlefield. There is an increasing evidence for the effectiveness of blood component therapy in general, and plasma infusion in particular but their use is less applicable in the pre-hospital setting due to logistic difficulties. Israeli Defense Force has implemented the use of freeze dried plasma (FDP) at the point of injury (POI), this adoption of FDP use entailed doubts regarding the feasibility and effectiveness of this practice...
June 6, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28589139/red-cell-storage-duration-does-not-affect-outcome-after-massive-blood-transfusion-in-trauma-and-nontrauma-patients-a-retrospective-analysis-of-305-patients
#11
Alexander Bautista, Theodore B Wright, Janice Meany, Sunitha K Kandadai, Benjamin Brown, Kareim Khalafalla, Saeed Hashem, Jason W Smith, Tayyeb M Ayyoubi, Jarrod E Dalton, Anupama Wadhwa, Daniel I Sessler, Detlef Obal
BACKGROUND: Prolonged storage of packed red blood cells (PRBCs) may increase morbidity and mortality, and patients having massive transfusion might be especially susceptible. We therefore tested the hypothesis that prolonged storage increases mortality in patients receiving massive transfusion after trauma or nontrauma surgery. Secondarily, we considered the extent to which storage effects differ for trauma and nontrauma surgery. METHODS: We considered surgical patients given more than 10 units of PRBC within 24 hours and evaluated the relationship between mean PRBC storage duration and in-hospital mortality using multivariable logistic regression...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28575484/comprehensive-analysis-of-liberal-and-restrictive-transfusion-strategies-in-pediatric-intensive-care-unit
#12
Basak Akyildiz, Nazan Ulgen Tekerek, Ozge Pamukcu, Adem Dursun, Musa Karakukcu, Nazmi Narin, Mehmet Yay, Ferhan Elmali
Background: We prospectively compared restrictive and liberal transfusion strategies for critically ill children regarding hemodynamic and laboratory parameters. Methods: A total of 180 children requiring packed red blood cells (PRBCs) were randomized into two groups: the liberal transfusion strategy group (transfusion trigger < 10 g/dL, Group 1) and the restrictive transfusion strategy group (transfusion trigger ≤ 7 g/dL, Group 2). Basal variables including venous/arterial hemoglobin, hematocrit and lactate levels; stroke volume; and cardiac output were recorded at the beginning and end of the transfusion...
May 30, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28562518/iron-overload-in-survivors-of-childhood-cancer
#13
Erin Murphy Trovillion, Lynn Schubert, Andrew C Dietz
BACKGROUND: Patients transfused with packed red blood cells (PRBC), including childhood cancer survivors (CCS), experience complications. We describe iron overload (ferritin>500 ng/mL) prevalence and identify risk factors in CCS. OBSERVATIONS: Of 116 participants, 3 (2.6%) had elevated ferritin. All were teenagers at cancer diagnosis and received >8000 mL PRBC. Total PRBC volume correlated best with elevated ferritin (r=0.74; P<0.0001). PRBC (8000 mL) had the best positive and negative predictive value (75% and 100%, respectively) for iron overload...
May 29, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28550922/ph-modulation-ameliorates-the-red-blood-cell-storage-lesion-in-a-murine-model-of-transfusion
#14
Alex L Chang, Young Kim, Aaron P Seitz, Rebecca M Schuster, Timothy A Pritts
BACKGROUND: Prolonged storage of packed red blood cells (pRBCs) induces a series of harmful biochemical and metabolic changes known as the RBC storage lesion. RBCs are currently stored in an acidic storage solution, but the effect of pH on the RBC storage lesion is unknown. We investigated the effect of modulation of storage pH on the RBC storage lesion and on erythrocyte survival after transfusion. METHODS: Murine pRBCs were stored in Additive Solution-3 (AS3) under standard conditions (pH, 5...
May 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28547532/prehospital-blood-transfusions-in-pediatric-trauma-and-nontrauma-patients-a-single-center-review-of-safety-and-outcomes
#15
Aodhnait S Fahy, Cornelius A Thiels, Stephanie F Polites, Maile Parker, Michael B Ishitani, Christopher R Moir, Kathleen Berns, James R Stubbs, Donald H Jenkins, Scott P Zietlow, Martin D Zielinski
PURPOSE: Prehospital transfusions are a novel yet increasingly accepted intervention in the adult population as part of remote damage control resuscitation, but prehospital transfusions remain controversial in children. Our purpose was to review our pediatric prehospital transfusion experience over 12 years to describe the safety of prehospital transfusion in appropriately triaged trauma and nontrauma patients. METHODS: Children (<18 years) transfused with packed red blood cells (pRBC) or plasma during transport to a single regional academic medical center between 2002 and 2014 were identified...
May 25, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28540073/viscoelastic-testing-inside-and-beyond-the-operating-room
#16
REVIEW
Liang Shen, Sheida Tabaie, Natalia Ivascu
Hemorrhage is a major contributor to morbidity and mortality during the perioperative period. Current methods of diagnosing coagulopathy have various limitations including long laboratory runtimes, lack of information on specific abnormalities of the coagulation cascade, lack of in vivo applicability, and lack of ability to guide the transfusion of blood products. Viscoelastic testing offers a promising solution to many of these problems. The two most-studied systems, thromboelastography (TEG) and rotational thromboelastometry (ROTEM), offer similar graphical and numerical representations of the initiation, formation, and lysis of clot...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28538641/prehospital-plasma-resuscitation-associated-with-improved-neurologic-outcomes-after-traumatic-brain-injury
#17
Matthew C Hernandez, Cornelius A Thiels, Johnathon M Aho, Elizabeth B Habermann, Martin D Zielinski, James A Stubbs, Donald H Jenkins, Scott P Zietlow
INTRODUCTION: Trauma related hypotension and coagulopathy worsen secondary brain injury in patients with traumatic brain injuries (TBI). Early damage control resuscitation with blood products may mitigate hypotension and coagulopathy. Preliminary data suggest resuscitation with plasma in large animals improve neurologic function after TBI; however, data in humans are lacking. METHODS: We retrospectively identified all poly-trauma patients age >15 years with head injuries undergoing prehospital resuscitation with blood products at a single level I trauma center from 01/2002 to 12/2013...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28508765/a-comparison-of-outcomes-of-treatment-with-resection-prosthesis-of-the-hip-in-revision-and-oncological-surgery
#18
Paweł Kamiński, Jakub Szmyd, Jarosław Ambroży, Jerzy Mirosław Jaworski, Bogusław Frańczuk
INTRODUCTION: The introduction of resection prostheses paved the way for the development of limb-sparing surgery in patients with primary or metastatic bone tumours. After some time, the developing possibilities of treatment of extensive bone defects allowed for the use of resection prostheses as an emergency procedure in patients undergoing revision surgery due to hip implant loosening. The aim of this paper is to compare treatment outcomes in patients receiving the Modular Universal Tumour and Revision System (MUTARS) resection prosthesis during arthroplasty performed for different indications: treatment of a tumour metastasis and revision surgery in cases of implant loosening...
April 12, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28488959/temperature-dependent-haemolytic-propensity-of-cpda-1-stored-red-blood-cells-vs-whole-blood-red-cell-fragility-as-donor-signature-on-blood-units
#19
Vassilis L Tzounakas, Alkmini T Anastasiadi, Dimitrios G Karadimas, Redisa A Zeqo, Hara T Georgatzakou, Olga D Pappa, Olga A Papatzitze, Konstantinos E Stamoulis, Issidora S Papassideri, Marianna H Antonelou, Anastasios G Kriebardis
BACKGROUND: To preserve cellular integrity and avoid bacterial growth, storage and transfer of blood and blood products follow strict guidelines in terms of temperature control. We evaluated the impact of ineligible warming of whole blood donations on the quality of blood components. MATERIAL AND METHODS: One-hundred and twenty units of whole blood (WB) from eligible blood donors were collected in CPDA-1 and stored at 4±2 °C. During shipment to the blood processing centre, a gradual warming up to 17 °C was recorded within a period of less than eight hours...
April 10, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28488956/introduction-of-thromboelastometry-guided-administration-of-fresh-frozen-plasma-is-associated-with-decreased-allogeneic-blood-transfusions-and-post-operative-blood-loss-in-cardiopulmonary-bypass-surgery
#20
Junko Ichikawa, Takahito Marubuchi, Keiko Nishiyama, Mitsuharu Kodaka, Klaus Görlinger, Makoto Ozaki, Makiko Komori
BACKGROUND: Cardiac surgery is frequently associated with excessive blood loss requiring multiple blood transfusions which are, in turn, associated with increased morbidity and mortality. We evaluated the effectiveness of rotational thromboelastometry (ROTEM(®))-guided administration of fresh-frozen plasma (FFP) with regards to blood loss, transfusion requirements, and major post-operative complications. MATERIALS AND METHODS: Coagulation management in 68 prospective patients undergoing cardiac surgery with cardiopulmonary bypass was based on a treatment algorithm guided by ROTEM(®) measurements...
March 23, 2017: Blood Transfusion, Trasfusione del Sangue
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