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https://www.readbyqxmd.com/read/28731369/experimental-evaluation-of-tranexamic-acid-loaded-porous-starch-as-a-hemostatic-powder
#1
Chaoyun Xi, Liguo Zhu, Yuan Zhuang, Shufang Wang, Guixiang Sun, Yaqian Liu, Deqing Wang
We evaluated the effectiveness of a novel hemostatic powder called Tranexamic Acid-loaded Porous Starch (TAPS) developed recently on blood clotting activity and hemostasis. The effectiveness of TAPS was evaluated by comparing hemostatic properties with those of Quick-acting Styptic Powder (QSP) and Compound Microporous Polysaccharide Haemostatic powder (CMPHP). The blood clotting activities of human blood were analyzed by thromboela-stogram (TEG) assays in vitro. The hemostatic effectiveness in vivo was evaluated using a rat model with hepatic traumatic hemorrhage...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28639693/thromboelastography-may-predict-risk-of-grade-2-bleeding-in-thrombocytopenic-patients
#2
E N Opheim, T O Apelseth, S J Stanworth, G E Eide, T Hervig
BACKGROUND AND OBJECTIVES: Platelet count is used as a prophylactic platelet transfusion trigger, although evidence suggests that it is a poor predictor of bleeding. Thus, alternative tests are required. The primary objective of this study was to compare thromboelastography (TEG) parameters on days with and without bleeding symptoms. The secondary objectives were to investigate the relationship between TEG parameters and haematological variables, fever, C-reactive protein (CRP) and platelet transfusion...
June 22, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28624047/viscoelastic-monitoring-in-pediatric-trauma-a-survey-of-pediatric-trauma-society-members
#3
Robert T Russell, Ilan I Maizlin, Adam M Vogel
BACKGROUND: Viscoelastic monitoring (VEM), including thromboelastography (TEG) and rotational thromboelastometry (ROTEM) in the setting of goal-directed hemostatic resuscitation has been shown to improve outcomes in adult trauma. The American College of Surgeons (ACS) Committee on Trauma recommends that "thromboelastography should be available at level I and level II trauma centers". The purpose of this study is to determine the current availability and utilization of VEM in pediatric trauma...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28594434/a-facile-method-and-novel-mechanism-using-microneedle-structured-pdms-for-triboelectric-generator-applications
#4
Van-Long Trinh, Chen-Kuei Chung
The triboelectric generator (TEG) is a cost-effective, multi-fabricated, friendly mechanical-energy-harvesting device. The traditional TEG, generally formed by two triboelectric materials in multilayers or a simple pattern, generated triboelectricity as it worked in the cycling contact-separation operation. This paper demonstrates a novel, high-aspect-ratio, microneedle (MN)-structured polydimethylsiloxane (PDMS)-based triboelectric generator (MN-TEG) by means of a low-cost, simple fabrication using CO2 laser ablation on the polymethyl methacrylate substrate and a molding process...
June 8, 2017: Small
https://www.readbyqxmd.com/read/28550916/assessment-of-three-point-of-care-platelet-function-assays-in-adult-trauma-patients
#5
Christopher Robert Connelly, John D Yonge, Sean P McCully, Kyle D Hart, Thomas C Hilliard, Diane E Lape, Justin J Watson, Beth Rick, Ben Houser, Thomas G Deloughery, Martin A Schreiber, Laszlo N Kiraly
BACKGROUND: Antiplatelet (AP) medication use is common among trauma patients and is associated with poor outcomes. Management options for platelet dysfunction in trauma patients are controversial, expensive, and potentially harmful. Although light transmission platelet aggregometry is considered the standard test to assess platelet function, it is cumbersome and not generally available. Currently, there are no widely accepted platelet function point-of-care tests for acute trauma. STUDY DESIGN: Prospective observational study from 2014 to 2015...
May 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28488236/dabigatran-plasma-levels-aptt-and-thromboelastography-in-patients-with-af-implications-for-allowing-early-non-elective-surgical-procedures
#6
Athanasios Pipilis, Stamatis Makrygiannis, Georgios Anagnostou, Sotirios Kaliampakos, Georgios Tsakonas, Nikolaos Sourlas, Panagiotis Mallios, Theodora Kostelidou
According to current recommendations, patients on dabigatran should stop the drug 24-96 h before scheduled surgery. This may seem too long for non-elective cases. The aim of our study was to assess the number of patients on dabigatran who could theoretically undergo surgery 12 h post last drug dosing. We measured dabigatran plasma trough concentration by Hemoclot assay in 75 consecutive patients receiving dabigatran. Coagulation was assessed by aPTT and thromboelastography (TEG). Plasma levels ≤30 ng/ml were considered low...
May 9, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28478790/the-effect-of-endogenous-and-synthetic-estrogens-on-whole-blood-clot-formation-and-erythrocyte-structure
#7
Albe C Swanepoel, Odette Emmerson, Etheresia Pretorius
As erythrocyte and estrogens interact so closely and erythrocytes can indicate the healthiness of an individual, it is essential to investigate the effects of natural estrogens as well as synthetic estrogens on these cells. Whole blood samples were used for thromboelastography (TEG), light microscopy (LM), and scanning electron microscopy (SEM) investigation. Viscoelastic investigation with TEG revealed that estrogens affected the rate of clot formation without any significant effect on the strength or stability of the clot...
May 8, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28453855/newly-characterized-interaction-stabilizes-dna-structure-oligoethylene-glycols-stabilize-g-quadruplexes-ch-%C3%AF-interactions
#8
Hisae Tateishi-Karimata, Tatsuya Ohyama, Takahiro Muraoka, Peter Podbevsek, Adam M Wawro, Shigenori Tanaka, Shu-Ichi Nakano, Kazushi Kinbara, Janez Plavec, Naoki Sugimoto
Oligoethylene glycols are used as crowding agents in experiments that aim to understand the effects of intracellular environments on DNAs. Moreover, DNAs with covalently attached oligoethylene glycols are used as cargo carriers for drug delivery systems. To investigate how oligoethylene glycols interact with DNAs, we incorporated deoxythymidine modified with oligoethylene glycols of different lengths, such as tetraethylene glycol (TEG), into DNAs that form antiparallel G-quadruplex or hairpin structures such that the modified residues were incorporated into loop regions...
April 27, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28446928/thromboelastographic-changes-during-laparoscopic-fundoplication
#9
Indre Zostautiene, Kristina Zvinienė, Darius Trepenaitis, Rolandas Gerbutavičius, Antanas Mickevičius, Rima Gerbutavičienė, Mindaugas Kiudelis
INTRODUCTION: Thromboelastography (TEG) is a technique that measures coagulation processes and surveys the properties of a viscoelastic blood clot, from its formation to lysis. AIM: To determine the possible hypercoagulability state and the effect of antithrombotic prophylaxis on thromboelastogram results and development of venous thrombosis during laparoscopic fundoplication. MATERIAL AND METHODS: The study was performed on 106 patients who were randomized into two groups...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28443142/effects-of-androgen-deprivation-therapy-on-hypercoagulability-in-prostate-cancer-patients-a-prospective-longitudinal-study
#10
Harmanpreet Kaur, D Robert Siemens, Angela Black, Sylvia Robb, Spencer Barr, Charles H Graham, Maha Othman
INTRODUCTION: Androgen-deprivation therapy (ADT) is the mainstay of systemic therapy for advanced prostate cancer (PCa), but has significant adverse effects, including increasing concern for cardiovascular (CV) and thromboembolic (TE) complications. This study carefully investigates any relationship between ADT use and hypercoagulability as a possible mechanism of these adverse effects. METHODS: We performed a prospective, longitudinal study in a cohort of patients with advanced PCa initiating ADT (n=18)...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28414934/blood-clot-parameters-thromboelastography-and-scanning-electron-microscopy-in-research-and-clinical-practice
#11
Etheresia Pretorius, Albe C Swanepoel, Sulette DeVilliers, Janette Bester
BACKGROUND: Clotting parameters are informative of overall haematological healthiness of an individual. Particularly, clotting parameters can be used as a measure of the degree of pathology of the coagulation system. Thromboelastography (TEG) is a well-known technique that is an important point-of-care method, as well as research method. Scanning electron microscopy (SEM) is a novel research method, but with possible clinical application. However, there are no clear standardized guidelines for TEG and SEM result interpretation...
April 11, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28359136/point-of-care-testing-in-burn-patients
#12
Marion Wiegele, Sibylle Kozek-Langenecker, Eva Schaden
Severe burn injury has an impact on the coagulation system, but a unique definition regarding these changes is still missing. The results of conventional coagulation assays (CCAs) measured in daily clinical practice are often interpreted as coagulopathic, which implies a bleeding tendency. However, viscoelastic coagulation assays (VCA) like Rotational Thromboelastometry (ROTEM) and Thromboelastography (TEG) depict a hypercoagulable state. Therefore, hemostatic interventions should not be indicated according to deranged CCA results, but only in case of clinically relevant bleeding plus indicative VCA results...
June 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28356162/blood-transfusion-and-coagulopathy-in-geriatric-trauma-patients
#13
Brett Mador, Bartolomeu Nascimento, Simon Hollands, Sandro Rizoli
BACKGROUND: Trauma resuscitation has undergone a paradigm shift with new emphasis on the early use of blood products and increased proportions of plasma and platelets. However, it is unclear how this strategy is applied or how effective it is in the elderly population. The study aim is to identify differences in transfusion practices and the coagulopathy of trauma in the elderly. METHODS: Data was prospectively collected on all consecutive patients that met trauma activation criteria at a Level I trauma centre...
March 29, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28338314/surface-layer-evolution-on-graphite-during-electrochemical-sodium-tetraglyme-co-intercalation
#14
Julia Maibach, Fabian Jeschull, Daniel Brandell, Kristina Edström, Mario Valvo
One obstacle in sodium ion batteries is the lack of suitable anode materials. As recently shown, the most common anode material of the state of the art lithium ion batteries, graphite, can be used for sodium ion storage as well, if ether-based electrolyte solvents are used. These solvents cointercalate with the sodium ions leading to the highly reversible formation of ternary graphite intercalation compounds (t-GIC). In order for the solvent cointercalation to work efficiently, it is expected that only a very thin surface layer forms during electrochemical cycling...
April 3, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28332659/hydration-controlled-anisotropic-and-giant-permittivity-in-teg-functionalized-eumelanin
#15
Marianna Ambrico, Paolo F Ambrico, Teresa Ligonzo, Antonio Cardone, Maria Grazia Bridelli, Giuseppe Casamassima, Paola Manini, Marco d'Ischia
Although it has long been known that the peculiar electronic-ionic conductor behavior of eumelanin is critically dependent on hydration, the detailed mechanisms by which water-polymer interactions control and affect the conduction properties have remained largely obscure. In this paper, we report a remarkable anisotropy and giant polarization effect in a synthetic eumelanin (TEGMe) chemically functionalized with hydrophilic TEG residues. FT-IR analyses of water sorption isotherms and AC measurements were consistent with a microporous structure binding or hosting mainly isolated water molecules...
March 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28298662/the-teg-%C3%A2-6s-on-shaky-ground-a-novel-assessment-of-the-teg-%C3%A2-6s-performance-under-a-challenging-condition
#16
Martin Gill
Thromboelastography(®) (TEG(®)) is used to guide clinical decision-making across many medical and surgical subspecialties. Advances in this field have resulted in analyzers becoming increasingly user friendly, and have led to a reduction in the possibility of user error. The new TEG(®)6s does not come with the warnings of vibration and movement avoidance of its predecessor. It was decided to test the capability of this device while being subject to motion. TEG(®)6s machine 1 was placed in an environment free from motion...
March 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/28271672/evaluation-of-the-lyophilized-platelets-function-by-thromboelastography-in-an-in-vitro-platelet-transfusion-model
#17
Xiaojun Deng, Xinguang Wu, Gaoshun Ge, Lihong Huang, Ning Li, Dan Wang
BACKGROUND: At present, liquid conserved platelets (PLTs) can only be stored at 22°C for up to 5 days. Waste of outdated PLTs and short supply of fresh PLTs were both seen in blood banks. Lyophilized PLTs were considered as one of the candidate replacements for liquid conserved PLTs. It is important to evaluate the function before it can be used in clinical trial. METHODS: In this study, an in vitro platelet transfusion model was established to evaluate the function of rehydrated lyophilized platelets (RLPs) by thromboelastography (TEG)...
March 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28271065/the-reliability-of-the-tracheoesophageal-groove-and-the-ligament-of-berry-as-landmarks-for-identifying-the-recurrent-laryngeal-nerve-a-cadaveric-study-and-meta-analysis
#18
REVIEW
Brandon Michael Henry, Beatrice Sanna, Matthew J Graves, Silvia Sanna, Jens Vikse, Iwona M Tomaszewska, R Shane Tubbs, Krzysztof A Tomaszewski
Purpose. The aim of this meta-analysis was to provide a comprehensive evidence-based assessment, supplemented by cadaveric dissections, of the value of using the Ligament of Berry and Tracheoesophageal Groove as anatomical landmarks for identifying the Recurrent Laryngeal Nerve. Methods. Seven major databases were searched to identify studies for inclusion. Eligibility was judged by two reviewers. Suitable studies were identified and extracted. MetaXL was used for analysis. All pooled prevalence rates were calculated using a random effects model...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28190562/a-combined-approach-to-early-detect-in-vitro-drug-induced-hemostatic-changes-in-preclinical-safety
#19
Myriam Defontis, Serge Côté, David Ledieu
Early detection of drug-induced alterations of hemostasis is challenging. Drugs can affect different components of the Virchow's triad and measurement of plasmatic coagulation times lacks sensitivity. New techniques for a more global assessment of the hemostasis are now available: the impedance platelet aggregometry, the thromboelastography and the thrombin generation measurement. The aim of this study was to evaluate three techniques (i.e.: Multiplate(®), TEG(®) and CAT) for the in vitro detection of the effect of a drug known to induce hemostatic alterations in a preclinical safety environment...
February 9, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28153582/changing-trends-in-antimicrobial-susceptibility-pattern-of-bacterial-isolates-in-a-burn-unit
#20
Narendra Pal Singh, Mayuri Rani, Kavita Gupta, Tanu Sagar, Iqbal Rajinder Kaur
INTRODUCTION: Emerging antimicrobial resistance in nosocomial bacterial isolates, limits the available treatment options for burn wound infections, among them multi-drug resistant Gram negative bacteria and methicillin-resistant Staphylococcus aureus (MRSA) are major contributors to the increase in morbidity and mortality rates. MATERIAL AND METHODS: A retrospective cross-sectional study was done in the Department of Microbiology, University College of Medical Sciences & Guru Teg Bahadur Hospital, Delhi...
August 2017: Burns: Journal of the International Society for Burn Injuries
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