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https://www.readbyqxmd.com/read/28628602/procoagulant-activity-of-human-mesenchymal-stem-cells
#1
Barbara A Christy, Maryanne C Herzig, Robbie K Montgomery, Christopher Delavan, James A Bynum, Kristin M Reddoch, Andrew P Cap
BACKGROUND: Allogeneic mesenchymal stem cells (MSCs) show great potential for the treatment of military and civilian trauma based on their reduced immunogenicity and ability to modulate inflammation and immune function in the recipient. Although generally considered to be safe, MSCs express tissue factor (TF), a potent activator of coagulation. In the current study, we evaluated multiple MSC populations for tissue factor expression and procoagulant activity to characterize safety considerations for systemic use of MSCs in trauma patients who may have altered coagulation homeostasis...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28625248/-core-knowledge-and-skill-based-approach-to-subspecialty-construction-in-critical-intensive-care-medicine-with-distinct-chinese-peculiarity
#2
Lijun Wang, Fang Tian
With the rapid development of critical care medicine (CCM) in China, there are increases in the number of intensive care units (ICUs), the scale of one center ICU and the team. Subspecialty construction of CCM is of great concerns for personnel training as well as discipline development, and is currently one of the urgent problems that need to be resolved. Experience of CCM subspecialty construction from Europe and the United States is lacking and it is necessary to propose some opinions on innovation to construct CCM subspecialties with Chinese characteristics...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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/28617415/oral-d-galactose-supplementation-in-pgm1-cdg
#4
Sunnie Yan-Wai Wong, Therese Gadomski, Monique van Scherpenzeel, Tomas Honzik, Hana Hansikova, Katja S Brocke Holmefjord, Marit Mork, Francis Bowling, Jolanta Sykut-Cegielska, Dieter Koch, Jozef Hertecant, Graeme Preston, Jaak Jaeken, Nicole Peeters, Stefanie Perez, David Do Nguyen, Kea Crivelly, Tim Emmerzaal, K Michael Gibson, Kimiyo Raymond, Nurulamin Abu Bakar, Francois Foulquier, Gernot Poschet, Amanda M Ackermann, Miao He, Dirk J Lefeber, Christian Thiel, Tamas Kozicz, Eva Morava
PurposePhosphoglucomutase-1 deficiency is a subtype of congenital disorders of glycosylation (PGM1-CDG). Previous casereports in PGM1-CDG patients receiving oral D-galactose (D-gal) showed clinical improvement. So far no systematic in vitro and clinical studies have assessed safety and benefits of D-gal supplementation. In a prospective pilot study, we evaluated the effects of oral D-gal in nine patients.MethodsD-gal supplementation was increased to 1.5 g/kg/day (maximum 50 g/day) in three increments over 18 weeks...
June 15, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28616347/intraoperative-care-for-aortic-surgery-using-circulatory-arrest
#5
REVIEW
Félix Ezequiel Fernández Suárez, David Fernández Del Valle, Adrián González Alvarez, Blanca Pérez-Lozano
The total circulatory arrest (CA) is necessary to achieve optimal surgical conditions in certain aortic pathologies, especially in those affecting the ascending aorta and aortic arch. During this procedure it is necessary to protect all the organs of ischemia, especially those of the central nervous system and for this purpose several strategies have been developed. The first and most important protective method is systemic hypothermia. The degree of hypothermia and the route of application have been evolving and currently tend to use moderate hypothermia (MH) (20...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28608891/salt-induced-cluster-formation-of-gold-nanoparticles-followed-by-stopped-flow-saxs-dls-and-extinction-spectroscopy
#6
Nico Carl, Sylvain Prévost, Joseph P S Fitzgerald, Matthias Karg
In this work we investigate the salt-induced cluster formation of monodisperse, spherical gold nanoparticles possessing negative surface charge. Time dependent dynamic light scattering was used to determine the critical coagulation concentration and to study the kinetics of cluster growth. Cryo-TEM as well as small angle X-ray scattering allowed to obtain insights into the cluster morphology at various salt concentrations. The time dependent cluster growth was monitored by stopped-flow small angle X-ray scattering experiments and UV-Visible extinction measurements simultaneously...
June 13, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28599392/the-laboratory-control-of-anticoagulant-thromboprophylaxis-during-the-early-postpartum-period-after-cesarean-delivery
#7
Ekaterina M Koltsova, Anna N Balandina, Konstantin I Grischuk, Margarita A Shpilyuk, Elena A Seregina, Natalia M Dashkevich, Alexander V Poletaev, Alexey V Pyregov, Gennady T Sukhih, Ilya I Serebriyskiy, Fazly I Ataullakhanov
INTRODUCTION: The incidence of venous thromboembolism (VTE) after cesarean section is up to 0.6%, and the widespread use of cesarean section draws attention to this group. The dosage and duration of low-molecular-weight heparin (LMWH) prophylaxis after delivery is estimated by anamnestic risk-scales; however, the predictive potency for an individual patient's risk can be low. Laboratory hemostasis assays are expected to solve this problem. The aim of this study was to estimate the potency of tests to reflect the coagulation state of patients receiving LMWH in the early postpartum period...
May 25, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28597369/first-report-of-real-time-monitoring-of-coagulation-function-potential-and-igg-subtype-of-anti-fviii-autoantibodies-in-a-child-with-acquired-hemophilia-a-associated-with-streptococcal-infection-and-amoxicillin
#8
Masahiro Takeyama, Keiji Nogami, Takahiro Kajimoto, Kenichi Ogiwara, Tomoko Matsumoto, Midori Shima
We describe an 8-year-old boy with acquired hemophilia A (AHA) associated with streptococcal infection and amoxicillin. Laboratory data revealed low factor VIII activity (FVIII:C, 1.5 IU/dl), and FVIII inhibitor (15.9 BU/ml). Comprehensive coagulation function assays, including rotation thromboelastometry (ROTEM(®)), revealed a markedly prolonged clotting time. Thrombin and plasmin generation (TG/PG) appeared to be moderately impaired. The inhibitor epitope of his anti-FVIII autoantibody recognized light and heavy chains...
June 8, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28594426/new-developments-in-anticoagulants-past-present-and-future
#9
Jeffrey I Weitz, Job Harenberg
Thrombosis is a leading cause of death and disability worldwide, and anticoagulants are the mainstay of its prevention and treatment. Starting with unfractionated heparin (UFH) and vitamin K antagonists (VKAs) such as warfarin, the choices of anticoagulants have exploded in the past 20 years. With over 90 % subcutaneous bioavailability, no need for coagulation monitoring and dose adjustment, and a lower risk of heparin-induced thrombocytopenia, low-molecular-weight heparin and fondaparinux have replaced UFH for prevention and initial treatment of venous thromboembolism and for secondary prevention in cancer patients...
June 8, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28588677/comparative-study-of-conventional-us-contrast-enhanced-us-and-enhanced-mr-for-the-follow-up-of-prostatic-radiofrequency-ablation
#10
Chao Feng, Bin Hu, Bing Hu, Lei Chen, Jia Li, Jin Huang
The aim of the present study was to evaluate and compare the effectiveness of different imaging methods during follow-up of prostatic radiofrequency ablation. Prostatic radiofrequency ablation (RFA) was performed in 20 healthy beagle dogs. Various imaging examinations were used to monitor the results of RFA, including conventional ultrasound (US), contrast enhanced ultrasound (CEUS) and enhanced magnetic resonance (MR). Imaging exams were performed at five phases: Immediately following RFA, one week later, one month later, three months later and six months later...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28584789/anticoagulation-therapy-during-extracorporeal-membrane-oxygenator-support-in-pediatric-patients
#11
REVIEW
Hwa Jin Cho, Do Wan Kim, Gwan Sic Kim, In Seok Jeong
Extracorporeal membrane oxygenation (ECMO) is a salvage therapy for critically ill patients. Although ECMO is becoming more common, hemorrhagic and thromboembolic complications remain the major causes of death in patients undergoing ECMO treatments. These complications commence upon blood contact with artificial surfaces of the circuit, blood pump, and oxygenator system. Therefore, anticoagulation therapy is required in most cases to prevent these problems. Anticoagulation is more complicated in pediatric patients than in adults, and the foreign surface of ECMO only increases the complexity of systemic anticoagulation...
May 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/28583531/does-activated-clotting-time-help-to-predict-innate-coagulopathy-in-end-stage-liver-disease-patients
#12
H-W Jeong, H-M Kwon, K-W Jung, Y-J Moon, I-G Jun, J-G Song, G-S Hwang
BACKGROUND: Measuring activated clotting time (ACT) is widely performed to monitor heparin therapy. Regardless of anticoagulant use, ACT is affected by coagulopathies such as coagulation factor deficiency and thrombocytopenia. However, its use in end-stage liver disease (ESLD) with complex coagulopathy is not well characterized. We evaluated whether ACT could be used to detect innate coagulopathy in ESLD patients. METHODS: We retrospectively assessed Hemochron (International Technidyne, Edison, NJ, USA) ACT (FTCA 510, normal range 105-167 seconds) and INTEM clotting time (CT) of rotational thromboelastometry (ROTEM; ROTEM delta, Pentapharm GmbH, Munich, Germany) (100-240 seconds) in 366 liver transplantation (LT) recipients, simultaneously measured before anesthetic induction for LT...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28579115/bleeding-and-thrombosis-associated-with-ventricular-assist-device-therapy
#13
Palak Shah, Udaya S Tantry, Kevin P Bliden, Paul A Gurbel
Over the past decade, continuous-flow rotary pumps have dramatically improved survival for patients with advanced systolic heart failure. Bleeding and thrombosis, however, continue to be the Achilles heel of left ventricular assist device (LVAD) therapy. There is a dynamic and complex interaction between the patient and pump. The net effect of a variety of hematologic derangements, such as hemolysis, high-molecular-weight von Willebrand degradation, platelet activation and diminished pulsatility, is poorly understood...
May 11, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28574019/k-time-maximum-amplitude-of-thromboelastogram-predict-post-central-venous-cannulation-bleeding-in-patients-with-cirrhosis-a-pilot-study
#14
Chandra K Pandey, Vandana Saluja, Kumar Gaurav, Manish Tandon, Vijay K Pandey, Ajeet S Bhadoria
BACKGROUND & OBJECTIVES: Coagulation and haemostasis are dynamic processes. The haemostatic changes in liver disease affect all aspects of coagulation. The prothrombin time (PT)/ international normalized ratio (INR) was developed to monitor oral anticoagulant therapy and the activated partial thromboplastin time to investigate inheritable single factor deficiencies. Viscoelastic tests such as thromboelastogram (TEG) give information about dynamics of clot formation (coagulation factor and anticoagulant activity), clot strength (platelets and fibrinogen) and clot stability (finbrinolysis and factor XIII)...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28567119/direct-oral-anticoagulants-and-digestive-bleeding-therapeutic-management-and-preventive-measures
#15
REVIEW
David Deutsch, Christian Boustière, Emile Ferrari, Pierre Albaladejo, Pierre-Emmanuel Morange, Robert Benamouzig
The use of direct oral anticoagulants (DOACs) was an important step forward in the management of atrial fibrillation and venous thromboembolism (VTE). The DOACs, anti-IIa for dabigatran and anti-Xa for rivaroxaban, apixaban and edoxaban, all have a rapid onset of action and a short half life. There is no need for routine hemostasis testing for treatment monitoring of a DOAC. Compared with vitamin K antagonists (VKAs), DOACs may increase the risk of gastrointestinal bleeding (relative risk 1.25). Withholding the DOAC treatment, evaluating the time of the last intake and estimating the patient's renal function are the first steps in the management of gastrointestinal bleeding...
June 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28552490/monitoring-of-anticoagulant-therapy-in-cancer-patients-with-thrombosis-and-the-usefulness-of-blood-activation-markers
#16
REVIEW
Jean Amiral, Jerard Seghatchian
Thrombotic diseases caused by cancer progression have been reported as one of the major causes of cancer associated morbidity and mortality along with cancer invasiveness and infectious complications. Moreover, anticoagulant therapy with heparin and heparin-like drugs, or vitamin K antagonists, or the Direct Oral Anticoagulants, is seeing an extended application in cancer patients and offers prolonged life expectancy to oncology patients for whom blood activation and thrombotic events have a variable incidence, depending on cancer type...
May 19, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28549003/noninvasive-thermometry-in-high-intensity-focused-ultrasound-ablation
#17
Yufeng Zhou
High-intensity focused ultrasound (HIFU) is emerging as an effective and promising treatment modality for the formation of coagulative necrosis inside the cancer/tumor noninvasively. To guarantee the efficacy and efficiency of HIFU ablation, the temperature field and consequent thermal dose should be monitored accurately in a high temporal and spatial resolution in real time. However, because of the significant variations of the tissue properties and deep penetration of HIFU beam, especially in the abdominal application, noninvasive thermometry is a very challenging topic, which may hamper the wide acceptance of HIFU by physicians worldwide...
May 25, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28540846/role-of-thromboelastography-in-the-management-of-snake-bite-a-case-report-from-india
#18
Ipsita Nag, Suvro Sankha Datta, Dibyendu De, Partha Pal, Shantanu K Das
In the absence of a specific laboratory test of envenomation, there is a need for an alternative mechanism for the early recognition of envenomation following hematotoxic snake-bite in tropical countries. Abnormalities of clotting are commonly associated with hematotoxic snake bite either due to systemic envenomation or due to the release of an inappropriate tourniquet applied as 'first-aid' often by the rural people before presentation to the hospital. Thromboelastography (TEG) has been used to monitor the coagulation abnormalities in various clinical scenarios...
April 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28537561/prediction-of-acute-pancreatitis-in-the-earliest-stages-role-of-biochemical-parameters-and-histopathological-changes
#19
Jacek Baj, Elżbieta Radzikowska, Marcin Maciejewski, Andrzej Dąbrowski, Kamil Torres
For many years, there has been a search for a set of biochemical parameters that could facilitate the assessment of severity, prognosis, and administration of early and appropriate treatment in acute pancreatitis. Administration of treatment within the first 48 hours since admission is associated with many problems of distinguishing patients with a mild form of acute pancreatitis (AP) from those with a severe form of acute pancreatitis. STUDY AIM: To assess the relationship between the extent of change in the concentration of 10 selected biochemical indicators: amylase, lipase, total bilirubin, creatinine, uric acid, aspartate transaminase, alanine transaminase, glucose, magnesium, and iron and histopathological lesions in the pancreas within 2 and 6 hours since induction of AP...
April 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#20
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
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