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https://www.readbyqxmd.com/read/27923784/low-molecular-weight-heparin-does-not-prevent-vte-after-knee-arthroscopy-studies-show
#1
Susan Mayor
No abstract text is available yet for this article.
December 5, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27923477/hydrophilic-interaction-chromatography-multiple-reaction-monitoring-mass-spectrometry-method-for-basic-building-block-analysis-of-low-molecular-weight-heparins-prepared-through-nitrous-acid-depolymerization
#2
Xiaojun Sun, Zhimou Guo, Mengqi Yu, Chao Lin, Anran Sheng, Zhiyu Wang, Robert J Linhardt, Lianli Chi
Low molecular weight heparins (LMWHs) are important anticoagulant drugs that are prepared through depolymerization of unfractionated heparin. Based on the types of processing reactions and the structures of the products, LMWHs can be divided into different classifications. Enoxaparin is prepared by benzyl esterification and alkaline depolymerization, while dalteparin and nadroparin are prepared through nitrous acid depolymerization followed by borohydride reduction. Compositional analysis of their basic building blocks is an effective way to provide structural information on heparin and LMWHs...
November 30, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27920020/repeated-failed-non-invasive-prenatal-testing-in-a-woman-with-immune-thrombocytopenia-and-antiphospholipid-syndrome-lessons-learnt
#3
C Y Y Hui, W C Tan, E L Tan, L K Tan
We present a case of a 37-year-old Chinese woman (gravida 4 para 0) with a history of immune thrombocytopenia and type IIb antiphospholipid syndrome. She was started on 100 mg of aspirin, 20 mg of prednisolone and 20 mg of subcutaneous low-molecular-weight heparin daily for her fourth pregnancy. She opted for non-invasive prenatal testing for aneuploidy screening but had failed results three times consecutively from insufficient fetal cfDNA initially or high variance in cfDNA counts on redraws. She declined invasive karyotyping...
December 5, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27913481/anti-xa-monitoring-of-low-molecular-weight-heparin-in-adult-patients-with-cancer
#4
Lisa Baumann Kreuziger, Michael Streiff
A 68-year-old man developed a right femoral vein deep vein thrombosis and bilateral pulmonary embolism while receiving chemotherapy for stage IV prostate cancer. His creatinine at diagnosis is 1.4 mg/dL, with an estimated clearance of 63 mL/min. In patients with cancer, should low-molecular-weight heparin treatment be dosed according to weight, or adjusted using anti-Xa levels?
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913480/thrombosis-in-the-setting-of-cancer
#5
Michael B Streiff
Venous thromboembolism (VTE) is a common cause of adverse outcomes in patients with cancer. The risk of VTE varies with cancer type, stage and grade, cancer therapy, and supportive care, as well as patient characteristics including age, ethnicity, and inherited and acquired comorbid conditions. VTE prophylaxis should be provided to all hospitalized cancer patients and high-risk outpatients. Low-molecular-weight heparin (LMWH) remains the first-line therapy for VTE in patients with active cancer. Anticoagulation should be continued as long as there is evidence of active disease or patients are receiving cancer treatment...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27909693/unfractionated-and-low-molecular-weight-heparin-and-the-phosphodiesterase-inhibitors-ibmx-and-cilostazol-block-ex-vivo-equid-herpesvirus-type-1-induced-platelet-activation
#6
Tracy Stokol, Priscila B D Serpa, Muhammad N Zahid, Marjory B Brooks
Equid herpes virus type-1 (EHV-1) is a major pathogen of horses, causing abortion storms and outbreaks of herpes virus myeloencephalopathy. These clinical syndromes are partly attributed to ischemic injury from thrombosis in placental and spinal vessels. The mechanism of thrombosis in affected horses is unknown. We have previously shown that EHV-1 activates platelets through virus-associated tissue factor-initiated thrombin generation. Activated platelets participate in thrombus formation by providing a surface to localize coagulation factor complexes that amplify and propagate thrombin generation...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27906917/efficacy-and-safety-of-tc-325-hemospraytm-for-non-variceal-upper-gastrointestinal-bleeding-at-middlemore-hospital-the-early-new-zealand-experience
#7
Hannah Giles, Dinesh Lal, Stephen Gerred, Paul Casey, Alasdair Patrick, Derek Luo, Ravinder Ogra
AIMS: A case series to review early experiences with HemosprayTM for a variety of non-variceal upper gastrointestinal bleeding (UGIB) at Middlemore Hospital. METHODS: HemosprayTM was administered therapeutically as first line or rescue at the discretion of the endoscopist. All cases of UGIB requiring HemosprayTM at Middlemore Hospital were identified to the investigator who undertook analysis of electronic and hard copy notes. RESULTS: Between October 2013 and July 2016, 36 patients were treated endoscopically with HemosprayTM...
December 2, 2016: New Zealand Medical Journal
https://www.readbyqxmd.com/read/27906870/effectiveness-of-low-molecular-weight-heparin-versus-unfractionated-heparin-to-prevent-pulmonary-embolism-following-major-trauma-a-propensity-matched-analysis
#8
James P Byrne, William Geerts, Stephanie A Mason, David Gomez, Christopher Hoeft, Ryan Murphy, Melanie Neal, Avery B Nathens
BACKGROUND: Pulmonary embolism (PE) is a leading cause of delayed mortality in patients with severe injury. While low molecular weight heparin (LMWH) is often favored over unfractionated heparin (UH) for thromboprophylaxis, evidence is lacking to demonstrate an effect on the occurrence of PE. This study compared the effectiveness of LMWH versus UH to prevent PE in patients following major trauma. METHODS: Data for adults with severe injury who received thromboprophylaxis with LMWH or UH were derived from the American College of Surgeons Trauma Quality Improvement Program (2012-2015)...
November 30, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27906452/primary-prophylaxis-for-venous-thromboembolism-in-ambulatory-cancer-patients-receiving-chemotherapy
#9
REVIEW
Marcello Di Nisio, Ettore Porreca, Matteo Candeloro, Michele De Tursi, Ilaria Russi, Anne Ws Rutjes
BACKGROUND: Venous thromboembolism (VTE) often complicates the clinical course of cancer. The risk is further increased by chemotherapy, but the trade-off between safety and efficacy of primary thromboprophylaxis in cancer patients treated with chemotherapy is uncertain. This is the second update of a review first published in February 2012. OBJECTIVES: To assess the efficacy and safety of primary thromboprophylaxis for VTE in ambulatory cancer patients receiving chemotherapy compared with placebo or no thromboprophylaxis...
December 1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27906197/treatment-and-follow-up-of-venous-thrombosis-in-the-neonatal-intensive-care-unit-a-retrospective-study
#10
J C Bohnhoff, S A DiSilvio, R K Aneja, J R Shenk, Y A Domnina, B S Brozanski, M Good
OBJECTIVE: The critically ill, premature patients of neonatal intensive care units are susceptible to venous thrombosis, an adverse event associated with short- and long-term morbidity. Venous thrombosis is frequently treated with low-molecular-weight heparins (LMWHs) such as enoxaparin, but optimal dosing of LMWH must balance the morbidity of venous thrombosis with the potential adverse affects of anticoagulation. The optimal dosing of enoxaparin for premature infants is unclear. The objective of this study was to describe enoxaparin therapy and follow-up in critically ill neonates diagnosed with venous thrombosis...
December 1, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27904903/prediction-of-severe-bleeding-after-coronary-surgery-the-will-bleed-risk-score
#11
Fausto Biancari, Debora Brascia, Francesco Onorati, Daniel Reichart, Andrea Perrotti, Vito G Ruggieri, Giuseppe Santarpino, Daniele Maselli, Giovanni Mariscalco, Riccardo Gherli, Antonino S Rubino, Marisa De Feo, Giuseppe Gatti, Francesco Santini, Magnus Dalén, Matteo Saccocci, Eeva-Maija Kinnunen, Juhani K E Airaksinen, Paola D'Errigo, Stefano Rosato, Francesco Nicolini
Severe perioperative bleeding after coronary artery bypass grafting (CABG) is associated with poor outcome. An additive score for prediction of severe bleeding was derived (n=2494) and validated (n=1250) in patients from the E-CABG registry. Severe bleeding was defined as E-CABG bleeding grades 2-3 (transfusion of >4 units of red blood cells or reoperation for bleeding). The overall incidence of severe bleeding was 6.4 %. Preoperative anaemia (3 points), female gender (2 points), eGFR <45 ml/min/1.73 m(2) (3 points), potent antiplatelet drugs discontinued less than five days (2 points), critical preoperative state (5 points), acute coronary syndrome (2 points), use of low-molecular-weight heparin/fondaparinux/unfractionated heparin (1 point) were independent predictors of severe bleeding...
December 1, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27903032/-interventional-left-atrial-appendage-closure-in-a-patient-with-gave-syndrome
#12
Christian Fastner, Sebastian Belle, Ibrahim Akin
History and findings | A 56-year-old female with a gastric antral vascular ectasia (GAVE) suffered from recurrent episodes of upper gastrointestinal bleeding. Because of a history of a permanent atrial fibrillation (CHA2DS2-VASc score 3 points) an oral anticoagulation therapy with phenprocoumon was carried out which even worsened the bleeding frequency and intensity. A change of medication to low-molecular weight heparin did not lead to success. The frequent periods in hospital limited the patient's quality of life...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27901494/efficacy-of-intermittent-pneumatic-compression-for-venous-thromboembolism-prophylaxis-in-patients-undergoing-gynecologic-surgery-a-systematic-review-and-meta-analysis
#13
Jian-Ping Feng, Yu-Ting Xiong, Zi-Qi Fan, Li-Jie Yan, Jing-Yun Wang, Ze-Juan Gu
We sought to comprehensively assess the efficacy of Intermittent Pneumatic Compression (IPC) in patients undergoing gynecologic surgery. A computerized literature search was conducted in Pubmed, Embase and Cochrane Library databases. Seven randomized controlled trials involving 1001 participants were included. Compared with control, IPC significantly lowered the deep vein thrombosis (DVT) risk [risk ratio (RR) = 0.33, 95% confidence interval (CI): 0.16 - 0.66]. The incidence of DVT in IPC and drugs group was similar (4...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27899521/venous-thrombotic-events-after-liver-transplantation
#14
Annabel Blasi, Virginia Hernandez, Javier Fernandez, Jordi Colmenero, Joan Beltran, Juan Carlos Garcia-Valdecasas, Joan Carles Reverter
Thromboprophylaxis is not well defined after liver transplantation (LT). The aim of this study was to evaluate the incidence of splanchnic vein thrombosis (SVT) and nonsplanchnic vein thrombosis (NSVT) after LT. Liver transplantations performed between 2009 and 2013 in our institution were reviewed. Demographic, intraoperative, and postoperative data were recorded. Low-molecular-weight heparin was only administered postoperatively if intraoperative thrombectomy was performed or in patients preoperatively anticoagulated...
November 28, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27898513/inhibition-of-plasmin-generation-in-plasma-by-heparin-low-molecular-weight-heparin-and-a-covalent-antithrombin-heparin-complex
#15
Gabriela M T Chang, Helen M Atkinson, Leslie R Berry, Anthony K C Chan
The clinical limitations of unfractionated heparin (UFH) and low molecular weight heparin (LMWH) led to the development of an antithrombin-heparin covalent complex (ATH), which displays superior anticoagulant abilities compared with UFH. A recent study investigating its interaction with fibrinolysis showed that ATH inhibited free and fibrin bound plasmin and decreased plasmin generation on fibrin clots. These studies were conducted using purified components and did not elucidate the interaction of ATH with plasmin in the presence of its natural inhibitors α2-antiplasmin (α2-AP) and α2-macroglobulin (α2-M)...
November 24, 2016: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/27895068/impact-of-a-dedicated-cancer-associated-thrombosis-service-on-clinical-outcomes-a-mixed-methods-evaluation-of-a-clinical-improvement-exercise
#16
Simon Noble, Nikki Pease, Jessica Sui, James Davies, Sarah Lewis, Usman Malik, Raza Alikhan, Hayley Prout, Annmarie Nelson
OBJECTIVES: Cancer-associated thrombosis (CAT) complex condition, which may present to any healthcare professional and at any point during the cancer journey. As such, patients may be managed by a number of specialties, resulting in inconsistent practice and suboptimal care. We describe the development of a dedicated CAT service and its evaluation. SETTING: Specialist cancer centre, district general hospital and primary care. PARTICIPANTS: Patients with CAT and their referring clinicians...
November 28, 2016: BMJ Open
https://www.readbyqxmd.com/read/27894736/in-hospital-mortality-with-deep-venous-thrombosis
#17
Paul D Stein, Fadi Matta, Mary J Hughes
BACKGROUND: Little is known about the in-hospital mortality of deep venous thrombosis in recent years. This investigation was undertaken to determine trends in in-hospital mortality in patients with deep venous thrombosis and mortality according to age. METHODS: Administrative data was analyzed from the National (Nationwide) Inpatient Sample (NIS), 2003-2012. We determined in-hospital all-cause mortality according to year and to age among patients with a primary (first-listed) diagnosis of deep venous thrombosis...
November 25, 2016: American Journal of Medicine
https://www.readbyqxmd.com/read/27893491/role-of-low-molecular-weight-heparins-in-prevention-of-thromboembolic-complication-after-transarterial-chemoembolization-in-hepatocellular-carcinoma
#18
Osama Negm, Sabry Abou Saif, Mohamed El Gharib, Mohamed Yousef, Sherief Abd-Elsalam
BACKGROUND AND AIM: Portal vein thrombosis (PVT) is a common complication after transarterial chemoembolization (TACE) in hepatocellular carcinoma (HCC). This is the first clinical study to evaluate the role of low-molecular-weight heparins (LMWHs) with TACE in HCC for the prevention of thromboembolism complications (PVT). PATIENTS AND METHODS: This study was carried out on 40 patients with HCC requiring TACE who presented to the Tropical Medicine Department, Tanta University and Interventional Radiology Department of Ain-Shams University Hospitals starting from April 2015...
November 23, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27892652/aliphatic-polyethers-with-sulfate-carboxylate-and-hydroxyl-side-groups-do-they-show-anticoagulant-properties
#19
Jagadeesh Malineni, Smriti Singh, Sabine Tillmann, Helmut Keul, Martin Möller
There is increasing interest in the synthesis of low molecular weight heparin and heparan sulfate mimetic polymers because of their various potential biomedical applications. The functional activity of heparin and heparan sulfate is believed to arise from the presence of a number of functional groups, such as hydroxyl, carboxylate and sulfate groups. The design and synthesis of novel heparin-mimetic polymers with a particular functionality poses a formidable challenge and requires carefully control of the selective conversion of functional groups on the polymer chain...
November 28, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/27889133/-venous-thromboembolism-prevention-in-pregnancy-and-the-postpartum-period-in-primary-and-specialized-care
#20
J L Gallo-Vallejo, M Naveiro-Fuentes, A Puertas-Prieto, F J Gallo-Vallejo
After noting that there are a number of risk factors for venous thromboembolism disease during pregnancy, it emphasizes primary prevention and treatment of this serious condition during pregnancy and the postpartum period are essential to reduce maternal morbidity and mortality. Low molecular-weight heparins are under the anticoagulant of choice in pregnancy. Your prescription may make both the primary care physician, as the hematologist and obstetrician. As for prescribing terms, an application protocol in both primary and specialized, multidisciplinary care, based on the existing literature on the subject is presented, which indicated that the hypercoagulable disorders associated with some of the risk factors, forced to do thromboprophylaxis with low molecular-weight heparins throughout pregnancy and the postpartum period presented...
November 23, 2016: Semergen
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