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https://www.readbyqxmd.com/read/28474237/tinzaparin-thromboprophylaxis-prescribing-practice-after-caesarean-delivery-2009-2014
#1
P J Maguire, M McGuire, K A Power, M McNicholl, S R Sheehan, M J Turner
BACKGROUND: National guidelines have been developed to ensure correct dosing of tinzaparin for women delivered by caesarean delivery (CD) to reduce the risk of venous thromboembolism. AIMS: The aim of this study is to examine the impact of implementation of national guidelines on thromboprophylaxis prescribing practice for women undergoing CD in a university maternity hospital. METHODS: Details of tinzaparin usage were obtained from the Hospital pharmacy for the years 2009-2014...
May 4, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28467373/the-impact-of-the-low-molecular-weight-heparin-tinzaparin-on-the-sensitization-of-cisplatin-resistant-ovarian-cancers-preclinical-in-vivo-evaluation-in-xenograft-tumor-models
#2
Thomas Mueller, Daniel Bastian Pfankuchen, Kathleen Wantoch von Rekowski, Martin Schlesinger, Franziska Reipsch, Gerd Bendas
Resistance formation of tumors against chemotherapeutics is the major obstacle in clinical cancer therapy. Although low molecular weight heparin (LMWH) is an important component in oncology referring to guideline-based antithrombotic prophylaxis of tumor patients, a potential interference of LMWH with chemoresistance is unknown. We have recently shown that LMWH reverses the cisplatin resistance of A2780cis human ovarian cancer cells in vitro. Here we address the question whether this LMWH effect is also valid under in vivo conditions...
May 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28288527/tinzaparin-for-long-term-treatment-of-venous-thromboembolism-in-patients-with-cancer
#3
M José Martínez-Zapata, Alexander G Mathioudakis, Shaker A Mousa, Rupert Bauersachs
Patients with cancer are at increased risk of recurrent venous thromboembolism (VTE) and bleeding. Thus, long-term treatment with anticoagulants for secondary prevention is challenging. The objective of this review was to evaluate current evidence on the safety and efficacy of tinzaparin compared with other anticoagulants for long-term VTE treatment in patients with cancer. Based on a preregistered protocol, we identified randomized controlled trials (RCTs) comparing long-term tinzaparin (therapeutic dose: 175 IU/kg) versus other anticoagulants for at least 3 months after an acute episode of VTE that included adult patients with underlying malignancy...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28056701/rivaroxaban-vs-warfarin-on-extended-deep-venous-thromboembolism-treatment-a-cost-analysis
#4
Adem I Diken, Adnan Yalçınkaya, Muhammet O Hanedan, Mehmet E Erol, Özlem Ercen Diken
Background Standard treatment for deep venous thromboembolism involves parenteral anticoagulation overlapping with a vitamin K antagonist, an approach that is effective but associated with limitations including the need for frequent coagulation monitoring. The direct oral anticoagulant rivaroxaban is similarly effective to standard therapy as a single-drug treatment for venous thromboembolism and does not require routine coagulation monitoring. The aim of this analysis was to project the long-term costs and outcomes for rivaroxaban compared to standard of care (tinzaparin/warfarin)...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28029329/tissue-factor-as-a-predictor-of-recurrent-venous-thromboembolism-in-malignancy-biomarker-analyses-of-the-catch-trial
#5
Alok A Khorana, Pieter W Kamphuisen, Guy Meyer, Rupert Bauersachs, Mette S Janas, Mikala F Jarner, Agnes Y Y Lee
Purpose Circulating tissue factor (TF) has been studied as a biomarker for predicting initial, but not recurrent, venous thromboembolism (VTE) in cancer, a setting in which predictors are incompletely understood. We evaluated the association of TF, clinical risk factors, and other biomarkers measured at the time of initial VTE with recurrent VTE in a prespecified analysis of the CATCH (Comparison of Acute Treatments in Cancer Hemostasis) trial. Methods CATCH was a randomized, multicenter trial that investigated tinzaparin 175 IU/kg once daily or dose-adjusted warfarin for 6 months in patients with cancer and acute, symptomatic VTE...
April 1, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27887785/thromboelastography-teg%C3%A2-demonstrates-that-tinzaparin-4500-international-units-has-no-detectable-anticoagulant-activity-after-caesarean-section
#6
S Griffiths, C Woo, V Mansoubi, A Riccoboni, A Sabharwal, S Napier, M Columb, M Laffan, G Stocks
BACKGROUND: Low molecular weight heparin is routinely used for thromboprophylaxis in pregnancy and the puerperium. Consensus guidelines recommend waiting 10-12h after administration of a thromboprophylactic dose of low molecular weight heparin before performing a neuraxial block or removing an epidural catheter. Thromboelastography (TEG®) has been reported to be sensitive to the effects of enoxaparin 4h after administration. The purpose of this study was to use TEG to examine coagulation changes in the first 10h after a thromboprophylactic dose of tinzaparin in an attempt to ratify the current consensus guidelines about timing of neuraxial blockade and epidural catheter removal...
February 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/27720420/perioperative-thromboprophylaxis-in-severely-obese-patients-undergoing-bariatric-surgery-insights-from-a-french-national-survey
#7
Pierre-Antoine Moulin, Anne Dutour, Patricia Ancel, Pierre-Emmanuel Morange, Thierry Bege, Olivier Ziegler, Stéphane Berdah, Corinne Frère, Bénédicte Gaborit
BACKGROUND: Venous thromboembolism (VTE) is a leading cause of death in obese patients undergoing bariatric surgery (BS), but there is neither consensus nor high-level guidelines yet on VTE prophylaxis in this specific population. OBJECTIVE: We aimed to evaluate patterns of BS perioperative thromboprophylaxis practices. SETTING: French obesity specialized care centers (CSO), which are tertiary care referral hospitals for the most severe cases of obesity METHODS: A detailed questionnaire survey (11 opened, 15 closed questions) investigating their prophylactic schemes of anticoagulation (molecule, dose, weight-adjustment, duration, associated measures, follow-up) was sent to the 37 CSO...
February 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27609342/the-antithrombotic-potential-of-tinzaparin-and-enoxaparin-upon-thrombin-generation-triggered-in-vitro-by-human-ovarian-cancer-cells-igrov1
#8
Mouna Sassi, Taher Chakroun, Elisabeth Mbemba, Patrick Van Dreden, Ismail Elalamy, Annette K Larsen, Grigoris T Gerotziafas
BACKGROUND: A documented relationship between ovarian cancer and thrombosis does exist. Low-molecular-weight heparins (LMWHs) are cornerstone drugs in the primary prevention and treatment of venous thromboembolic events in patients with cancer. However, cancer cells may alter the efficiency of these antithrombotic agents. OBJECTIVE: We aimed to characterize the procoagulant phenotype of human epithelial ovarian adenocarcinoma cells, IGROV1, and to compare the capacity of tinzaparin and enoxaparin to inhibit thrombin generation triggered by these cells...
March 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27602496/heparins-that-block-vegf-a-mediated-von-willebrand-factor-fiber-generation-are-potent-inhibitors-of-hematogenous-but-not-lymphatic-metastasis
#9
Lukas Goertz, Stefan Werner Schneider, Anna Desch, Frank Thomas Mayer, Julian Koett, Kai Nowak, Ioannis Karampinis, Michael K Bohlmann, Viktor Umansky, Alexander Thomas Bauer
Von Willebrand factor (VWF) serves as a nidus for platelet aggregation and thrombosis. We hypothesize that VWF fibers contribute to the development of venous thromboembolism (VTE) and to metastasis formation. Here, we show that vascular and lymphatic endothelial cells (ECs) express VWF in vitro and release VWF fibers after activation by tumor cell supernatants. In contrast, an ex vivo analysis of primary mouse tumors revealed the presence of VWF fibers in the blood microvasculature but not in lymphatic vessels...
October 18, 2016: Oncotarget
https://www.readbyqxmd.com/read/27572887/low-molecular-weight-heparin-for-the-treatment-of-unexplained-recurrent-miscarriage-with-negative-antiphospholipid-antibodies
#10
Omar M Shaaban, Ahmed M Abbas, Kamal M Zahran, Mohamed M Fathalla, Mohamed A Anan, Safwat A Salman
BACKGROUND: Recurrent miscarriage (RM) is one of the most common clinical problems in reproduction with no definite cause in about 50% of the cases. The study aims to evaluate the effect of low-molecular-weight heparin (LMWH) in the treatment of women with RM negatively tested for antiphospholipid antibodies (APAs). METHODS: An open-labeled registered randomized controlled study (NCT 01608347) included women who attended the outpatient clinic in Assiut Women Health Hospital and Nag-Hamady Central Hospital, Egypt, with 3 or more unexplained RM...
January 1, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27549988/sevuparin-binds-to-multiple-adhesive-ligands-and-reduces-sickle-red-blood-cell-induced-vaso-occlusion
#11
Marilyn J Telen, Milena Batchvarova, Siqing Shan, Petra H Bovee-Geurts, Rahima Zennadi, Anna Leitgeb, Roland Brock, Maria Lindgren
Sevuparin is a novel drug candidate in phase II development as a treatment for vaso-occlusive crises (VOC) in patients with sickle cell disease (SCD). As a heparin-derived polysaccharide, sevuparin has been designed to retain anti-adhesive properties, while the antithrombin-binding domains have been eliminated, substantially diminishing its anticoagulant activity. Here, we demonstrate that sevuparin inhibits the adhesion of human sickle red blood cells (SS-RBCs) to stimulated cultured endothelial cells in vitro...
December 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27441664/compatibility-of-injectable-anticoagulant-agents-in-ethanol-in-vitro-antibiofilm-activity-and-impact-on-polyurethane-catheters-of-enoxaparin-400-u-ml-in-40-v-v-ethanol
#12
Damien Balestrino, Mercédès Quintana, Nicolas Charbonnel, Christiane Forestier, Claire Lartigue, Bertrand Souweine
BACKGROUND AND OBJECTIVES: Interdialytic lock solutions should maintain catheter patency and prevent catheter infections. We aimed to determine in which conditions injectable anticoagulant agents (IAAs) combined with ethanol are compatible and to assess the antibiofilm activity of the selected combination and its effects on dialysis catheters (DC). METHODS: The solubility and compatibility of unfractionated heparin (UFH), low molecular weight heparins (LMWHs), heparinoids and fondaparinux (50 to 2,500 U/mL) in 30 to 70% ethanol were determined by visual observation...
2016: PloS One
https://www.readbyqxmd.com/read/27435911/extracellular-vesicles-from-malignant-effusions-induce-tumor-cell-migration-inhibitory-effect-of-lmwh-tinzaparin
#13
Hans Gamperl, Corinna Plattfaut, Annika Freund, Tabea Quecke, Friederike Theophil, Frank Gieseler
Elevated levels of extracellular vesicles (EVs) have been correlated with inflammatory diseases as well as progressive and metastatic cancer. By presenting tissue factor (TF) on their membrane surface, cellular microparticles (MPs) activate both the coagulation system and cell-signaling pathways such as the PAR/ERK pathway. We have shown before that malignant effusions are a rich source of tumor cell-derived EVs. Here, we used EVs from malignant effusions from three different patients after serial low-speed centrifugation steps as recommended by the ISTH (lsEV)...
October 2016: Cell Biology International
https://www.readbyqxmd.com/read/27161722/po-34-optimal-doses-of-tinzaparin-to-reduce-both-cancer-associated-thrombosis-and-tumor-growth-in-a-mouse-model-of-ectopic-pancreatic-syngeneic-tumor
#14
L Panicot-Dubois, S Mezouar, L Plantureux, L Crescence, C Frère, C Dubois
INTRODUCTION: In clinical studies, thromboprophylaxis with low-molecular-weight heparins (LMWHs) has been demonstrated to reduce the risk of venous thromboembolism and to improve outcomes in cancer patients. Moreover, preclinical models have previously suggested that LMWHs may also offer additional benefits through direct antitumor properties. However, the optimal doses of LMWHs that may prevent both cancer-related thrombosis and tumor development are yet unknown. AIM: The goal of this study was to determine the optimal doses of tinzaparin that may prevent both cancer-related thrombosis and tumor development in a syngeneic ectopic model of pancreatic cancer...
April 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27161687/oc-14-baseline-d-dimer-levels-are-predictive-of-recurrent-venous-thromboembolism-vte-at-6-months-in-cancer-patients-with-vte-treated-with-tinzaparin
#15
C I Piatek, S T Tagawa, D Wei-Tsai, D Hanna, I C Weitz, C O'Connell, L Rochanda, S Groshen, H A Liebman
INTRODUCTION: VTE is a major complication in cancer patients. Despite treatment with low molecular weight heparin (LMWH), 9% will have recurrent VTE within 6 months. Measurement of plasma biomarkers in cancer patients receiving LMWH may be predictive of recurrent VTE or overall survival (OS). AIM: We conducted a single arm phase 2 study to evaluate the efficacy and safety of once daily tinzaparin for the initial treatment and extended prophylaxis of VTE in cancer patients...
April 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27011369/the-presence-of-heparins-during-decidualization-modulates-the-response-of-human-endometrial-stromal-cells-to-il-1%C3%AE-in-vitro
#16
Julia Spratte, Frauke Bornkessel, Florian Schütz, Marek Zygmunt, Herbert Fluhr
PURPOSE: The aim of this paper is to study the impact of heparin on the response of human endometrial stromal cells (ESCs) to interleukin (IL)-1β during decidualization in vitro. METHODS: ESCs were isolated from hysterectomy specimens of premenopausal women undergoing hysterectomy for benign reasons; decidualized in vitro and incubated in parallel with unfractionated heparin or tinzaparin; and stimulated with IL-1β at days 0, 3, 6, and 9 during decidualization...
July 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/26808621/higher-tinzaparin-dosing-is-needed-to-achieve-target-anti-xa-levels-in-pediatric-cardiac-intensive-care-patients
#17
Peter P Roeleveld, Alieke van der Hoeven, Rob B P de Wilde, Jeroen Eikenboom, Frans J Smiers, Heleen E Bunker-Wiersma
OBJECTIVES: This study was conducted to evaluate tinzaparin dosing and therapeutic drug monitoring. DESIGN: Retrospective study. SETTING: Single tertiary-level PICU. PATIENTS: Tinzaparin doses and anti-Xa levels from all children admitted to a PICU (from October 1, 2010, to December 31, 2013) were retrospectively analyzed. Thirty-nine children, median age of 13 months (interquartile range, 73 mo), with 46 episodes of newly started therapeutic tinzaparin were identified...
March 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/26684281/low-molecular-weight-heparins-for-managing-vaso-occlusive-crises-in-people-with-sickle-cell-disease
#18
REVIEW
Esther J van Zuuren, Zbys Fedorowicz
BACKGROUND: Sickle cell disease is one of the most common and severe genetic disorders in the world. It can be broadly divided into two distinct clinical phenotypes characterized by either haemolysis or vaso-occlusion. Pain is the most prominent symptom of vaso-occlusion, and hypercoagulability is a well-established pathogenic phenomenon in people with sickle cell disease. Low-molecular-weight heparins might control this hypercoagulable state through their anticoagulant effect. This is an update of a previously published version of this review...
December 18, 2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26603039/thromboelastometry-versus-free-oscillation-rheometry-and-enoxaparin-versus-tinzaparin-an-in-vitro-study-comparing-two-viscoelastic-haemostatic-tests-dose-responses-to-two-low-molecular-weight-heparins-at-the-time-of-withdrawing-epidural-catheters-from-ten-patients
#19
COMPARATIVE STUDY
Owain Thomas, Anna Larsson, Nahreen Tynngård, Ulf Schött
BACKGROUND: Monitoring low molecular weight heparins (LMWH's) in the perioperative period is prudent in patients at high risk of coagulative complications, especially when the patient has an epidural catheter requiring withdrawal, which is associated with the risk of spinal haematoma. The aim of this study was to evaluate the in vitro dose-responses of two different LMWH's on two different viscoelastic haemostatic tests, using blood sampled from patients with normal routine coagulation parameters, on the day after major surgery when their epidural catheters were due to be withdrawn...
November 24, 2015: BMC Anesthesiology
https://www.readbyqxmd.com/read/26507065/-erythema-after-subcutaneous-heparin-treatment
#20
A J W M Anita Brouns, K S G Asiong Jie
BACKGROUND: Heparin-induced skin lesions are common. The majority are delayed-type hypersensitivity reactions to heparin or other components of the injection fluid. Differentiation from heparin-induced thrombocytopenia (HIT) skin lesions is important. The Warkentin 4T's score is helpful for assessment of the risk of HIT. CASE DESCRIPTION: A 36-year old female was treated with injections of tinzaparin for a deep vein thrombosis. After 16 days, she developed progressive thrombocytopenia and a skin lesion at one of the injection sites...
2015: Nederlands Tijdschrift Voor Geneeskunde
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