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https://www.readbyqxmd.com/read/28078351/outcomes-of-low-molecular-weight-heparin-treatment-for-venous-thromboembolism-in-patients-with-primary-and-metastatic-brain-tumours
#1
Chatree Chai-Adisaksopha, Lori-Ann Linkins, Said Y ALKindi, Matthew Cheah, Mark A Crowther, Alfonso Iorio
Venous thromboembolism (VTE) is one of the most common complications in patients with brain tumours. There is limited data available in the literature on VTE treatment in these patients. We conducted a matched retrospective cohort study of patients with primary or metastatic brain cancer who were diagnosed with cancer-associated VTE. Patients were selected after a retrospective chart review of consecutive patients who were diagnosed with cancer-associated VTE between January 2010 and January 2014 at the Juravinski Thrombosis Clinic, Hamilton, Canada...
January 12, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28077296/extracellular-vesicle-communication-pathways-as-regulatory-targets-of-oncogenic-transformation
#2
REVIEW
Dongsic Choi, Tae Hoon Lee, Cristiana Spinelli, Shilpa Chennakrishnaiah, Esterina D'Asti, Janusz Rak
Pathogenesis of human cancers bridges intracellular oncogenic driver events and their impact on intercellular communication. Among multiple mediators of this 'pathological connectivity' the role of extracellular vesicles (EVs) and their subsets (exosomes, ectosomes, oncosomes) is of particular interest for several reasons. The release of EVs from cancer cells represents a unique mechanism of regulated expulsion of bioactive molecules, a process that also mediates cell-to-cell transfer of lipids, proteins, and nucleic acids...
January 8, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28075424/managing-challenging-patients-with-venous-thromboembolism-a-practical-case-based-approach
#3
James Douketis, Walter Ageno, Marc Carrier, Clive Kearon
The management of patients with venous thromboembolism is a common clinical scenario that, for the most part, involves well-established, evidence-based treatment pathways. However, important unanswered clinical questions remain that are the focus of ongoing research. The aim of this narrative review is to provide a practical, case-based approach to the following clinical scenarios in which therapeutic management pathways are less well established: How long to anticoagulated patients with a first unprovoked venous thromboembolism? How to manage complex patients with cancer-associated venous thromboembolism? When and how to treat patients with splanchnic vein thrombosis? When to use thrombolytic therapy for deep vein thrombosis?...
January 4, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28073783/podoplanin-expression-in-primary-brain-tumors-induces-platelet-aggregation-and-increases-risk-of-venous-thromboembolism
#4
Julia Riedl, Matthias Preusser, Pegah Mir Seyed Nazari, Florian Posch, Simon Panzer, Christine Marosi, Peter Birner, Johannes Thaler, Christine Brostjan, Daniela Lötsch, Walter Berger, Johannes A Hainfellner, Ingrid Pabinger, Cihan Ay
Venous thromboembolism (VTE) is common in patients with brain tumors, and underlying mechanisms are unclear. We hypothesized that podoplanin, a sialomucin-like glycoprotein, increases the risk of VTE in primary brain tumors via its ability to induce platelet aggregation. Immunohistochemical staining against podoplanin and intratumoral platelet aggregates was performed in brain tumor specimens of 213 patients (mostly high-grade gliomas [89%]) included in the Vienna Cancer and Thrombosis Study (CATS), a prospective observational cohort study of patients with newly diagnosed cancer or progressive disease aimed at identifying patients at risk of VTE...
January 10, 2017: Blood
https://www.readbyqxmd.com/read/28065857/dream-as-a-novel-therapeutic-target-for-anti-thrombotic-agents
#5
Jaehyung Cho
Circulating platelets participate in the process of numerous diseases including thrombosis, inflammation, and cancer. Thus, it is of great importance to understand the underlying mechanisms mediating platelet activation under disease conditions. Emerging evidence indicates that despite the lack of a nucleus, platelets possess molecules involved in gene transcription occurring in nucleated cells. This review will summarize downstream regulatory element antagonist modulator (DREAM), a transcriptional repressor, and highlight recent findings suggesting its novel non-transcriptional role in hemostasis and thrombosis...
January 5, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28062176/characteristics-and-surgical-management-of-flap-compromise-caused-by-thrombosis-of-the-internal-jugular-vein
#6
Bin Yang, Yi Qu, Ming Su, Jinzhong Li, Hua Li, Rudong Xing, Zhengxue Han
BACKGROUND: A principal reason for flap compromise in oral and maxillofacial head and neck surgery, and failure of a free flap transfer, is thrombosis of a drainage vein such as the internal jugular vein. This study characterized flap compromise caused by internal jugular vein thrombosis after a free flap transfer, and its management. PATIENTS AND METHODS: A retrospective clinical study was conducted of 306 consecutive microvascular free flaps performed for 305 patients with head and neck cancer from March 2003 to March 2013 at the Department of Oral and Maxillofacial Surgery at Beijing Stomatological Hospital, Capital Medical University...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28061688/aptamers-as-therapeutics
#7
Shahid M Nimjee, Rebekah R White, Richard C Becker, Bruce A Sullenger
Aptamers are single-stranded nucleic acid molecules that bind to and inhibit proteins and are commonly produced by systematic evolution of ligands by exponential enrichment (SELEX). Aptamers undergo extensive pharmacological revision, which alters affinity, specificity, and therapeutic half-life, tailoring each drug for a specific clinical need. The first therapeutic aptamer was described 25 years ago. Thus far, one aptamer has been approved for clinical use, and numerous others are in preclinical or clinical development...
January 6, 2017: Annual Review of Pharmacology and Toxicology
https://www.readbyqxmd.com/read/28058802/increased-thrombin-generation-in-a-mouse-model-of-cancer-cachexia-is-partially-interleukin-6-dependent
#8
Caroline J Reddel, John D Allen, Anahid Ehteda, Ryland Taylor, Vivien M Y Chen, Jennifer L Curnow, Leonard Kritharides, Graham Robertson
BACKGROUND: Cancer cachexia and cancer-associated thrombosis are potentially fatal outcomes of advanced cancer which have not previously been mechanistically linked. The colon 26 (C26) carcinoma is a well-established mouse model of complications of advanced cancer cachexia, partially dependent on high levels of interleukin-6 (IL-6) produced by the tumor. OBJECTIVES: To assess if cancer cachexia altered coagulation state and if this was attributable to tumor IL-6 production...
January 6, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28050234/how-to-assess-the-efficacy-or-failure-of-targeted-therapy-deciding-when-to-stop-sorafenib-in-hepatocellular-carcinoma
#9
REVIEW
Jean-Luc Raoul, Xavier Adhoute, Marine Gilabert, Julien Edeline
Sorafenib is thus far the only systemic treatment for hepatocellular carcinoma (HCC) based on the results of two randomized controlled trials performed in Western and in Eastern countries, despite a poor response rate (from 2% to 3.3%) following conventional evaluation criteria. It is now recognized that the criteria (European Association of the Study of the Liver criteria, modified response evaluation criteria in solid tumors) based on contrast enhanced techniques (computed tomography scan, magnetic resonance imaging) aimed to assess the evolution of the viable part of the tumor (hypervascularized on arterial phase) are of major interest to determine the efficacy of sorafenib and of most antiangiogenic drugs in patients with HCC...
December 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/28044258/tumor-vascular-infarction-prospects-and-challenges
#10
REVIEW
Rana Jahanban-Esfahlan, Khaled Seidi, Nosratollah Zarghami
Induction of thrombosis in tumor vasculature represents an appealing strategy for combating cancer. Formation of fibrin clots may be sufficient to occlude the blood vessels that feed tumor cells, contributing to massive ischemia, vascular infarction, and the subsequent necrosis and apoptosis of neoplastic cells. This approach called as tumor vascular infarction was pioneered by Huang et al. (Science 275:547-550, 1997). Since then, different vascular targeting moieties were linked to a truncated form of human tissue factor (tTF), to generate coaguligands with selective thrombotic activities on tumor neovasculature...
January 2, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28042112/mobile-pump-deep-vein-thrombosis-prophylaxis-just-say-no-to-drugs
#11
J Haynes, R L Barrack, D Nam
AIMS: The purpose of this article was to review the current literature pertaining to the use of mobile compression devices (MCDs) for venous thromboembolism (VTE) following total joint arthroplasty (TJA), and to discuss the results of data from our institution. PATIENTS AND METHODS: Previous studies have illustrated higher rates of post-operative wound complications, re-operation and re-admission with the use of more aggressive anticoagulation regimens, such as warfarin and factor Xa inhibitors...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28039844/low-molecular-weight-heparin-versus-vitamin-k-antagonists-for-the-treatment-of-cancer-associated-thrombosis-a-cost-effectiveness-analysis
#12
Nathan T Connell, Gregory A Abel, Jean M Connors
INTRODUCTION: Cancer-associated venous thromboembolism (VTE) is primarily treated with low-molecular weight heparin (LMWH), a strategy based on studies showing it to be superior to the vitamin K antagonist (VKA) warfarin for preventing VTE recurrence. Subsequent analyses suggest that the magnitude of this benefit might be less than previously determined. Neither patient-focused measures of utility nor the costs of each strategy have been evaluated in the current treatment era. METHODS: This is a cost-effectiveness analysis of VKA and LMWH for the treatment of cancer-associated thrombosis through use of a microsimulation model of outcomes for competing anticoagulation management strategies from a 2014 United States societal perspective...
December 22, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/28035750/bleeding-risk-of-terminally-ill-patients-hospitalized-in-palliative-care-units-the-rheso-study
#13
Bernard Tardy, Stéphane Picard, Frédéric Guirimand, Céline Chapelle, Marie Delerue Danel, Thomas Celarier, Jean-François Ciais, Pascale Vassal, Sébastien Salas, Marilène Filbet, Jean-Marie Gomas, Aline Guillot, Jean-Baptiste Gaultier, Adel Merah, Anne Richard, Silvy Laporte, Laurent Bertoletti
BACKGROUND: The value of primary thromboprophylaxis in patients admitted to palliative care units is debated. Moreover, the bleeding risk of these patients is unknown. OBJECTIVES: Our primary aim was to assess the bleeding risk of patients in a real-world practice setting of hospital palliative care. Our secondary aim was to determine the incidence of symptomatic deep-vein thrombosis and to identify risk factors for bleeding. PATIENTS/METHODS: In this prospective, observational study in 22 French palliative care units, 1199 patients (median age: 71 years, male: 45...
December 30, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28027734/prevalence-and-characteristics-of-intravertebral-enhancement-on-contrast-enhanced-ct-scans-in-cancer-patients
#14
Benjamin Rasselet, Ahmed Larbi, Pierre Viala, Nicolas Molinari, Raphael Tetreau, Marie Faruch-Bilfeld, Patrice Taourel, Catherine Cyteval
STUDY DESIGN: This was a single center, retrospective observational study. OBJECTIVE: to investigate-in a cancer population-the prevalence and hallmarks of intravertebral enhancement (IVE) detected on contrast-enhanced CT. SUMMARY OF BACKGROUND DATA: Intravertebral enhancements secondary to iodinated contrast stagnation have been described. Cancer patients have an increased risk of perivertebral venous thrombosis or stenosis secondary to several risk factors (cancer or drug induced hypercoagulability, deterioration of venous flow linked to catheter insertion, prolonged immobilization)...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28027659/oral-rivaroxaban-for-the-treatment-of-symptomatic-venous-thromboembolism-in-400-patients-with-active-cancer
#15
Bruno Soriano Pignataro, Kenji Nishinari, Rafael Noronha Cavalcante, Guilherme Centofanti, Guilherme Yazbek, Mariana Krutman, Guilherme Andre Zotelle Bomfim, Igor Yoshio Imagawa Fonseca, Marcelo Passos Teivelis, Nelson Wolosker, Solange Moraes Sanches, Eduardo Ramacciotti
PURPOSE: To study the safety and efficacy of rivaroxaban-a direct oral anticoagulant-use in patients with active cancer and venous thromboembolism (VTE). PATIENTS AND METHODS: Retrospective cohort study of 400 patients with active cancer and associated VTE, defined as deep venous thrombosis and/or pulmonary embolism. This single-center study was carried out from January 2012 to June 2015. The aim of this study was to determine the efficacy and safety, using the incidence of recurrent symptomatic VTE and major bleeding, respectively, throughout the treatment with rivaroxaban...
January 1, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28024507/-correlation-of-thrombosis-and-prothrombotic-state-with-coagulation-factor-v-gene-polymorphism-and-apcr-hhcy
#16
Li-Xia Gao, Qiu-Lan Ding, Ke-Xiong Wu, Jun Hu, Xue-Feng Wang, Chuan-Ling Dong, Qin Dai, Bing Zhang, Jin Dai, Ping He, Xue-Ping Zhang, Yun-Xia Wang
OBJECTIVE: To investigate the correlation of patients with thrombosis or prothrombotic status with hyperhomocysteinemia (HHcy), activated protein C-resistance(APCR) and gene polymorphism of coagulation factor V. METHODS: Three hundred healthy voluteers were selected as controls, 223 cases of thrombosis (80 cases of cerebral infarction of CT, the MI of 82 cases of myocardial infarction, venous thrombosis of VTE 61 cases), 270 cases of patients with prothrombotic state (76 cases of pregnancy disease of PIH, 62 cases of chronic obstructive pulmonary disease (COPD), 60 cases of diabetes(DM) and 72 cases of cancer) were enrolled in this study...
December 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28012224/continuation-of-low-molecular-weight-heparin-treatment-for-cancer-related-venous-thromboembolism-a-prospective-cohort-study-in-daily-clinical-practice
#17
S J van der Wall, F A Klok, P L den Exter, D Barrios, R Morillo, S C Cannegieter, D Jimenez, M V Huisman
: Essentials Low-molecular-weight heparin (LMWH) injections for venous thromboembolism (VTE) may be burdensome. Patients with active cancer and confirmed VTE were included to evaluate LMWH continuation. The cumulative incidence of discontinuation was 21% after a median period of 90 days. One out of five patients discontinued LMWH injections because of side effects. SUMMARY: Background Current guidelines recommend low -molecular -weight heparin (LMWH) monotherapy for 3-6 months as the first-line treatment for cancer-associated venous thromboembolism (VTE)...
November 5, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28009964/the-three-players-of-mechanical-valve-thrombosis-cancer-anticancer-therapy-and-thromboprophylaxis
#18
Alberto Banzato, Gentian Denas, Giuseppe Lombardi, Ardi Pambuku, Alessandra Bianchi, Vittorio Pengo
Letter to the Editor Patients with a mechanical heart prosthesis require lifelong anticoagulation to prevent valve thrombosis that could lead to deleterious complications or even death. LMWH protocols have proven feasible and safe in most mechanical prosthesis bearers requiring an interruption of oral anticoagulation because of surgery. However, some patient populations have not been included in trials and might behave differently. To this end, we would like to present the case of a 56-year-old man with mechanical aortic prosthesis treated with bevacizumab...
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28002372/preoperative-prevalence-of-and-risk-factors-for-venous-thromboembolism-in-patients-with-a-hip-fracture-an-indirect-multidetector-ct-venography-study
#19
Won Chul Shin, Seung Hun Woo, Seung-Jun Lee, Jung Sub Lee, Choongrak Kim, Kuen Tak Suh
BACKGROUND: This retrospective cohort study investigated the prevalence of and risk factors for preoperative venous thromboembolism (VTE) in patients with a hip fracture and a delay of >24 hours from injury to surgery. METHODS: This observational study included 208 patients with a hip fracture surgically treated at 1 university hospital between December 2010 and August 2014. Patients underwent indirect multidetector computed tomographic (MDCT) venography for preoperative VTE detection after admission...
December 21, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27991695/application-of-extended-bi-pedicle-anterolateral-thigh-free-flaps-for-reconstruction-of-large-defects-a-case-series
#20
Michele Maruccia, Georgios Orfaniotis, Pedro Ciudad, Fabio Nicoli, Emanuele Cigna, Giuseppe Giudice, Kidakorn Kiranantawat, Diego Ribuffo, Hung-Chi Chen
BACKGROUND: The anterolateral thigh flap is a workforce flap in reconstructive surgery, however, variations in it is vascular anatomy are not uncommon. These variations may affect flap design and survival, especially when large flaps are required. In some anatomical variants the anterolateral thigh flap is supplied by two separate dominant pedicles, and in these cases a bi-pedicle modification may be necessary to ensure complete flap viability. The aim of this report is to evaluate the outcomes, and present our approach in using bi-pedicle anterolateral thigh flaps as a method to reduce the risk of partial flap necrosis when reconstructing sizeable soft tissue defects...
December 19, 2016: Microsurgery
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