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https://www.readbyqxmd.com/read/29242919/association-of-novel-oral-antithrombotics-with-the-risk-of-intraocular-bleeding
#1
Katherine E Uyhazi, Todd Miano, Wei Pan, Brian L VanderBeek
Importance: Novel oral anticoagulation and antiplatelet therapies have become a mainstay of treatment for thromboembolic disease. However, the safety profile of these medications has not been completely characterized. Objective: To determine the risk of developing intraocular hemorrhages with novel oral antithrombotic therapy compared with that of traditional antithrombotic agents. Design, Setting, and Participants: In this retrospective cohort study, a large national insurance claims database was used to generate 2 parallel analyses...
December 14, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29242187/altered-plasma-clot-properties-increase-the-risk-of-recurrent-deep-vein-thrombosis-a-cohort-study
#2
Joanna Cieslik, Sandra Mrozinska, Elzbieta Broniatowska, Anetta Undas
It has been demonstrated that fibrin clots generated from plasma samples obtained from patients with prior thromboembolic events are denser and less susceptible to lysis. Such a prothrombotic fibrin clot phenotype has been suggested as a new risk factor for venous thromboembolism, but its prognostic value is unclear. To assess whether abnormal clot properties can predict recurrent deep-vein thrombosis (DVT), we studied 320 consecutive patients aged 18 to 70 years following the first-ever DVT. Plasma clot properties were evaluated after 3 months of anticoagulant treatment since the index event...
December 14, 2017: Blood
https://www.readbyqxmd.com/read/29238189/diethyl-citrate-and-sodium-citrate-reduce-the-cytotoxic-effects-of-nanosized-hydroxyapatite-crystals-on-mouse-vascular-smooth-muscle-cells
#3
Chong-Yu Zhang, Xin-Yuan Sun, Jian-Ming Ouyang, Bao-Song Gui
Objective: This study aimed to investigate the damage mechanism of nanosized hydroxyapatite (nano-HAp) on mouse aortic smooth muscle cells (MOVASs) and the injury-inhibiting effects of diethyl citrate (Et2Cit) and sodium citrate (Na3Cit) to develop new drugs that can simultaneously induce anticoagulation and inhibit vascular calcification. Methods: The change in cell viability was evaluated using a cell proliferation assay kit, and the amount of lactate dehydrogenase (LDH) released was measured using an LDH kit...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29228158/percutaneous-left-atrial-appendage-occlusion-in-atrial-fibrillation-patients-with-a-contraindication-to-oral-anticoagulation-a-focused-review
#4
Marin Nishimura, Shiv Sab, Ryan R Reeves, Jonathan C Hsu
Stroke is the most feared complication of atrial fibrillation (AF). Although oral anticoagulation with non-vitamin K antagonist and non-vitamin K antagonist oral anticoagulants (NOACs) have been established to significantly reduce risk of stroke, real-world use of these agents are often suboptimal due to concerns for adverse events including bleeding from both patients and clinicians. Particularly in patients with previous serious bleeding, oral anticoagulation may be contraindicated. Left atrial appendage occlusion (LAAO), mechanically targeting the source of most of the thrombi in AF, holds an immense potential as an alternative to OAC in management of stroke prophylaxis...
December 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29224646/association-of-insurance-type-with-receipt-of-oral-anticoagulation-in-insured-patients-with-atrial-fibrillation-a-report-from-the-american-college-of-cardiology-ncdr-pinnacle-registry
#5
Celina M Yong, Yuyin Liu, Patricia Apruzzese, Gheorghe Doros, Christopher P Cannon, Thomas M Maddox, Anil Gehi, Jonathan C Hsu, Steven A Lubitz, Salim Virani, Mintu P Turakhia
BACKGROUND: It is poorly understood whether insurance type may be a major contributor to the underuse of oral anticoagulation (OAC) among patients with atrial fibrillation (AF), particularly for novel oral anticoagulants (NOACs). METHODS: We performed a retrospective cohort registry study of patients with insurance, AF, CHA2DS2-VASc ≥2, and at least one outpatient encounter recorded in the ACC NCDR's PINNACLE Registry between January 1, 2011 and December 31, 2014...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29224364/new-anticoagulants-for-venous-thromboembolism-and-atrial-fibrillation-what-the-future-holds
#6
Gerasimos Dimitropoulos, S M Zubair Rahim, Alexandra Sophie Moss, Gregory Y H Lip
Introduction The field of anticoagulation has seen impressive progress over the last decade. The introduction of the Non Vitamin K Oral Anticoagulants (NOACs) has revolutionized practice surrounding thromboprophylaxis, treatment of thromboembolic disease and stroke prevention in atrial fibrillation (AF). However, the search for the "holy grail" of anticoagulation, an agent that combines optimal efficacy with minimal bleeding diathesis, continues. Areas covered In this paper we aim to summarize the current evidence from pre-clinical studies and early phase clinical trials, presenting the pharmacodynamic and pharmacokinetic properties as well as the safety and efficacy profiles of the most important antithrombotic agents in development...
December 9, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/29223431/international-trends-in-clinical-characteristics-and-oral-anticoagulation-treatment-for-patients-with-atrial-fibrillation-results-from-the-garfield-af-orbit-af-i-and-orbit-af-ii-registries
#7
Benjamin A Steinberg, Haiyan Gao, Peter Shrader, Karen Pieper, Laine Thomas, A John Camm, Michael D Ezekowitz, Gregg C Fonarow, Bernard J Gersh, Samuel Goldhaber, Sylvia Haas, Werner Hacke, Peter R Kowey, Jack Ansell, Kenneth W Mahaffey, Gerald Naccarelli, James A Reiffel, Alexander Turpie, Freek Verheugt, Jonathan P Piccini, Ajay Kakkar, Eric D Peterson, Keith A A Fox
Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world. We aimed to provide comprehensive data on international patterns of AF stroke prevention treatment. METHODS: Demographics, comorbidities, and stroke risk of the patients in the GARFIELD-AF (n=51,270), ORBIT-AF I (n=10,132), and ORBIT-AF II (n=11,602) registries were compared (overall N=73,004 from 35 countries). Stroke prevention therapies were assessed among patients with new-onset AF (≤6 weeks). RESULTS: Patients from GARFIELD-AF were less likely to be white (63% vs 89% for ORBIT-AF I and 86% for ORBIT-AF II) or have coronary artery disease (19% vs 36% and 27%), but had similar stroke risk (85% CHA2DS2-VASc ≥2 vs 91% and 85%) and lower bleeding risk (11% with HAS-BLED ≥3 vs 24% and 15%)...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29222248/direct-oral-anticoagulants-now-also-for-prevention-and-treatment-of-cancer-associated-venous-thromboembolism
#8
REVIEW
Ingrid Pabinger, Julia Riedl
Data on specific studies in cancer patients using direct oral anticoagulants (DOACs) for the prevention and treatment of venous thromboembolism (VTE) are still scarce. For preventing VTE with DOACs, current experience is still very limited, so definite conclusions cannot yet be drawn. However, DOACs have so far been compared with vitamin K antagonists (VKAs) in patients with acute VTE in 5 studies, and several hundreds of patients included in these studies had either active cancer, a history of cancer, or a new occurrence of cancer during the course of disease...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29216785/orbit-score-an-useful-predictor-of-small-bowel-rebleeding-in-patients-under-chronic-anticoagulation
#9
Tiago Cúrdia Gonçalves, Cátia Arieira, Sara Monteiro, Bruno Rosa, Maria João Moreira, José Cotter
BACKGROUND AND STUDY AIMS: Available scoring systems to assess the risk for major bleeding in patients on chronic anticoagulation seem inadequate in predicting higher diagnostic yields of small bowel capsule endoscopy (SBCE) or higher rebleeding rates in patients with suspected small bowel bleeding. The aim of this study was to evaluate the ability of the new ORBIT score in predicting positive findings of SBCE or higher rebleeding rates in chronically anticoagulated patients with suspected small bowel bleeding...
December 7, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29216479/diagnosis-of-deep-vein-thrombosis-recurrence-ultrasound-criteria
#10
REVIEW
Mario Maufus, Antoine Elias, Marie-Thérèse Barrellier, Gilles Pernod
INTRODUCTION: Recurrent deep vein thrombosis (DVT) is often suspected in patients after anticoagulant drug withdrawal. The clinical signs can be confused with the onset of post-thrombotic syndrome. For these reasons, diagnosis of DVT recurrence must rely on an accurate method. MATERIALS AND METHODS: In order to assess this challenging clinical issue, we performed an overview of the literature regarding ultrasound criteria for the diagnosis of recurrent DVT through a Medline search, which included articles published from January 1, 1980 to February 20, 2017...
November 14, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29214062/management-of-oral-antiplatelet-agents-and-anticoagulation-therapy-before-bronchoscopy
#11
REVIEW
Houssein A Youness, Jean Keddissi, Ilya Berim, Ahmed Awab
Although, bronchoscopy is a relatively safe procedure, small amount of bleeding in the airway can have serious consequences. Careful consideration of the risks of diagnostic and therapeutic bronchoscopic intervention can help minimize potential complications. With increasing number of patients using antiplatelet and anticoagulation therapies, strategies for minimizing thromboembolic and operative bleeding events need to be included in the risk and benefit analyses. Growing evidence suggests that aspirin is safe and does not increase bleeding during bronchoscopy...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29210752/lactobacillus-casei-beneficially-modulates-immuno-coagulative-response-in-an-endotoxemia-model
#12
Cecilia Haro, María E Mónaco, Marcela Medina
: The current study aims at evaluating the effect of the oral administration of Lactobacillus casei CERELA (CRL) 431 on parameters implicated in inflammation-coagulation interaction using a model of acute inflammation induced by lipopolysaccharide (LPS) in mice. Six-week-old Balb/c mice were treated with L. casei for 5 consecutive days. Then treated and untreated mice received an LPS injection (L. casei + LPS and LPS groups, respectively). Liver and kidney were removed, blood samples were obtained, and hemostatic and inflammatory parameters were evaluated at different times post LPS injection...
November 27, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29203044/-new-international-guidelines-for-curative-treatment-and-prophylaxis-for-venous-thromboembolism-vte-in-cancer-patients-and-the-dedicated-smartphone-application
#13
I Benzidia, J Connault, A Solanilla, U Michon-Pasturel, M Jamelot, M K Nguessan, A Hij, C Le Maignan, D Farge, C Frère
Venous thromboembolism (VTE) is a frequent and serious complication in cancer patients, and the second leading cause of death in this setting. Cancer patients are also more likely to present recurrent VTE and major bleeding while taking anticoagulants. Management of VTE in these patients is always challenging and remains suboptimal worldwide. In 2013, the International Initiative on Thrombosis and Cancer (ITAC-CME) released international guidelines for the treatment and prophylaxis of VTE and central venous catheter-associated thrombosis, based on a systematic review of the literature ranked according to the Grading of Recommendations Assessment, Development, and Evaluation scale...
December 2017: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29199852/bleeding-with-oral-anticoagulant-dabigatran-is-highly-associated-with-occult-cancers-in-atrial-fibrillation-patients
#14
Hideki Koike, Tadashi Fujino, Makiko Koike, Shintaro Yao, Katsuya Akitsu, Masaya Shinohara, Hitomi Yuzawa, Takeya Suzuki, Takanori Ikeda
AIM: The aim of this study was to examine cancer and bleeding in atrial fibrillation patients administered with dabigatran. MATERIALS & METHODS: This study enrolled 509 consecutive nonvalvular atrial fibrillation patients who received dabigatran. The mean administration period was 14.8 ± 15.7 months. We investigated the prevalence and new development of cancers. Further, the relation between cancer and adverse events was evaluated. RESULTS: In the 509 patients, major bleeding occurred in 2...
December 4, 2017: Future Cardiology
https://www.readbyqxmd.com/read/29197958/immunohaemostasis-a-new-view-on-haemostasis-during-sepsis
#15
REVIEW
Xavier Delabranche, Julie Helms, Ferhat Meziani
Host infection by a micro-organism triggers systemic inflammation, innate immunity and complement pathways, but also haemostasis activation. The role of thrombin and fibrin generation in host defence is now recognised, and thrombin has become a partner for survival, while it was seen only as one of the "principal suspects" of multiple organ failure and death during septic shock. This review is first focused on pathophysiology. The role of contact activation system, polyphosphates and neutrophil extracellular traps has emerged, offering new potential therapeutic targets...
December 2, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29195844/leaflet-thrombosis-following-transcatheter-aortic-valve-implantation
#16
M Marwan, N Mekkhala, M Göller, J Röther, D Bittner, A Schuhbaeck, M Hell, G Muschiol, J Kolwelter, R Feyrer, C Schlundt, S Achenbach, M Arnold
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is increasingly being offered to high-risk patients with symptomatic aortic valve stenosis. Recent reports have suggested a high incidence of subclinical leaflet thrombosis following bioprosthestic aortic valve replacement. We report the frequency and clinical presentation of leaflet thrombosis identified by cardiac CT in patients referred for follow-up contrast enhanced CT angiography following TAVI. METHODS: 91 consecutive patients referred for follow-up contrast-enhanced CT angiography following TAVI were screened for inclusion in this analysis...
November 9, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29195825/meta-analysis-of-the-safety-and-efficacy-of-the-oral-anticoagulant-agents-apixaban-rivaroxaban-dabigatran-in-patients-with-acute-coronary-syndrome
#17
REVIEW
Safi U Khan, Adeel Arshad, Irbaz Bin Riaz, Swapna Talluri, Fahad Nasir, Edo Kaluski
The significance of adding new oral anticoagulants (NOACs) to antiplatelet therapy in patients with acute coronary syndrome (ACS) is unclear. We conducted a meta-analysis to assess the safety and efficacy of adding NOACs (apixaban, rivaroxaban, and dabigatran) to single antiplatelet agent (SAP) or dual antiplatelet therapy (DAPT) in patients with ACS. Seven randomized controlled trials were selected using PubMed or MEDLINE, Scopus, and Cochrane library (inception to August 2017). The summary measure was random effects hazard ratio (HR) with 95% confidence interval (CI)...
October 31, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29191388/tracing-the-evolution-of-venom-phospholipases-a2-in-gloydius-strauchii-and-related-pitvipers-a-tale-of-two-acidic-isozymes
#18
Zhang-Min Yang, Ying-Zhe Xie, Su-Xian Yan, Zhen-Zhen Liu, Jian-Cheng Song, Zhe-Zhi Wang, Inn-Ho Tsai
Two acidic Asp49-PLA2s with Glu6 substitution and a neutral Lys49-PLA (designated Gst-K49) were cloned from G. strauchii venom glands, their full amino acid sequences were deduced. The predominant acidic PLA2 (designated Gst-E6a) contains 124 residues and the M18W30 substitutions, while the minor acidic PLA2 (designated Gst-E6b) contains 122 residues and the V18A30 substitutions. Their sequences are most similar to those of the respective orthologous PLA2s of G. intermedius venom. Gst-E6a and Gst-E6b appear to be paralogs and possibly have different predatory targets or functions...
November 27, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29188358/anticoagulation-strategies-in-patients-with-atrial-fibrillation-after-pci-or-with-acs-the-end-of-triple-therapy
#19
N Fluschnik, P M Becher, R Schnabel, S Blankenberg, D Westermann
Clinicians struggle daily with the optimal regimen for patients with an indication for antiplatelet therapy after stenting and in patients needing oral anticoagulation treatment for atrial fibrillation (AF). This is not only difficult in patients with acute coronary syndrome (ACS) but also in the large number of patients with AF undergoing elective percutaneous coronary intervention (PCI). The challenge is to strike a balance between the increasing risk of bleeding events and ischemic or thrombotic events. Until recently, guidelines were based on expert consensus and a few small, many of them retrospective, trials...
November 29, 2017: Herz
https://www.readbyqxmd.com/read/29186818/multipurpose-hts-coagulation-analysis-assay-development-and-assessment-of-coagulopathic-snake-venoms
#20
(no author information available yet)
Coagulation assays currently employed are often low throughput, require specialized equipment and/or require large blood/plasma samples. This study describes the development, optimization and early application of a generic low-volume and high-throughput screening (HTS) assay for coagulation activity. The assay is a time-course spectrophotometric measurement which kinetically measures the clotting profile of bovine or human plasma incubated with Ca2+ and a test compound. The HTS assay can be a valuable new tool for coagulation diagnostics in hospitals, for research in coagulation disorders, for drug discovery and for venom research...
November 25, 2017: Toxins
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