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Journal of Thrombosis and Thrombolysis

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https://www.readbyqxmd.com/read/28102475/prospective-evaluation-of-a-bivalirudin-to-warfarin-transition-nomogram
#1
Benjamin Hohlfelder, Katelyn W Sylvester, Jessica Rimsans, David DeiCicchi, Jean M Connors
Bivalirudin may cause a falsely prolonged international normalized ratio (INR) that complicates the discontinuation of bivalirudin when used as a bridge to warfarin. To prospectively validate our novel bivalirudin to warfarin transition nomogram, adult patients who received bivalirudin as a bridge to warfarin between July 2015 and June 2016 were prospectively evaluated, utilizing our predictive nomogram. The major outcome of our analysis was the correlation between the predicted change in INR upon bivalirudin discontinuation based on the nomogram, and the actual change in INR upon bivalirudin discontinuation...
January 19, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28101716/circulating-activated-protein-c-in-thrombophilia-carriers
#2
LETTER
Thijs E van Mens, Joost C M Meijers, Saskia Middeldorp
No abstract text is available yet for this article.
January 18, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28093650/diabetes-mellitus-is-associated-with-increased-bleeding-in-pulmonary-embolism-receiving-conventional-anticoagulant-therapy-findings-from-a-real-world-study
#3
Zhu Zhang, Zhenguo Zhai, Yuanhua Yang, Jun Wan, Wanmu Xie, Jianguo Zhu, Ying H Shen, Chen Wang
Bleeding refers to the most important complication during anticoagulation therapy in patients with pulmonary embolism (PE). However, the incidence and risk factors of bleeding in Chinese population with anticoagulant therapy remains unknown. Although diabetes mellitus (DM) has been demonstrated to increase the risk of PE, little information of its influence on anticoagulation-associated bleeding risk can be available. In our study, 563 acute PE patients, who fulfilled the including criteria were enrolled from a single center and received conventional anticoagulant therapy...
January 16, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28074413/procoagulant-activity-of-extracellular-vesicles-as-a-potential-biomarker-for-risk-of-thrombosis-and-dic-in-patients-with-acute-leukaemia
#4
Gheldof Damien, Haguet Hélène, Dogné Jean-Michel, Bouvy Céline, Graux Carlos, George Fabienne, Sonet Anne, Chatelain Christian, Chatelain Bernard, Mullier François
Haemostatic complication is common for patients with hematologic malignancies. Recent studies suggest that the procoagulant activity (PCA) of extracellular vesicles (EV) may play a major role in venous thromboembolism and disseminated intravascular coagulation (DIC) in acute leukaemia. To study the impact of EVs from leukaemic patients on thrombin generation and to assess EV-PCA as a potential biomarker for thrombotic complications in patients with acute leukaemia. Blood samples from a cohort of patients with newly diagnosed acute leukaemia were obtained before treatment (D-0), 3 and 7 days after treatment (D-3 and D-7)...
January 10, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28070821/evaluation-of-safety-and-effectiveness-of-standardized-antifactor-xa-based-unfractionated-heparin-protocols-in-obese-versus-non-obese-patients
#5
Manuel Isherwood, Michelle L Murphy, Angela L Bingham, Laura A Siemianowski, Krystal Hunter, James M Hollands
Recent data have suggested that standard unfractionated heparin (UFH) protocols may over-anticoagulate obese patients. The goal of this retrospective study was to observe differences in anticoagulation parameters and safety outcomes for standardized antifactor Xa UFH protocols in obese and non-obese populations. Obese patients (N = 148) were identified over a 20-month period and matched to 148 non-obese patients based on age, gender, and admission date. Patients were included if they were on one of three approved UFH protocols [high (target antifactor Xa 0...
January 9, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28070820/development-of-a-new-catheter-prototype-for-laser-thrombolysis-under-guidance-of-optical-coherence-tomography-oct-validation-of-feasibility-and-efficacy-in-a-preclinical-model
#6
Rouven Berndt, Rene Rusch, Lars Hummitzsch, Matthias Lutz, Katharina Heß, Katharina Huenges, Bernd Panholzer, Christoph Otte, Assad Haneya, Georg Lutter, Alexander Schlaefer, Jochen Cremer, Justus Groß
In this feasibility study, a novel catheter prototype for laser thrombolysis under the guidance of optical coherence tomography (OCT) was designed and evaluated in a preclinical model. Human arteries and veins were integrated into a physiological flow model and occluded with thrombi made from the Chandler Loop. There were four experimental groups: placebo, 20 mg alteplase, laser, 20 mg alteplase + laser. The extent of thrombolysis was analyzed by weighing, OCT imaging and relative thrombus size. In the alteplase group, thrombus size decreased to 0...
January 9, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28063132/evaluation-of-role-of-fv-fviii-and-aplas-in-the-pathogenesis-of-apcr-in-fv-leiden-negative-dvt-patients-a-study-in-india
#7
Amit Sharma, Kanwaljeet Singh, Arijit Biswas, Ravi Ranjan, Kamal Kishor, Ravi Kumar, Hareram Pandey, Vineet Kumar Kamal, Renu Saxena
Resistance to APC (APCR) is a very important cause of thrombophilia and most frequently caused by the Leiden mutation. APCR is also seen in the absence of FV Leiden and associated with elevated levels of factor V (FV), factor VIII (FVIII) and antiphospholipid antibodies (APLAs). The aim of this prospective case control study was to find out the frequency and role of FV, FVIII and APLAs in the pathogenesis of APCR in FV Leiden negative deep vein thrombosis (DVT) patients in India. A total 30 APCR positive and FV Leiden negative patients with DVT and similar number of age and sex matched healthy controls were recruited...
January 6, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28054307/etiology-and-complications-of-thrombocytopenia-in-hospitalized-medical-patients
#8
Eric M Fountain, Gowthami M Arepally
To determine incidence, risk factors, hematologic complications, and prognostic significance of thrombocytopenia in the general medicine population, we performed a single-institutional, retrospective study of all adult patients admitted to a general medical ward from January 1st, 2014 to December 31st, 2014 with hospital-acquired thrombocytopenia. Those with moderate thrombocytopenia, defined as a platelet count nadir of <100 × 10^9/L and/or a >50% relative decline, were compared to those with less severe thrombocytopenia...
January 4, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28050755/effect-of-major-gastrointestinal-tract-surgery-on-the-absorption-and-efficacy-of-direct-acting-oral-anticoagulants-doacs
#9
REVIEW
Hakeam A Hakeam, Nasser Al-Sanea
Direct-acting oral anticoagulants (DOACs) have been introduced as alternatives to warfarin for stroke prevention in non-valvular atrial fibrillation and for treatment of venous thromboembolism. Many patients undergoing major gastrointestinal resections or bypass receive anticoagulants for various indications, including the treatment of thrombotic complication of surgery and prevention of visceral vessels events recurrence. DOACs have a wide therapeutic range that allows fixed dosing determined based on studies conducted in healthy subjects with normal absorptive capacity...
January 3, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27990607/family-history-of-venous-thromboembolism-and-mortality-after-venous-thromboembolism-a-swedish-population-based-cohort-study
#10
Bengt Zöller, Mirnabi Pirouzifard, Jan Sundquist, Kristina Sundquist
Studies on whether family history (FH) of venous thromboembolism (VTE) affects long-term mortality after VTE are missing. The aim of this study was to determine whether FH of VTE affects long-term mortality after a first episode of VTE. Using Swedish medical databases, we conducted a 30-year nationwide cohort study of 49,159 adult Swedish born patients included in the multi-generation register (born 1932 or later) with a first-time VTE (1981-2010). Using Cox regression, we assessed mortality Hazard ratios (HRs) with 95% confidence intervals (CIs)...
December 19, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27981490/implications-of-an-inpatient-warfarin-dosing-nomogram-on-safety-outcomes-post-discharge
#11
Nibal Chamoun, C Gabriela Macías, Jennifer L Donovan, Robert Klugman, Joel Gore, Pascale Salameh, Maichi T Tran
Many hospitals have implemented warfarin dosing nomograms to improve patient safety. To our knowledge, no study has assessed the impact inpatient warfarin initiation has in both medical and surgical patients, on safety outcomes post discharge. To evaluate the impact of a suggested institutional nomogram for the initiation of warfarin, the primary endpoint was the incidence of bleeding throughout follow up. Secondary endpoints included the composite of INR changes ≥0.5/day and INR >4. Patients were followed for a period of 2 weeks post-discharge...
December 15, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27981489/influence-of-low-dose-proton-pump-inhibitors-administered-concomitantly-or-separately-on-the-anti-platelet-function-of-clopidogrel
#12
Takahisa Furuta, Mitsushige Sugimoto, Chise Kodaira, Masafumi Nishino, Mihoko Yamade, Takahiro Uotani, Shu Sahara, Hitomi Ichikawa, Takuma Kagami, Moriya Iwaizumi, Yasushi Hamaya, Satoshi Osawa, Ken Sugimoto, Kazuo Umemura
Proton pump inhibitors (PPIs) at low doses can effectively prevent gastrointestinal bleeding due to aspirin and are widely used in Japan for gastroprotection in patients taking anti-platelet agents. We examined the influence of different PPIs at low doses administered concomitantly or separately on anti-platelet functions of clopidogrel. In 41 healthy Japanese volunteers with different CYP2C19 genotypes who took clopidogrel 75 mg in the morning alone, or with omeprazole 10 mg, esomeprazole 10 mg, lansoprazole 15 mg, or rabeprazole 10 mg, either concomitantly in the morning or separately in the evening, we measured the inhibition of platelet aggregation (IPA, %) using VerifyNow P2Y12 assay at 4 h after the last clopidogrel dose on Day 7 of each regimen...
December 15, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27943026/evaluating-the-safety-and-effectiveness-of-venous-thromboembolism-prophylaxis-in-patients-with-sickle-cell-disease
#13
Denise Kelley, Lauren Thornton Jones, Jun Wu, Nicole Bohm
Nearly every component of hemostasis is altered in sickle cell disease (SCD), yet little evidence exists to guide utilization of venous thromboembolism prophylaxis (VTEP) in this population. This retrospective cohort study included 135 adult patients admitted with a diagnosis of SCD vaso-occlusive crisis to the general medicine service at a tertiary care academic medical center from August 1, 2011 to August 1, 2013. If VTEP was discontinued, the medical record was reviewed for suspicion of VTE, hemorrhage, heparin-induced thrombocytopenia (HIT), or other adverse events...
December 10, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27900627/extended-duration-versus-short-duration-pharmacological-thromboprophylaxis-in-acutely-ill-hospitalized-medical-patients-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#14
Aaron Y L Liew, Siavash Piran, John W Eikelboom, James D Douketis
Extended-duration pharmacological thromboprophylaxis, for at least 28 days, is effective for the prevention of symptomatic venous thromboembolism (VTE) in high-risk surgical patients but is of uncertain benefit in hospitalized medical patients. We aimed to evaluate the efficacy and safety of extended-duration thromboprophylaxis in hospitalized medical patients. We conducted a systematic PubMed, Medline and EMBASE literature search until June 2016 and a meta-analysis of randomized controlled trials which compared extended-duration with short-duration thromboprophylaxis in hospitalized medical patients...
November 30, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27896543/vitamin-k-antagonists-relative-strengths-and-weaknesses-vs-direct-oral-anticoagulants-for-stroke-prevention-in-patients-with-atrial-fibrillation
#15
REVIEW
Andreas Zirlik, Christoph Bode
Vitamin K antagonists (VKAs) have been the mainstay of anticoagulation therapy for more than 50 years. VKAs are mainly used for the prevention of stroke in patients with atrial fibrillation (AF) and the treatment and secondary prevention of venous thromboembolism. In the past 5 years, four new agents-the direct factor Xa inhibitors apixaban, edoxaban and rivaroxaban and the direct thrombin inhibitor dabigatran [collectively known as direct oral anticoagulants (DOACs) or non-VKA oral anticoagulants]-have been approved for these and other indications...
November 28, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27878507/the-scope-and-value-of-an-anticoagulation-stewardship-program-at-a-community-teaching-hospital
#16
Maura K Wychowski, Christina I Ruscio, Peter A Kouides, Ronald L Sham
To report the impact of an inpatient anticoagulation stewardship program at a community hospital to promote optimal anticoagulant use. The anticoagulation team (ACT) stewardship program consists of two clinical pharmacists and hematologists to provide oversight of anticoagulants, high cost reversal agents including prothrombin complex concentrate (PCC, Kcentra™), and heparin-induced thrombocytopenia (HIT) management. Intervention data and number of charts reviewed were collected. Average cost avoidance data was applied to ACT interventions to estimate cost savings...
November 22, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27864647/prethrombotic-prothrombotic-thrombophilic-states-hypercoagulable-state-thrombophilia-etc-semantics-should-be-respected-even-in-medical-papers
#17
REVIEW
A Girolami, E Cosi, S Ferrari, A M Lombardi, B Girolami
The study of prothrombotic or thrombophilic states have drawn considerable attention during the past two decades. This was the result of the increasing number of thrombotic events, both arterial and venous reported all over the world but especially in the developed countries. This wealth of studies and papers have not always respected the semantical significance of the various terms used, namely prethrombotic state, hypercoagulable state, thrombophilic or prothrombotic state, thrombophilia, susceptibility to thrombosis and procoagulant state...
November 18, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27848065/impact-of-valvular-heart-disease-on-oral-anticoagulant-therapy-in-non-valvular-atrial-fibrillation-results-from-the-ramses-study
#18
Özcan Başaran, Volkan Dogan, Osman Beton, Mehmet Tekinalp, Ahmet Çağrı Aykan, Ezgi Kalaycıoğlu, Ismail Bolat, Onur Taşar, Özgen Şafak, Macit Kalçık, Mehmet Yaman, Sinan İnci, Bernas Altıntaş, Sedat Kalkan, Cevat Kırma, Murat Biteker
The definition of non-valvular atrial fibrillation (NVAF) is controversial. We aimed to assess the impact of valvular heart disease on stroke prevention strategies in NVAF patients. The RAMSES study was a multicenter and cross-sectional study conducted on NVAF patients (ClinicalTrials.gov identifier NCT02344901). The study population was divided into patients with significant valvular disease (SVD) and non-significant valvular disease (NSVD), whether they had at least one moderate valvular disease or not. Patients with a mechanical prosthetic valve and mitral stenosis were excluded...
November 15, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27844303/acute-apixaban-treatment-of-heparin-induced-thrombocytopenia
#19
LETTER
Guillermo Delgado-García, Roberto Monreal-Robles
No abstract text is available yet for this article.
November 14, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27844302/protein-z-and-atherosclerotic-disease-a-less-close-relationship-than-though
#20
LETTER
José Pardos-Gea
No abstract text is available yet for this article.
November 14, 2016: Journal of Thrombosis and Thrombolysis
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