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Condition: Thrombosis
Nutrition: Vitamin K

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Total 637 results found since Jan 2013.

Effectiveness and Safety of Non-Vitamin K Oral Anticoagulants in Comparison to Phenprocoumon: Data from 61,000 Patients with Atrial Fibrillation.
Abstract All pivotal trials have evaluated non-vitamin K oral antagonists (NOACs) against warfarin. However, in some regions of the world, phenprocoumon is the most widely used vitamin K antagonist (VKA). There is little evidence documenting effectiveness and safety of NOACs compared with phenprocoumon in atrial fibrillation (AF). A retrospective cohort study using a German claims database was conducted to assess effectiveness (stroke, systemic embolism [SE]) and safety (bleeding leading to hospitalization) during therapy with NOACs and phenprocoumon in 61,205 AF patients. Hazard ratios (HRs) for effectiveness and...
Source: Thrombosis and Haemostasis - January 22, 2018 Category: Hematology Authors: Hohnloser SH, Basic E, Hohmann C, Nabauer M Tags: Thromb Haemost Source Type: research

Oral anti-Xa anticoagulation after Trans-Aortic Valve Implantation for Aortic Stenosis: The randomized ATLANTIS trial
Conclusions ATLANTIS tests the superiority of an apixaban-based strategy versus the recommended standard of care strategy to reduce the risk of post-TAVR thromboembolic and bleeding complications in an all comer population.
Source: American Heart Journal - March 10, 2018 Category: Cardiology Source Type: research

An Open-label, 2 x 2 Factorial, Randomized Controlled Trial to Evaluate the Safety of Apixaban vs. Vitamin K Antagonist and Aspirin vs. Placebo in Patients with Atrial Fibrillation and Acute Coronary Syndrome and/or Percutaneous Coronary Intervention: Rationale and Design of the AUGUSTUS Trial
Publication date: Available online 9 March 2018 Source:American Heart Journal Author(s): Renato D. Lopes, Amit N. Vora, Danny Liaw, Christopher B. Granger, Harald Darius, Shaun G. Goodman, Roxana Mehran, Stephan Windecker, John H. Alexander The optimal antithrombotic strategy for patients with atrial fibrillation (AF) who develop acute coronary syndrome (ACS) and/or the need for percutaneous coronary intervention (PCI) is uncertain. The risk of bleeding is a major concern when oral anticoagulation is required to prevent stroke and concomitant therapy with antiplatelet agents is required to minimize recurrent ischemic even...
Source: American Heart Journal - March 10, 2018 Category: Cardiology Source Type: research

Novel oral anticoagulants in chronic kidney disease: ready for prime time?
Purpose of review Patients with chronic kidney disease (CKD) are at increased risk of atrial fibrillation, stroke, and bleeding posing unique clinical challenges. Novel oral anticoagulants (NOACs) including dabigatran, rivaroxaban, and apixaban have become recognized as alternative therapy to Vitamin K Antagonists (VKA) regarding the prevention of venous thromboembolism (VTE) and reduce the risk of stroke in atrial fibrillation. However, the understanding of NOACs in CKD is still underdeveloped. This review summarizes recent literature on the efficacy and safety of NOACs in patients with CKD. Recent findings Studies f...
Source: Current Opinion in Nephrology and Hypertension - April 5, 2018 Category: Urology & Nephrology Tags: EPIDEMIOLOGY AND PREVENTION: Edited by Navdeep Tangri Source Type: research

An open-Label, 2 × 2 factorial, randomized controlled trial to evaluate the safety of apixaban vs. vitamin K antagonist and aspirin vs. placebo in patients with atrial fibrillation and acute coronary syndrome and/or percutaneous coronary intervention: Rationale and design of the AUGUSTUS trial
Publication date: June 2018 Source:American Heart Journal, Volume 200 Author(s): Renato D. Lopes, Amit N. Vora, Danny Liaw, Christopher B. Granger, Harald Darius, Shaun G. Goodman, Roxana Mehran, Stephan Windecker, John H. Alexander Background The optimal antithrombotic strategy for patients with atrial fibrillation (AF) who develop acute coronary syndrome (ACS) and/or the need for percutaneous coronary intervention (PCI) is uncertain. The risk of bleeding is a major concern when oral anticoagulation is required to prevent stroke, and concomitant therapy with antiplatelet agents is required to minimize recurrent ischemic ...
Source: American Heart Journal - April 6, 2018 Category: Cardiology Source Type: research

Can an anticoagulant reduce brain hemorrhage: Invited comment on “Dabigatran reduces endothelial permeability through inhibition of thrombin-induced cytoskeleton reorganization”
During studies of anti-coagulants to prevent cardioembolic stroke, startling data emerged that patients treated with novel oral anti-coagulants (NOACs) appeared to suffer less brain hemorrhage than patients treated with traditional, vitamin-K depleting anticoagulants [1, 2]. That NOACs reduced the bleeding risk did not fit accepted dogma: clinicians imagine that hemorrhage occurs during and following ischemic stroke as the brain undergoes necrosis. In the presence of anti-coagulation, such necrotic bleeding ought to be augmented.
Source: Thrombosis Research - June 11, 2018 Category: Hematology Authors: Patrick D. Lyden Tags: Editorial Source Type: research

EdoxabaN Versus standard of care and theIr effectS on clinical outcomes in pAtients havinG undergonE Transcatheter Aortic Valve Implantation in Atrial Fibrillation—Rationale and design of the ENVISAGE-TAVI AF trial
Publication date: November 2018Source: American Heart Journal, Volume 205Author(s): Nicolas M. Van Mieghem, Martin Unverdorben, Marco Valgimigli, Roxana Mehran, Eric Boersma, Usman Baber, Christian Hengstenberg, Minggao Shi, Cathy Chen, Shigeru Saito, Roland Veltkamp, Pascal Vranckx, George D. DangasTranscatheter aortic valve implantation, also called transcatheter aortic valve replacement (TAVR), is the treatment of choice for patients with severe aortic stenosis and intermediate to high operative risk. A significant portion of TAVR patients have atrial fibrillation (AF) requiring chronic oral anticoagulation. In moderate...
Source: American Heart Journal - August 30, 2018 Category: Cardiology Source Type: research

Rivaroxaban versus Warfarin in Patients with Mechanical Heart Valve: Rationale and Design of the RIWA Study
DiscussionWarfarin and similar VKAs are standard therapy for patients with an MHV. Even with the appropriate use of therapy, the incidence of thromboembolic events is high at 1 –4% per year. Furthermore, bleeding risk is significant, ranging from 2 to 9% per year. The new frontier to be overcome in relation to use of the new oral anticoagulants is undoubtedly in patients with MHV. A significant portion of people with MHV worldwide will benefit if noninferiority of these new agents is confirmed.Trial RegistrationClinicalTrials.gov identifier:NCT03566303. Recruitment Status: Recruiting. First Posted: 25 June 2018. Last Upd...
Source: Drugs in R&D - October 6, 2018 Category: Drugs & Pharmacology Source Type: research

Anticoagulation in Atherosclerotic Disease.
Abstract The prevention of atherothrombotic events is an essential therapeutic goal in the treatment of patients with arteriosclerotic diseases. After plaque rupture, a rapidly growing thrombus can lead to acute vascular occlusion and thus heart attack, stroke or limb ischaemia. The acute therapy combines anticoagulation and platelet inhibition. However, the only available therapy so far in the primary and secondary prevention of stable patients is the platelet inhibitors aspirin and clopidogrel. Despite the use of antiplatelet therapies, including aspirin and P2Y12-receptor antagonists, some patients with artery ...
Source: Hamostaseologie - October 17, 2018 Category: Hematology Authors: Al Said S, Bode C, Duerschmied D Tags: Hamostaseologie Source Type: research

Thrombotic and Bleeding Outcomes Following Perioperative Interruption of Direct Oral Anticoagulants and Vitamin K Antagonists in Patients with Non-Valvular Atrial Fibrillation - a Comparative Analysis
Conclusions: The perioperative interruption of warfarin was associated with a higher 30-day rate of major bleeding as compared with DOAC interruption. Re-initiation of warfarin should be done judiciously following high bleeding risk procedures, and close INR monitoring may be warranted.DisclosuresShaw: Portola Pharmaceuticals: Research Funding. Douketis: Janssen: Consultancy; Pfizer: Other: Advisory Board; Boehringer-Ingelheim: Consultancy, Other: Advisory Board, Research Funding; Portola: Other: Advisory Board; The Medicines Company: Other: Advisory Board; Daiichi-Sankyo: Other: Advisory Board; Biotie: Other: Advisory Boa...
Source: Blood - November 21, 2018 Category: Hematology Authors: Shaw, J. R., Zhang, T., Le Gal, G., Douketis, J., Carrier, M. Tags: 332. Antithrombotic Therapy: Poster I Source Type: research

Efficacy and Safety of Prothrombin Complex Concentrate (PCC) for Direct Oral Anticoagulant Reversal: A Single Institutional Experience
ConclusionIn this cohort, 80% of pts demonstrated clinical stability/improvement of hemorrhage. All pts were able to undergo surgical procedures; however 17% required additional FFP to achieve hemostasis. Thromboembolism occurred in 12% of patients. No deaths could definitely be attributed to 4PCC; however, 30% of deaths could be attributable to the underlying hemorrhagic episode.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Sridharan, M., Ou, N. N., Oyen, L. J., Ashrani, A. A., McBane, R. D., Pruthi, R. K. Tags: 332. Antithrombotic Therapy: Poster II Source Type: research

A Study of Haemostatic Parameters in Patients with Philadelphia-Negative Myeloproliferative Neoplasms. Correlation with, Clinical, Laboratory, Molecular, and Treatment Characteristics
DiscussionGlobal assays such as thromboelastography are more useful than conventional hemostatic laboratory tests in depicting the hypercoagulable state in MPN. They may be useful in combination with other parameters such as the mutational status in identifying patients with MPN at higher risk for thrombosis and guide clinicians for the type of treatment (both cytoreductive and anticoagulants). Tests of platelet function assessment may help the clinicians adjust the type and dose of antiplatelet therapy.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Giannakopoulou, N., Politou, M., Diamantopoulos, P. T., Korakakis, D., Efstathopoulou, M., Kassi, T., Kontandreopoulou, C.-N., Zoi, K., Giannopoulos, A., Dimou, M., Panayiotidis, P., Viniou, N.-A. Tags: 634. Myeloproliferative Syndromes: Clinical: Poster III Source Type: research

Analysis of the Safety Profile of Commonly Used Procoagulants Using the FDA Adverse Event Reporting System
Conclusions:Our analysis found that the rate of reports of death and MI were higher with rFVIIa than other procoagulants, while reports of ischemic stroke and intracranial hemorrhage were more common with PCCs. rFVIIa has been associated with cardiovascular before, a finding reiterated by our study. There are notable limitations of this type of analysis, including the reliance on the accurate reporting of adverse events to the FDA, possibility of duplications of reports in the FAERS database, and the importance of not conflating correlation with causation as it relates to these events. The association between rFVIIa and in...
Source: Blood - November 21, 2018 Category: Hematology Authors: Deloughery, E. P., Shatzel, J. J. Tags: 901. Health Services Research-Non-Malignant Conditions: Poster III Source Type: research

Quality of Anticoagulation and Treatment Satisfaction in Patients with Non-Valvular Atrial Fibrillation Treated with Vitamin K Antagonist: Result from the KORean Atrial Fibrillation Investigation II.
Conclusion: INR was poorly controlled in Korean NVAF patients treated with VKA. VKA users also showed low treatment satisfaction. PMID: 30505257 [PubMed - in process]
Source: Journal of Korean Medical Science - December 8, 2018 Category: Biomedical Science Tags: J Korean Med Sci Source Type: research

Oral Anticoagulants With Dual Antiplatelet Therapy Versus Clopidogrel in Patients After Percutaneous Coronary Intervention: A Meta-Analysis
Conclusions: In patients who are on OAC with vitamin K antagonist and underwent percutaneous coronary intervention, no significant differences were found in mortality, ischemic, and hemorrhagic complications between the patients treated with TT and DT. Thus, tailored treatment based on individual thromboembolic and bleeding risk might be the most reasonable approach in these patients.
Source: American Journal of Therapeutics - December 29, 2018 Category: Drugs & Pharmacology Tags: Reviews Source Type: research