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Subclinical leaflet thrombosis in surgical and transcatheter bioprosthetic aortic valves: an observational study
The objective of this study was to report the prevalence of subclinical leaflet thrombosis in surgical and transcatheter aortic valves and the effect of novel oral anticoagulants (NOACs) on the subclinical leaflet thrombosis and subsequent valve haemodynamics and clinical outcomes on the basis of two registries of patients who had CT imaging done after TAVR or SAVR. Methods Patients enrolled between Dec 22, 2014, and Jan 18, 2017, in the RESOLVE registry, and between June 2, 2014, and Sept 28, 2016, in the SAVORY registry, had CT imaging done with a dedicated four-dimensional volume-rendered imaging protocol at varying int...
Source: The Lancet - March 18, 2017 Category: Journals (General) Source Type: research

Edoxaban versus enoxaparin –warfarin in patients undergoing cardioversion of atrial fibrillation (ENSURE-AF): a randomised, open-label, phase 3b trial
Publication date: Available online 30 August 2016 Source:The Lancet Author(s): Andreas Goette, Jose L Merino, Michael D Ezekowitz, Dmitry Zamoryakhin, Michael Melino, James Jin, Michele F Mercuri, Michael A Grosso, Victor Fernandez, Naab Al-Saady, Natalya Pelekh, Bela Merkely, Sergey Zenin, Mykola Kushnir, Jindrich Spinar, Valeriy Batushkin, Joris R de Groot, Gregory Y H Lip Background Edoxaban, an oral factor Xa inhibitor, is non-inferior for prevention of stroke and systemic embolism in patients with atrial fibrillation and is associated with less bleeding than well controlled enoxaparin–warfarin therapy. Few safety d...
Source: The Lancet - August 30, 2016 Category: Journals (General) Source Type: research

The novel biomarker-based ABC (age, biomarkers, clinical history)-bleeding risk score for patients with atrial fibrillation: a derivation and validation study
Publication date: Available online 4 April 2016 Source:The Lancet Author(s): Ziad Hijazi, Jonas Oldgren, Johan Lindbäck, John H Alexander, Stuart J Connolly, John W Eikelboom, Michael D Ezekowitz, Claes Held, Elaine M Hylek, Renato D Lopes, Agneta Siegbahn, Salim Yusuf, Christopher B Granger, Lars Wallentin Background The benefit of oral anticoagulation in atrial fibrillation is based on a balance between reduction in ischaemic stroke and increase in major bleeding. We aimed to develop and validate a new biomarker-based risk score to improve the prognostication of major bleeding in patients with atrial fib...
Source: The Lancet - April 4, 2016 Category: Journals (General) Source Type: research

Oral anticoagulants for stroke prevention in atrial fibrillation: current status, special situations, and unmet needs
Publication date: Available online 14 March 2015 Source:The Lancet Author(s): Freek W A Verheugt , Christopher B Granger In patients with non-valvular atrial fibrillation, oral anticoagulation with vitamin K antagonists reduces the risk of stroke by more than 60%. But vitamin K antagonists have limitations, including causing serious bleeding such as intracranial haemorrhage and the need for anticoagulation monitoring. In part related to these limitations, they are used in only about half of patients who should be treated according to guideline recommendations. In the past decade, oral agents have been developed that dire...
Source: The Lancet - March 14, 2015 Category: Journals (General) Source Type: research

Association between edoxaban dose, concentration, anti-Factor Xa activity, and outcomes: an analysis of data from the randomised, double-blind ENGAGE AF-TIMI 48 trial
Publication date: Available online 11 March 2015 Source:The Lancet Author(s): Christian T Ruff , Robert P Giugliano , Eugene Braunwald , David A Morrow , Sabina A Murphy , Julia F Kuder , Naveen Deenadayalu , Petr Jarolim , Joshua Betcher , Minggao Shi , Karen Brown , Indravadan Patel , Michele Mercuri , Elliott M Antman Background New oral anticoagulants for stroke prevention in atrial fibrillation were developed to be given in fixed doses without the need for the routine monitoring that has hindered usage and acceptance of vitamin K antagonists. A concern has emerged, however, that measurement of drug concentration or ...
Source: The Lancet - March 12, 2015 Category: Journals (General) Source Type: research