Apixaban enhances endogenous fibrinolysis in patients with atrial fibrillation

AbstractAimsApproximately 20% of ischaemic stroke patients exhibit spontaneous arterial recanalization, attributable to endogenous fibrinolysis, which strongly relates to improved functional outcome. The impact of oral anticoagulants on endogenous fibrinolysis is unknown. Our aim was to test the hypothesis that apixaban enhances endogenous fibrinolysis in non-valvular atrial fibrillation (NVAF).Methods and resultsIn a prospective cross-sectional analysis, we compared endogenous fibrinolysis in NVAF patients (n = 180) taking aspirin, warfarin, or apixaban. In a prospective longitudinal study, patients were tested before and after apixaban (n = 80). Endogenous fibrinolysis was assessed using the Global Thrombosis Test (GTT) and thromboelastography (TEG). Endogenous fibrinolysis [measured by GTT lysis time (LT)] was shorter on apixaban compared with warfarin or aspirin [median 1850 (IQR 1591–2300) vs. 2758 (2014–3502) vs. 2135 (1 752–2463) s,P  
Source: Europace - Category: Cardiology Source Type: research

Related Links:

ConclusionsIn AF patients who survived an ICH, restarting OAC was not associated with a greater risk of recurrent ICH. Evidence from randomized controlled studies is needed to further clarify the clinical benefit of restarting OAC in this high-risk population. Further evaluation of which individuals benefit from restarting OAC is also needed to provide more clinical guidance.
Source: American Journal of Cardiovascular Drugs - Category: Cardiology Source Type: research
CONCLUSIONS: Compared to warfarin, NOACs were associated with a significantly lower risk of adverse events, with heterogeneity in treatment effects among different age strata. Overall, the clear safety signal in favor of NOACs over warfarin was evident irrespective of age strata, being most marked in the most elderly. PMID: 31809694 [PubMed - as supplied by publisher]
Source: Chest - Category: Respiratory Medicine Authors: Tags: Chest Source Type: research
AbstractThe best strategy in atrial fibrillation (AF) after  >  12 months after an acute coronary syndrome or in patients with chronic coronary syndrome without an indication for interventional revascularization remains unclear. European guidelines generally recommend therapy with oral anticoagulation (OAC) alone, whereas North American guidelines advise com bination therapy consisting of OAC plus antiplatelet therapy in some patients. We performed a meta-analysis of available trials comparing these treatment strategies. The primary endpoint was major adverse cardiac events (MACE), secondary endp...
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
AbstractPurpose of reviewCryptogenic stroke describes a subset of ischemic stroke for which no cause can be found despite a structured investigation. There are a number of putative mechanisms of cryptogenic ischemic stroke including a covert structural cardiac lesion, paroxysmal atrial fibrillation, hypercoagulable state or undiagnosed malignancy. Because many of these proposed mechanisms are embolic – and based on studies of thrombus history showing commonalities between thrombus composition between cardioembolic and cryptogenic strokes – the concept of embolic stroke of undetermined source (ESUS) (Hart et al....
Source: Current Treatment Options in Cardiovascular Medicine - Category: Cardiology Source Type: research
AbstractSeveral studies have explored the use of NOACs compared with vitamin K antagonists (VKAs) in patients with hypertrophic cardiomyopathy (HCM) and atrial fibrillation (AF); and therefore, we aimed to compare the efficacy and safety outcomes of NOACs with VKAs in this population. We systematically searched the PubMed and Embase databases until August 5, 2019 for studies that compared the effect of NOACs with VKAs in patients with HCM and AF. The risk ratios (RRs) with 95% confidence intervals (CIs) were pooled using a random-effects model. A total of four observational studies were included in this meta-analysis. Over...
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
CONCLUSION:  In AF patients with malignancy, NOACs appear at least as effective as VKAs in preventing thrombotic events and reduce intracranial bleeding. NOACs may represent a valid and more practical alternative to VKAs in this setting of high-risk patients. PMID: 31785599 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - Category: Hematology Authors: Tags: Thromb Haemost Source Type: research
In conclusion, recent evidence provides compelling evidence in support of the link between venous and arterial thrombosis. Future studies are needed to clarify the nature of this association, to assess its extent, and to evaluate its implications for clinical practice.
Source: Internal and Emergency Medicine - Category: Emergency Medicine Source Type: research
amel H, Kirchhof P, Korompoki E, Krieger DW, Lip GYH, Løchen ML, Mairesse GH, Montaner J, Neubeck L, Ntaios G, Piccini JP, Potpara TS, Quinn TJ, Reiffel JA, Ribeiro ALP, Rienstra M, Rosenqvist M, Sakis T, Sinner MF, Svendsen JH, Van Gelder IC, Wachter R, Wijeratne T, Yan B Abstract Cardiac thromboembolism attributed to atrial fibrillation (AF) is responsible for up to one-third of ischemic strokes. Stroke may be the first manifestation of previously undetected AF. Given the efficacy of oral anticoagulants in preventing AF-related ischemic strokes, strategies of searching for AF after a stroke using ECG moni...
Source: Circulation - Category: Cardiology Authors: Tags: Circulation Source Type: research
This article is protected by copyright. All rights reserved
Source: Pacing and Clinical Electrophysiology : PACE - Category: Cardiology Authors: Tags: REVIEW Source Type: research
AbstractPatients with atrial fibrillation (AF) who suffer an acute ischemic stroke are at risk for both hemorrhagic transformation and recurrent ischemic stroke in the acute post ‐stroke period. Oral anticoagulants are recommended for secondary stroke prevention in patients with AF. The optimal time to initiate anticoagulant therapy after acute ischemic stroke in patients with AF is uncertain. There is concern that early initiation increases the risk of hemorrhagic transfo rmation, whereas delayed initiation leaves the patient at risk for recurrent ischemic stroke. In this article, we provide a review of the risk of hemo...
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: REVIEW OF THERAPEUTICS Source Type: research
More News: Aspirin | Atrial Fibrillation | Cardiology | Coumadin | Ischemic Stroke | Stroke | Study | Thrombosis | Warfarin