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Specialty: Hematology
Drug: Aspirin

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Total 122 results found since Jan 2013.

Outcome of overt stroke in sickle cell anaemia, a single institution's experience
Summary Stroke is a traumatic complication in sickle cell anaemia (SCA) that is associated with significant morbidity and a risk of recurrent overt stroke of 2·2–6·4 events per 100 patient‐years. A retrospective study was performed on all paediatric SCA patients diagnosed with a history of overt stroke between 1997 and 2010. A total of 31 children with SCA had new onset overt stroke. The mean age of the active patients (n = 27) was 17·9 years (range 6·8–27·6 years) with a total period of observation of 305 patient‐years. Twenty‐two of 27 (81%) were receiving long term red blood cell transfusions and 16 (...
Source: British Journal of Haematology - February 27, 2014 Category: Hematology Authors: Suvankar Majumdar, Morgan Miller, Majid Khan, Catherine Gordon, Amy Forsythe, Mary G. Smith, Gail Megason, Rathi Iyer Tags: Research Paper Source Type: research

Clopidogrel increases risk of pneumonia compared with aspirin in acute ischemic minor stroke patients
AbstractAntiplatelet agents may increase the risk of infections via suppressing platelet-mediated immune response. Here we assessed the contribution of clopidogrel versus aspirin to the development of pneumonia during an acute ischemic stroke admission. A retrospective cohort study was conducted of acute ischemic stroke patients who were admitted to our hospital from 2015 to 2018. Included patients received uninterrupted clopidogrel or aspirin therapy and did not take other antiplatelet agents throughout their stay. The interest outcome was development of pneumonia after stroke. Conditional logistic regression model after ...
Source: Journal of Thrombosis and Thrombolysis - October 9, 2020 Category: Hematology Source Type: research

Clopidogrel and aspirin after ischemic stroke or transient ischemic attack: an updated systematic review and meta-analysis of randomized clinical trials
Conclusions: Among patients who presented with ischemic stroke/TIA, short-course clopidog rel plus aspirin immediately following the index event appears to be more effective than and as safe as monotherapy for secondary stroke prevention.
Source: Journal of Thrombosis and Thrombolysis - December 3, 2018 Category: Hematology Source Type: research

Edoxaban versus placebo, aspirin, or aspirin plus clopidogrel for stroke prevention in atrial fibrillation. An indirect comparison analysis.
In conclusion, edoxaban is likely to provide even better protection from stroke and ICH than placebo, aspirin alone, or aspirin plus clopidogrel in both clinical trial populations and unselected community populations. Both edoxaban doses would also bring a positive NCB compared to anti-platelet drugs or placebo/non-treatment based on 'real world' data. PMID: 26062437 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - June 11, 2015 Category: Hematology Authors: Blann AD, Skjøth F, Rasmussen LH, Larsen TB, Lip GY Tags: Thromb Haemost Source Type: research

Beyond Stroke Prevention in Atrial Fibrillation: Exploring Further Unmet Needs with Rivaroxaban.
This article provides an update on three randomized controlled trials of rivaroxaban, a direct, oral factor Xa inhibitor, that are complete or are ongoing, in these unmet areas of stroke prevention: oPen-label, randomized, controlled, multicentre study explorIng twO treatmeNt stratEgiEs of Rivaroxaban and a dose-adjusted oral vitamin K antagonist treatment strategy in patients with Atrial Fibrillation who undergo Percutaneous Coronary Intervention (PIONEER AF-PCI) trial; the New Approach riVaroxaban Inhibition of factor Xa in a Global trial vs Aspirin to prevenT Embolism in Embolic Stroke of Undetermined Source (NAVIGATE E...
Source: Thrombosis and Haemostasis - March 22, 2018 Category: Hematology Authors: Gibson CM, Hankey GJ, Nafee T, Welsh RC Tags: Thromb Haemost Source Type: research

Spotlight on unmet needs in stroke prevention: The PIONEER AF-PCI, NAVIGATE ESUS and GALILEO trials.
This article focuses on three randomised controlled trials (RCTs) that are investigating the utility of rivaroxaban, a direct, oral, factor Xa inhibitor, in additional areas of stroke prevention where data for anticoagulants are lacking: oPen-label, randomized, controlled, multicentre study explorIng twO treatmeNt stratEgiEs of Rivaroxaban and a dose-adjusted oral vitamin K antagonist treatment (PIONEER AF-PCI); New Approach riVaroxoban Inhibition of factor Xa in a Global trial vs Aspirin to prevenT Embolism in Embolic Stroke of Undetermined Source (NAVIGATE ESUS); and Global study comparing a rivAroxaban-based antithrombo...
Source: Thrombosis and Haemostasis - September 13, 2016 Category: Hematology Authors: Hemmrich M, Peterson ED, Thomitzek K, Weitz JI Tags: Thromb Haemost Source Type: research

“Blueprinting” thrombogenicity and antithrombotic drug response at the bedside in patients presenting emergently with symptoms of acute stroke
AbstractEarly assessment of thrombogenicity and antithrombotic drug effects may be important for therapeutic decision making in patients presenting with acute stroke. In this prospective, single center, pilot study, a bedside thrombelastography assay (TEG6s) was used to measure thrombogenicity and antithrombotic drug response in serial patients presenting emergently with symptoms of acute stroke (n  = 90). TEG6s measures were compared against diagnosis obtained by NIH Stroke Scale/Score and imaging. Acute ischemic stroke (AIS) was diagnosed in 30 patients, intracerebral hemorrhage (ICH) in 19, transient ischemic attack...
Source: Journal of Thrombosis and Thrombolysis - January 23, 2019 Category: Hematology Source Type: research

Impact of clopidogrel and potent P2Y 12 -inhibitors on mortality and stroke in patients with acute coronary syndrome or undergoing percutaneous coronary intervention. A systematic review and meta-analysis.
Abstract Administration of a P2Y 12 -receptor antagonist in addition to aspirin is mandatory in patients with acute coronary syndromes (ACS) or undergoing percutaneous coronary intervention (PCI) to reduce the occurrence of thrombotic events; however, their impact on mortality and stroke is unclear. We aimed to evaluate the influence of moderate (clopidogrel) or potent (prasugrel/ticagrelor) P2Y 12 -receptor inhibition on major cardiovascular outcomes among patients with ACS or undergoing PCI. Systematic literature search was performed to find randomised, controlled clinical trials comparing the clinical impact o...
Source: Thrombosis and Haemostasis - January 8, 2013 Category: Hematology Authors: Aradi D, Komócsi A, Vorobcsuk A, Serebruany VL Tags: Thromb Haemost Source Type: research

Aspirin nonresponders in patients with ischaemic stroke
From previous studies, the prevalence of aspirin nonresponders is 5.5–45% in patients with various cardiovascular diseases. Those who have aspirin nonresponders have a greater risk of clinically cardiovascular events. The purpose of the study was to look for the prevalence, associated factors and the outcomes of aspirin nonresponders among patients with ischaemic stroke. Patients with ischaemic stroke who were treated during January 2011–August 2011 were included. Urine 11-dehydro-thromboxane B2 (dTXB2) was measured to determine the response to aspirin in patients. The demographics and vascular risk factors were compar...
Source: Blood Coagulation and Fibrinolysis - May 10, 2013 Category: Hematology Tags: Original Articles Source Type: research

The clinical utility of Multiplate analyser measurement in platelet function testing following stroke and transient ischaemic attack
ConclusionThe Multiplate device gives reproducible, precise results in volunteers and stroke/TIA patients.This article is protected by copyright. All rights reserved.
Source: European Journal of Haematology - June 30, 2014 Category: Hematology Authors: Gurdeep S. Mannu, Alistair Macartney, Jonathan R. A. Lambert, Joao H. Bettencourt‐Silva, Mark Lawn, Hamish Lyall, Anthony Kneale Metcalf, John F Potter, John Wood, Allan Clark, Trevor Baglin, Phyo Kyaw Myint, Kristian M. Bowles Tags: Original Article Source Type: research

Clopidogrel use and smoking cessation result in lower coated-platelet levels after stroke.
Authors: Kirkpatrick AC, Vincent AS, Dale GL, Prodan CI Abstract Coated-platelets are a subset of highly procoagulant platelets elevated in patients with non-lacunar ischemic stroke and associated with stroke recurrence. Cross-sectional studies in controls have shown that smoking is associated with higher coated-platelet levels while chronic use of serotonin reuptake inhibitors (SSRIs), statins or aspirin is associated with lower coated-platelet levels. We now investigate if initiation of treatment with SSRIs, statins, clopidogrel, aspirin or oral anticoagulants and smoking cessation impacts coated-platelet levels ...
Source: Platelets - May 4, 2019 Category: Hematology Tags: Platelets Source Type: research

Novel oral anticoagulants in secondary prevention of stroke
In patients with atrial fibrillation (AF) oral anticoagulation with vitamin-K antagonists (warfarin, phenprocoumon) is effective both for primary and secondary stroke prevention yielding a 60–70% relative reduction in stroke risk compared with placebo, as well as a mortality reduction of 26 percent. Vitamin-K antagonists have a number of well documented shortcomings. Recently the results of randomised trials for three new oral anticoagulants that do not exhibit the limitations of vitamin-K antagonists have been published. These include direct factor Xa inhibitors (rivaroxaban and apixaban) and a direct thrombin inhibitor...
Source: Best Practice and Research. Clinical Haematology - June 1, 2013 Category: Hematology Authors: H.C. Diener, J.D. Easton, G.J. Hankey, R.G. Hart Source Type: research

Evidence for the Prevention and Treatment of Stroke in Dialysis Patients
Abstract The risks of both ischemic and hemorrhagic stroke are particularly high in dialysis patients of any age and outcomes are poor. It is therefore important to identify strategies that safely minimize stroke risk in this population. Observational studies have been unable to clarify the relative importance of traditional stroke risk factors such as blood pressure and cholesterol in those on dialysis, and are affected by biases that usually make them an inappropriate source of data on which to base therapeutic decisions. Well‐conducted randomized trials are not susceptible to such biases and can reliably investigate t...
Source: Seminars In Dialysis - May 1, 2014 Category: Hematology Authors: William Herrington, Richard Haynes, Natalie Staplin, Jonathan Emberson, Colin Baigent, Martin Landray Tags: Review Source Type: research

Platelet function testing in transient ischaemic attack and ischaemic stroke: A comprehensive systematic review of the literature.
Authors: Lim ST, Coughlan CA, Murphy SJ, Fernandez-Cadenas I, Montaner J, Thijs V, Marquardt L, McCabe DJ Abstract The majority of patients with ischaemic cerebrovascular disease (CVD) are not protected from further vascular events with antiplatelet therapy. Measurement of inhibition of platelet function ex vivo on antiplatelet therapy, using laboratory tests that correlate with the clinical effectiveness of these agents, would potentially enable physicians to tailor antiplatelet therapy to suit individuals. A systematic review of the literature was performed to collate all available data on ex vivo platelet functi...
Source: Platelets - February 14, 2016 Category: Hematology Tags: Platelets Source Type: research