Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?

Introduction: Antiplatelet therapy is routinely prescribed early after ischaemic stroke. Many patients will already be taking antiplatelet therapy and it is unknown whether these patients should continue the same antiplatelet treatment or switch to a different regimen. Methods:We selected patients...

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Main Authors: Mazlan-Kepli, Wardati, MacIsaac, Rachael L., Walters, Matthew, Bath, Philip M.W., Dawson, Jesse
Format: Article
Published: SAGE Publications 2017
Subjects:
Online Access:https://eprints.nottingham.ac.uk/44938/
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author Mazlan-Kepli, Wardati
MacIsaac, Rachael L.
Walters, Matthew
Bath, Philip M.W.
Dawson, Jesse
author_facet Mazlan-Kepli, Wardati
MacIsaac, Rachael L.
Walters, Matthew
Bath, Philip M.W.
Dawson, Jesse
author_sort Mazlan-Kepli, Wardati
building Nottingham Research Data Repository
collection Online Access
description Introduction: Antiplatelet therapy is routinely prescribed early after ischaemic stroke. Many patients will already be taking antiplatelet therapy and it is unknown whether these patients should continue the same antiplatelet treatment or switch to a different regimen. Methods:We selected patients with ischaemic stroke from the Virtual International Stroke Trials Archive database who were prescribed antiplatelets both before and after their stroke and who had detailed records of adverse events after stroke. We compared patients who changed to a new antiplatelet regimen after their stroke to those who continued the same regimen. The primary outcome was recurrent ischaemic stroke within 90 days after their index stroke and the secondary outcome was intracranial haemorrhage (ICH) or extracranial haemorrhage (ECH). We used logistic regression analysis and adjusted for age and baseline NIHSS. Results: A total of 1129 participants were included. Of these, 538 subjects changed antiplatelet regimen post stroke and 591 continued the same regimen. A recurrent ischaemic event occurred in 4.1% of subjects who changed regimen and 4.3% who continued unchanged (adjusted OR¼0.93; 95% CI 0.54–1.75, p¼0.929). The incidence of ICH and ECH within the first 90 days was similar in both groups (2.4% vs. 2.6% (adjusted OR¼1.02; 95% CI 0.48–2.18, p¼0.955) and 4.7% vs. 2.9% (adjusted OR¼1.82; 95% CI 0.96–3.43, p¼0.065), respectively). Discussion: The analysis was performed using a non-randomised registry data. Conclusion: In patients who suffer ischaemic stroke whilst taking antiplatelets, a change in antiplatelet regimen was not associated with an altered risk of early recurrent ischaemic stroke rate or bleeding. However, the results must be interpreted in view of the low event rates.
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spelling nottingham-449382020-05-04T18:32:39Z https://eprints.nottingham.ac.uk/44938/ Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy? Mazlan-Kepli, Wardati MacIsaac, Rachael L. Walters, Matthew Bath, Philip M.W. Dawson, Jesse Introduction: Antiplatelet therapy is routinely prescribed early after ischaemic stroke. Many patients will already be taking antiplatelet therapy and it is unknown whether these patients should continue the same antiplatelet treatment or switch to a different regimen. Methods:We selected patients with ischaemic stroke from the Virtual International Stroke Trials Archive database who were prescribed antiplatelets both before and after their stroke and who had detailed records of adverse events after stroke. We compared patients who changed to a new antiplatelet regimen after their stroke to those who continued the same regimen. The primary outcome was recurrent ischaemic stroke within 90 days after their index stroke and the secondary outcome was intracranial haemorrhage (ICH) or extracranial haemorrhage (ECH). We used logistic regression analysis and adjusted for age and baseline NIHSS. Results: A total of 1129 participants were included. Of these, 538 subjects changed antiplatelet regimen post stroke and 591 continued the same regimen. A recurrent ischaemic event occurred in 4.1% of subjects who changed regimen and 4.3% who continued unchanged (adjusted OR¼0.93; 95% CI 0.54–1.75, p¼0.929). The incidence of ICH and ECH within the first 90 days was similar in both groups (2.4% vs. 2.6% (adjusted OR¼1.02; 95% CI 0.48–2.18, p¼0.955) and 4.7% vs. 2.9% (adjusted OR¼1.82; 95% CI 0.96–3.43, p¼0.065), respectively). Discussion: The analysis was performed using a non-randomised registry data. Conclusion: In patients who suffer ischaemic stroke whilst taking antiplatelets, a change in antiplatelet regimen was not associated with an altered risk of early recurrent ischaemic stroke rate or bleeding. However, the results must be interpreted in view of the low event rates. SAGE Publications 2017-03-01 Article PeerReviewed Mazlan-Kepli, Wardati, MacIsaac, Rachael L., Walters, Matthew, Bath, Philip M.W. and Dawson, Jesse (2017) Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy? European Stroke Journal, 2 (1). pp. 31-36. ISSN 2396-9873 Antiplatelet recurrent ischaemic stroke intracranial haemorrhage outcomes thrombolysis prior antiplatelet http://journals.sagepub.com/doi/10.1177/2396987316678728 doi:10.1177/2396987316678728 doi:10.1177/2396987316678728
spellingShingle Antiplatelet
recurrent ischaemic stroke
intracranial haemorrhage
outcomes
thrombolysis
prior antiplatelet
Mazlan-Kepli, Wardati
MacIsaac, Rachael L.
Walters, Matthew
Bath, Philip M.W.
Dawson, Jesse
Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title_full Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title_fullStr Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title_full_unstemmed Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title_short Antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
title_sort antiplatelet therapy following ischaemic stroke: continue or change pre-existing therapy?
topic Antiplatelet
recurrent ischaemic stroke
intracranial haemorrhage
outcomes
thrombolysis
prior antiplatelet
url https://eprints.nottingham.ac.uk/44938/
https://eprints.nottingham.ac.uk/44938/
https://eprints.nottingham.ac.uk/44938/