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Aspirin resistance is more common in lacunar strokes than embolic strokes and is related to stroke severity

Aspirin resistance is more common in lacunar strokes than embolic strokes and is related to stroke severity
Aspirin resistance is more common in lacunar strokes than embolic strokes and is related to stroke severity
The aim of this study was to investigate the relationship between aspirin resistance, ischaemic stroke subtype, stroke severity, and inflammatory cytokines. Aspirin resistance was assessed by thrombelastography in 45 people with ischaemic stroke and 25 controls. Plasma interleukin (IL)-6 was measured. Stroke severity was assessed using the modified Rankin scale and National Institute of Health Stroke Score within 72 h of stroke. Aspirin resistance was more common in the stroke than the control group (67% versus 40%, P=0.028), and within the stroke group the aspirin-resistant group had a higher Rankin score (4.0 versus 2.0, P=0.013). Aspirin resistance was greater in lacunar than embolic strokes (platelet activation 79% versus 59%, P=0.020). The stroke aspirin-resistant group had higher levels of IL-6 than the stroke aspirin-sensitive group (2.4+/-1 versus 1.8+/-0.9 ng/mL, P=0.037). Using multivariate analysis, we examined the interrelationships between aspirin resistance, IL-6, and stroke severity. These analyses showed that IL-6 was independently associated with stroke severity as the outcome (B=3.738, P=0.036), and aspirin resistance was independently associated with IL-6 (B=0.765, P=0.005) as the outcome. In conclusion, aspirin resistance is related to stroke severity and aspirin resistance is more common in lacunar strokes than embolic strokes.
0271-678X
1196-1203
Englyst, Nicola A.
f84399af-7265-4224-b556-102c3aa272b0
Horsfield, Gill
4a8b196e-5f9b-4ae3-8fcd-d53a5b8fa74d
Kwan, Joseph
2f6e316b-60bc-48a4-8b96-464b965ea6a5
Byrne, Christopher D.
1370b997-cead-4229-83a7-53301ed2a43c
Englyst, Nicola A.
f84399af-7265-4224-b556-102c3aa272b0
Horsfield, Gill
4a8b196e-5f9b-4ae3-8fcd-d53a5b8fa74d
Kwan, Joseph
2f6e316b-60bc-48a4-8b96-464b965ea6a5
Byrne, Christopher D.
1370b997-cead-4229-83a7-53301ed2a43c

Englyst, Nicola A., Horsfield, Gill, Kwan, Joseph and Byrne, Christopher D. (2008) Aspirin resistance is more common in lacunar strokes than embolic strokes and is related to stroke severity. Journal of Cerebral Blood Flow & Metabolism, 28 (6), 1196-1203. (doi:10.1038/jcbfm.2008.9). (PMID:18319729)

Record type: Article

Abstract

The aim of this study was to investigate the relationship between aspirin resistance, ischaemic stroke subtype, stroke severity, and inflammatory cytokines. Aspirin resistance was assessed by thrombelastography in 45 people with ischaemic stroke and 25 controls. Plasma interleukin (IL)-6 was measured. Stroke severity was assessed using the modified Rankin scale and National Institute of Health Stroke Score within 72 h of stroke. Aspirin resistance was more common in the stroke than the control group (67% versus 40%, P=0.028), and within the stroke group the aspirin-resistant group had a higher Rankin score (4.0 versus 2.0, P=0.013). Aspirin resistance was greater in lacunar than embolic strokes (platelet activation 79% versus 59%, P=0.020). The stroke aspirin-resistant group had higher levels of IL-6 than the stroke aspirin-sensitive group (2.4+/-1 versus 1.8+/-0.9 ng/mL, P=0.037). Using multivariate analysis, we examined the interrelationships between aspirin resistance, IL-6, and stroke severity. These analyses showed that IL-6 was independently associated with stroke severity as the outcome (B=3.738, P=0.036), and aspirin resistance was independently associated with IL-6 (B=0.765, P=0.005) as the outcome. In conclusion, aspirin resistance is related to stroke severity and aspirin resistance is more common in lacunar strokes than embolic strokes.

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Published date: June 2008

Identifiers

Local EPrints ID: 61096
URI: http://eprints.soton.ac.uk/id/eprint/61096
ISSN: 0271-678X
PURE UUID: fa55ae70-2b76-47e9-97d5-35f076c30039
ORCID for Nicola A. Englyst: ORCID iD orcid.org/0000-0003-0508-8323
ORCID for Christopher D. Byrne: ORCID iD orcid.org/0000-0001-6322-7753

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Date deposited: 25 Sep 2008
Last modified: 16 Mar 2024 03:14

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Author: Gill Horsfield
Author: Joseph Kwan

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