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May 10, 2004British Journal of Haematology

Platelet degranulation and monocyte–platelet complex formation are increased in the acute and convalescent phases after ischaemic stroke or transient ischaemic attack

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Key result

Ischaemic cerebrovascular disease in acute and convalescent phases was associated with higher median percentage CD62P expression and monocyte-platelet complexes compared to controls (P<=0.02).

Why the study?

Are platelet degranulation and monocyte-platelet complex formation increased in the acute and convalescent phases after ischaemic stroke or TIA compared to controls?

Population

149 patients with ischaemic cerebrovascular disease in acute or convalescent phases after ischaemic stroke…

Design

Cohort

Authors

DMDominick J. H. McCabeVascular MedicinePHPaul HarrisonCross-Cutting CardiologyIMIan MackieUniversity College London

Discussion

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Implication

Hypothesis-generating for platelet activation in cerebrovascular disease; prospective studies needed before clinical adoption.

Study Design

Type

Case-Control (n=176)

Structured PICO

Are platelet degranulation and monocyte-platelet complex formation increased in the acute and convalescent phases after ischaemic stroke or TIA compared to controls?

P
Population
176 participants including 79 acute and 70 convalescent ischaemic cerebrovascular disease patients, and 27 controls without CVD.
C
Comparator
Controls without CVD (n=27)
O
Outcome
Expression of CD62P-, CD63-, and PAC1-binding, and percentages of leucocyte-platelet complexes measured by whole blood flow cytometrysurrogate

Main Result

p-value: p=<=0.02

Platelet and endothelial activation, evidenced by increased CD62P expression and monocyte-platelet complexes, persists in both acute and convalescent phases of ischaemic stroke or TIA despite antithrombotic therapy.

Cite This Study

McCabe et al. (2004) conducted a case-control in Ischaemic stroke or transient ischaemic attack (n=176). Ischaemic cerebrovascular disease vs. Controls without CVD was evaluated on Percentage CD62P expression and monocyte-platelet complexes (p=<=0.02). Ischaemic cerebrovascular disease in acute and convalescent phases was associated with higher median percentage CD62P expression and monocyte-platelet complexes compared to controls (P<=0.02).

synapsesocial.com/papers/6a5e4070ffe7d48a36d8941ahttps://doi.org/10.1111/j.1365-2141.2004.04983.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Flow Cytometric Detection of Activated Platelets: Comparison of Determining Shape Change, Fibrinogen Binding, and P-Selectin Expression1995 · 133 citations
  2. 2P-selectin mediates Ca(2+)-dependent adhesion of activated platelets to many different types of leukocytes: detection by flow cytometry1992 · 116 citations
  3. 3Circulating Platelets Show Increased Activation in Patients with Acute Cerebral Ischemia1999 · 126 citations
  4. 4Platelet-Leukocyte Cross Talk in Whole Blood2000 · 201 citations
  5. 5Shear-induced platelet aggregation in cerebral ischemia.1994 · 91 citations