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Platelet size in stroke patients

T O'Malley1, P Langhorne, R A Elton

  • 1Department of Medicine for the Elderly, Royal Infirmary of Edinburgh, Scotland.

Stroke
|June 1, 1995
PubMed
Summary
This summary is machine-generated.

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Increased mean platelet volume and reduced platelet count are associated with acute and chronic cerebral ischemia. These platelet changes may precede stroke events, warranting further investigation into their role in cerebrovascular disease.

Area of Science:

  • Hematology
  • Neurology
  • Cerebrovascular Disease

Background:

  • Large platelets exhibit heightened reactivity and prothrombotic potential.
  • Accurate mean platelet volume (MPV) estimation relies on precise automated analyzer methodology.
  • Discrepancies in prior studies on MPV in cerebral ischemia may stem from methodological variations.

Purpose of the Study:

  • To investigate mean platelet volume and platelet count in stroke patients using precise methodology.
  • To compare platelet variables in acute and chronic phases of cerebral ischemia with age- and sex-matched controls.

Main Methods:

  • Study included 58 consecutively admitted stroke patients.
  • Platelet variables were measured during acute (<48 hours) and chronic (>6 months) phases post-stroke.

Related Experiment Videos

  • Control group comprised age- and sex-matched individuals without acute vascular events.

    • Main Results:

    • Mean platelet volume was significantly higher in acute stroke patients (11.3 fL) versus controls (10.1 fL).
    • Platelet count was reduced in stroke patients (255 x 10(9)/L) compared to controls (299 x 10(9)/L).
    • Platelet changes persisted in survivors and did not correlate with 6-month outcomes.

    Conclusions:

    • Elevated mean platelet volume and reduced platelet count characterize both acute and nonacute phases of cerebral ischemia.
    • These observed platelet alterations may precede cerebrovascular events.
    • Further research is recommended to elucidate the predictive role of these platelet changes.