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Platelet activation and mitral valve prolapse.

M Fisher, B Weiner, I S Ockene

    Neurology
    |March 1, 1983
    PubMed
    Summary
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    Mitral valve prolapse (MVP) patients often show signs of platelet activation, even without stroke history. This suggests a higher risk for blood clots and potential emboli in a specific subgroup of MVP individuals.

    Area of Science:

    • Cardiology
    • Neurology
    • Hematology

    Background:

    • Mitral valve prolapse (MVP) is linked to cerebral ischemia, particularly in young adults.
    • Intracardiac thrombi leading to cerebral embolization is a suspected mechanism.
    • Platelets are crucial in thrombus formation.

    Purpose of the Study:

    • To investigate platelet activation in asymptomatic MVP patients.
    • To identify a potential biomarker for increased embolic risk in MVP.

    Main Methods:

    • Assessed platelet activation marker (platelet factor 4) levels.
    • Studied patients with MVP but no prior stroke history.

    Main Results:

    • Elevated platelet factor 4 was found in 36% (12 of 33) of asymptomatic MVP patients.

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  • This indicates frequent platelet activation in this cohort.
  • Suggests a subgroup of MVP patients with activated platelets at higher embolic risk.

    • Conclusions:

    • Platelet activation is common in asymptomatic MVP.
    • Platelet factor 4 may help identify MVP patients at increased risk of emboli.
    • Further research into MVP and thromboembolic events is warranted.