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Platelet activation state in early stages of COVID-19

Filippo Consolo1,2, Patrizia Della Valle3, Marco Saracino4

  • 1Vita-Salute San Raffaele University, Milan, Italy - consolo.filippo@unisr.it.

Minerva Anestesiologica
|March 22, 2022
PubMed

Insights

Early COVID-19 shows increased platelet activation. The Platelet Activation State (PAS) Assay may identify high-risk patients who could benefit from antiplatelet therapy.

Area of Science:

  • Hematology
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • Platelet activation in early COVID-19 is not well understood.
  • The role of antiplatelet therapy in COVID-19 patients is debated.
  • Characterizing platelet activation is crucial for understanding disease progression.

Purpose of the Study:

  • To investigate platelet activation in hospitalized COVID-19 patients.
  • To assess the utility of the Platelet Activation State (PAS) Assay in early COVID-19.
  • To determine if platelet activation correlates with clinical outcomes.

Main Methods:

  • Hospitalized COVID-19 patients (N.=16) and healthy controls (N.=24) were enrolled.
  • Platelet activation was measured using the modified prothrombinase PAS Assay within 24 hours of admission.
  • Data were compared between COVID-19 patients and controls.

Main Results:

  • COVID-19 patients exhibited significantly higher platelet activation compared to controls (P=0.03).
  • The highest PAS values were observed in patients with the worst clinical outcome (death).
  • Standard coagulation parameters did not differ between patients with poor and good outcomes.

Conclusions:

  • Significant platelet activation occurs in the early stages of COVID-19.
  • The PAS Assay can identify patients at high risk for poor outcomes.
  • Patient-specific platelet activation profiles may guide antiplatelet therapy decisions.
Abstract

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