Incidence and characteristics of arterial thromboemboli in patients with COVID-19

Nancy Glober1, Lauren Stewart1, JangDong Seo1

  • 1Indiana University, Indianapolis, Indiana, United States.

Thrombosis Journal
|December 21, 2021
PubMed

Insights

COVID-19 infection was linked to fewer arterial thromboemboli overall, but increased risk in extremities. Metabolic syndrome predicted clot formation in COVID-19 patients.

Area of Science:

  • Cardiovascular Medicine
  • Infectious Diseases
  • Epidemiology

Background:

  • Studies indicate COVID-19 is an independent risk factor for arterial thromboemboli.
  • Arterial thromboemboli, including myocardial infarction, ischemic stroke, and peripheral artery events, are serious complications.

Purpose of the Study:

  • To determine the incidence and location of arterial thromboemboli in patients with and without COVID-19.
  • To investigate the association of comorbidities with arterial thromboemboli in the context of COVID-19 infection.

Main Methods:

  • Cross-sectional analysis of the RECOVER database (45 US medical centers).
  • Data collected on 26,974 patients, stratified by COVID-19 status.
  • Chi-squared tests used to analyze associations between comorbidities, COVID-19 status, and arterial thromboemboli.

Main Results:

  • Arterial thromboemboli incidence was 0.13% in COVID-19 positive and 0.19% in COVID-19 negative patients.
  • Arterial thromboemboli were more common in extremities than core organs in COVID-19 patients (OR 2.04).
  • Metabolic syndrome predicted core (p=0.001) and extremity (p=0.010) arterial thrombus in COVID-19 patients. Statin use was associated with lower thrombus risk (p=0.014).

Conclusions:

  • Arterial thromboemboli were less common in patients with COVID-19 than in those without.
  • Metabolic syndrome may be associated with arterial clot formation in COVID-19 patients.
Abstract

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