Prevalence of thrombotic complications in children with SARS-CoV-2

David Aguilera-Alonso1,2, Sara Murias3, Amelia Martínez-de-Azagra Garde4

  • 1Pediatric Infectious Diseases Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain david.aguilera@salud.madrid.org.

Insights

Thrombosis is rare in children with SARS-CoV-2 (COVID-19), affecting 0.7% of infected children. Adolescents and those with prior risk factors may benefit from anticoagulant prophylaxis.

Area of Science:

  • Pediatric infectious diseases
  • Hematology
  • Cardiovascular complications

Background:

  • Limited data exists on thrombosis in pediatric SARS-CoV-2 (COVID-19) cases.
  • Thrombotic events are a serious concern in viral infections.

Purpose of the Study:

  • To determine the prevalence of thrombotic complications in children with SARS-CoV-2.
  • To describe the characteristics of pediatric patients experiencing thrombosis post-SARS-CoV-2 infection.
  • To review existing literature on pediatric thrombosis related to SARS-CoV-2.

Main Methods:

  • Multicenter national cohort study involving 537 pediatric patients with SARS-CoV-2 across 49 hospitals.
  • Analysis of patient characteristics, thrombotic events, and D-dimer levels.
  • Literature review of published pediatric cases of SARS-CoV-2-associated thrombosis.

Main Results:

  • Four out of 537 infected children (0.7%) developed thrombotic complications.
  • Prevalence was 1.1% among hospitalized pediatric patients.
  • Three of the four affected patients were adolescent girls; two had pre-existing thrombotic risk factors.
  • D-dimer levels were not sufficiently specific for predicting thrombosis in this cohort.

Conclusions:

  • Thrombotic complications, though uncommon, occur in children with SARS-CoV-2 (COVID-19).
  • Adolescent age and pre-existing thrombotic risk factors may warrant consideration for anticoagulant prophylaxis.
  • Further research is needed to refine risk stratification and management strategies for pediatric thrombosis in COVID-19.

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