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Published on: November 5, 2021
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.
Abstract:
Knowledge of thrombosis in children with SARS-CoV-2 is scarce. In this multicentre national cohort of children with SARS-CoV-2 involving 49 hospitals, 4 patients out of 537 infected children developed a thrombotic complication (prevalence of 0.7% (95% CI: 0.2% to 1.9%) out of the global cohort and 1.1% (95% CI: 0.3% to 2.8%) out of the hospitalised patients). We describe their characteristics and review other published paediatric cases. Three out of the four patients were adolescent girls, and only two cases had significant thrombotic risk factors. In this paediatric cohort, D-dimer value was not specific enough to predict thrombotic complications. Adolescence and previous thrombotic risk factors may be considered when initiating anticoagulant prophylaxis on children with SARS-CoV-2 disease (COVID-19).
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