Background: COVID-19 disease has been associated with several cardiovascular complications that rarely occur in the acute phase of the disease.
Case Report: A 13-year-old pediatric patient with congenital sideroblastic anemia associated with YARS2 mutation presenting with COVID-19 infection and worsening pericardial effusion followed by a respiratory failure refractory to supplemental oxygen therapy leading to cardiac arrest.
Discussion: This case highlights the rapid deterioration that can occur in children with serious hematologic disorders in the context of COVID-19 especially when complicated with pericardial effusion.