Myocarditis Following mRNA COVID-19 Vaccine

Pediatr Emerg Care. 2021 Nov 1;37(11):583-584. doi: 10.1097/PEC.0000000000002557.


A growing number of adolescents are being diagnosed with acute myocarditis following mRNA COVID-19 vaccinations. This case describes an adolescent who presented to the emergency department with chest pain and tachycardia following the Pfizer-BioNTech COVID-19 vaccination. Point-of-care ultrasound was performed prior to the return of laboratory studies and revealed depressed left ventricular systolic function. Point-of-care ultrasound may be a tool used to rapidly diagnose or risk stratify patients with potential post-COVID-19 vaccine myocarditis.

MeSH terms

  • Adolescent
  • COVID-19 Vaccines
  • COVID-19*
  • Humans
  • Myocarditis* / diagnosis
  • Myocarditis* / etiology
  • RNA, Messenger
  • SARS-CoV-2


  • COVID-19 Vaccines
  • RNA, Messenger