High-Grade Atrioventricular Nodal Block: An Unusual Presentation of COVID-19 Infection

Abstract

While respiratory system disease, including pneumonia, remains the principal clinical presentation, several cardiovascular complications of coronavirus disease 2019 (COVID-19) including myocardial infarction, myocarditis, and tachyarrhythmias were reported. We present an unusual case of fatal high-grade atrioventricular nodal block in a young adult male with COVID-19 infection in the occurrence of normal coronary arteries. Marked inflammatory response and myocarditis are the most likely contributing factors to electrical conduction system disturbance. It is appropriate for the clinicians to be aware of the fact that COVID-19 can atypically present as bradyarrhythmia and conduction abnormalities.

Keywords

• cardiology
• heart block
• atrioventricular nodal block
• infectious disease
• coronavirus disease 2019 infection