Related Experiment Video
Updated: Aug 27, 2025

Microelectrode Array Recording of Sinoatrial Node Firing Rate to Identify Intrinsic Cardiac Pacemaking Defects in Mice
Published on: July 5, 2021
Junctional bradycardia in a patient with COVID-19: A case report
1Department of Internal Medicine, College of Medicine, Najran University, Najran 1988, Saudi Arabia. dr.abuwaleed3733@hotmail.com.
Insights
This case study highlights a patient with coronavirus disease 2019 (COVID-19) who developed junctional bradycardia, a type of slow heart rhythm. Continuous cardiac monitoring is crucial for managing arrhythmias in COVID-19 patients.
Area of Science:
- Cardiology
- Infectious Diseases
- Electrophysiology
Background:
- Cardiac arrhythmias, including bradyarrhythmias, are recognized manifestations of coronavirus disease 2019 (COVID-19).
- This report details a case of junctional bradycardia potentially caused by sinus node dysfunction in a COVID-19 patient.
Observation:
- A 32-year-old woman with no prior medical history developed junctional bradycardia on hospitalization day 3.
- The patient remained hemodynamically stable despite episodes of nodal dysrhythmia and low heart rate.
- Elevated systemic inflammatory markers accompanied the cardiac rhythm disturbances.
Findings:
- The patient received antiviral and anti-inflammatory treatments for COVID-19.
- No antiarrhythmic medications were administered.
- Normal sinus rhythm was restored by day 12 of hospitalization.
Implications:
- Cardiac rhythm monitoring is essential in COVID-19 patients.
- Understanding the link between systemic inflammation and cardiac arrhythmias is critical for patient management.
- This case underscores the potential for COVID-19 to affect cardiac electrical activity.
Background:
Cardiac arrhythmias, including bradyarrhythmias, have been described as manifestations of coronavirus disease 2019 (COVID-19). Herein, we present a case of junctional bradycardia secondary to possible sinus node dysfunction in a patient with COVID-19.
Case Summary:
The patient was a 32-year-old woman with no significant medical history. On the third day of hospitalization, she developed junctional bradycardia while being hemodynamically stable. The episodes of nodal dysrhythmia with a low heart rate persisted for the next few days and were associated with elevated levels of systemic inflammatory markers. The patient received antiviral and anti-inflammatory treatments for the viral infection but no antiarrhythmic medications. She had a normal sinus rhythm on day 12.
Conclusion:
Cardiac rhythm monitoring, focusing on the association between cardiac arrhythmias and the systemic inflammatory response, is important in COVID-19 patients.
More Related Videos
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
Related Concept Videos
Decreased pulse rate
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
Dysrhythmias IV: Characteristics of Bradyarrhythmias
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Dysrhythmias II: Classification of Tachyarrhythmias
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias