A case of complete heart block in a COVID-19 infected patient

Faris I Haddadin1, Tala Eneizat Mahdawi2, Laith Hattar2

  • 1Department of Medicine at Mount Sinai St Luke's and West, New York, NY, USA.

Journal of Cardiology Cases
|September 9, 2020
PubMed

Insights

This case report highlights a rare instance where COVID-19 caused complete heart block and bradycardia in an elderly patient. Early recognition and monitoring are crucial for managing this unusual cardiac complication of the virus.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Virology

Background:

  • The COVID-19 pandemic has revealed diverse clinical manifestations.
  • Cardiac complications associated with SARS-CoV-2 infection are increasingly recognized.
  • The impact of COVID-19 on the cardiac conduction system remains an area of active investigation.

Observation:

  • An elderly female patient with multiple comorbidities presented with typical COVID-19 symptoms.
  • The patient developed bradycardia secondary to complete heart block.
  • Pacemaker placement was required due to the cardiac conduction abnormality.

Findings:

  • This case suggests a potential, albeit rare, complication of COVID-19 affecting the heart's electrical conduction system.
  • The virus's capacity to impact multiple organ systems is further underscored.
  • Complete heart block leading to bradycardia is an unusual presentation of SARS-CoV-2 infection.

Implications:

  • Clinicians should maintain a high index of suspicion for cardiac conduction abnormalities in COVID-19 patients.
  • Further research is necessary to elucidate the mechanisms by which SARS-CoV-2 affects the cardiac conduction system.
  • Identifying metabolic and pharmacological risk factors is essential for early recognition and management of conduction blocks in COVID-19 patients.

Related Concept Videos

Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
354
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
2.2K
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
236
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
280
Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
10.2K
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
267