Exploring atrioventricular (AV) block symptoms and risk

Atrioventricular (AV) Block affects heart rhythm. Discover its causes, symptoms, and treatment options to improve cardiovascular health.

11 September, 2025

Atrioventricular (AV) Block is a heart condition where signals between atria and ventricles slow or stop, leading to irregular rhythms and health complications.

What are the main causes of atrioventricular (AV) block?

  • Degeneration of the heart’s electrical conduction system with aging is a common cause of AV block, leading to abnormal heart rhythm and impaired pumping function.
  • Certain heart diseases, including coronary artery disease and myocarditis, can damage conduction pathways and disrupt the normal transmission of electrical signals in the heart.
  • Medications like beta-blockers, calcium channel blockers, or digoxin can slow electrical conduction in the heart and trigger different degrees of AV block.
    AV Block symptoms showing hidden danger in heart

>>> Discover more: Premature Ventricular Contractions (PVCs) causes and risks

Key symptoms of atrioventricular (AV) block to watch for

  • Persistent fatigue and weakness often occur due to the heart’s inability to pump blood effectively when electrical signals are partially or completely blocked.
  • Episodes of dizziness or fainting can result from reduced blood flow to the brain caused by slow or irregular heart rhythms linked to AV block.
  • Shortness of breath and chest discomfort may develop when the heart struggles to maintain circulation during episodes of conduction disturbance in AV block.

How can you prevent atrioventricular (AV) block effectively?

  • Maintain heart health by controlling blood pressure, cholesterol, and diabetes, as these conditions increase the risk of conduction system damage and AV block.
  • Avoid misuse of medications that may interfere with electrical conduction, and always consult a doctor before taking drugs affecting heart rhythm regulation.
  • Adopt a heart-healthy lifestyle with regular exercise, balanced diet, limited alcohol, and no smoking to reduce overall cardiovascular risk and protect conduction.
    Causes of AV Block linked with heart weakness

>>> Discover more: Premature Ventricular Contractions (PVCs) causes and risks

Images visual examples of atrioventricular (AV) block

Atrioventricular AV Block is a condition where the heart’s electrical signals are delayed or blocked, causing slower rhythms that may affect blood circulation and health.

Atrioventricular block types reveal cardiac issues
AV Block treatment brings hope to weak hearts
AV Block ecg detects hidden electrical problem
Complete heart block a serious heart emergency
AV node block interrupts heart signal pathway
Pacemaker for AV Block restores steady rhythm
Congenital heart block a challenge from birth

>>> Discover more: Premature Atrial Contractions (PACs) symptoms guide

Managing atrioventricular (AV) block requires awareness, timely diagnosis, and proper treatment, helping restore rhythm and maintain strong cardiovascular health.