Atrioventricular Nodal Reentrant Tachycardia (AVNRT)

Atrioventricular Nodal Reentrant Tachycardia affects heart rhythm. Learn its causes, symptoms, and treatments to better manage your heart health.

11 September, 2025

Atrioventricular Nodal Reentrant Tachycardia (AVNRT) is a common arrhythmia. Discover causes, symptoms, and management strategies to protect your heart health.

What are the main causes of atrioventricular nodal reentrant tachycardia (AVNRT)?

  • AVNRT often arises from an extra electrical pathway in the atrioventricular node, disrupting normal heart rhythm and leading to recurrent rapid heartbeat episodes.
  • Genetic predisposition and family history of arrhythmias may increase the risk of developing AVNRT, particularly in younger adults and individuals with inherited conditions.
  • Stress, caffeine, and certain medications can trigger episodes of AVNRT, especially in people who already have a structurally abnormal or sensitive conduction system.
    AVNRT common fast rhythm disorder in the heart

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Key symptoms of atrioventricular nodal reentrant tachycardia (AVNRT) to watch for

  • Patients commonly experience sudden palpitations or fluttering sensations in the chest, often accompanied by a fast but regular heartbeat lasting from minutes to hours.
  • Dizziness, shortness of breath, and chest discomfort frequently occur during AVNRT episodes, especially in physically active individuals or those with underlying heart disease.
  • Anxiety and fatigue may follow prolonged AVNRT episodes, with symptoms often worsening if the condition remains undiagnosed or untreated for an extended period.

How can you prevent atrioventricular nodal reentrant tachycardia (AVNRT) effectively?

  • Avoid excessive caffeine, alcohol, and stimulants, as these substances can increase the likelihood of triggering recurrent AVNRT episodes in vulnerable individuals.
  • Practice stress management techniques such as yoga, meditation, and deep breathing to stabilize the autonomic nervous system and reduce arrhythmia frequency.
  • Seek regular cardiac checkups and follow medical advice, including prescribed medications or ablation therapy, to effectively prevent severe complications from AVNRT.
    Atrioventricular Nodal Reentrant Tachycardia Symptoms show palpitations

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Images visual examples of atrioventricular nodal reentrant tachycardia (AVNRT)

Atrioventricular Nodal Reentrant Tachycardia (AVNRT) is a type of supraventricular tachycardia caused by abnormal electrical reentry in the heart’s AV node, producing sudden rapid heartbeat episodes.

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Supraventricular Tachycardia often includes AVNRT type
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AVNRT Vagal Maneuvers help slow rapid heartbeat

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Managing Atrioventricular Nodal Reentrant Tachycardia (AVNRT) requires awareness of triggers and treatments. Stay informed to safeguard your heart rhythm daily.