Complications of Atrioventricular Nodal Reentry Tachycardia (AVNRT)

Overview

Atrioventricular nodal reentry tachycardia (AVNRT) is a type of arrhythmia that affects the heart's electrical system. Over time, AVNRT can have different effects on individuals and may lead to certain complications. However, treatment can help manage the condition and reduce the risk of complications.

Complications commonly associated with AVNRT include:

Fainting: Loss of consciousness can occur during an episode of AVNRT. If the heart rate is too high, it can cause dizziness and in severe cases, lack of adequate blood flow to the brain resulting in a loss of consciousness.
Palpitations: People with AVNRT often experience a sensation of rapid, pounding, or fluttering heartbeats. These palpitations can be uncomfortable and may cause anxiety or distress.
Complete AV Block: During the treatment of AVNRT, there is a small risk of developing complete atrioventricular block, which is a disruption in the electrical signals between the atria and ventricles of the heart. This can lead to a slow heart rate or even heart block. However, the risk of this complication is very low.
Recurrence of AVNRT: After undergoing treatment for AVNRT, there is a chance that the condition may recur. The recurrence rates are approximately 3% to 7%. If this happens, further treatment options such as repeat catheter ablation or medication may be considered.
Fatigue: The rapid heart rate during AVNRT episodes can cause the heart to work harder than normal, leading to fatigue or tiredness.
Reduced quality of life: AVNRT episodes can disrupt daily activities and impact overall quality of life.

It's important to remember that each individual's situation may vary, so it's best to consult with your healthcare provider for personalized advice and recommendations. They will be able to assess your specific condition and provide guidance on the most appropriate treatment options and preventive measures for you.