cardiovascular

AV nodal reentrant tachycardia

AV-nodal reentrant (AVNRT) is a type of abnormal fast heart rhythm. It is a type of supraventricular tachycardia (SVT), meaning that it originates from a location within the heart above the bundle of His. AV nodal reentrant tachycardia is the most common regular supraventricular tachycardia. It is more common in women than men. The main symptom is . Treatment may be with specific physical maneuvers, medications, or, rarely, synchronized cardioversion. Frequent attacks may require radiofrequency ablation, in which the abnormally conducting in the heart is destroyed.

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Symptoms — what it feels like

·, chest tightness, neck pulsation

How it's found

·, electrophysiological study

Treatment

·vagal manoeuvres, adenosine, ablation

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Plain-language summary adapted from Wikipedia. Not medical advice.