What are the types of supraventricular arrhythmias?

What are the types of supraventricular arrhythmias?

Supraventricular arrhythmias begin in the atria or the upper chambers of your heart. Types of supraventricular arrhythmias include:

• Paroxysmal supraventricular tachycardia (PSVT): A rapid but regular heart rhythm that comes from the atria. This type of arrhythmia begins and ends suddenly.
• Accessory pathway tachycardias (bypass tract tachycardias): A fast heart rhythm caused by an extra, abnormal electrical pathway or connection between the atria and ventricles. The impulses travel through the extra pathways as well as the usual route. This allows the impulses to travel around your heart very quickly, causing it to beat unusually fast (example: Wolff- Parkinson-White syndrome).
• AV nodal re-entrant tachycardia (AVNRT): A fast heart rhythm caused by the presence of more than one pathway through the atrioventricular (AV) node.
• Atrial tachycardia: A rapid heart rhythm that starts in the atria.
• Atrial fibrillation: A very common irregular heart rhythm. This happens when many impulses begin and spread through the atria, competing for a chance to travel through the AV node. This results in a disorganized rapid and irregular rhythm. Because the impulses are traveling through the atria in a disorderly fashion, there’s a loss of coordinated atrial contraction.
• Atrial flutter: An atrial arrhythmia caused by one or more rapid circuits in the atrium. Atrial flutter is usually more organized and regular than atrial fibrillation.