Yes, atrial flutter is a type of AVNRT (atrioventricular nodal re-entry tachycardia). AVNRT is an abnormally fast heart rhythm caused by a problem in the electrical conduction system of the heart. It is a type of supraventricular tachycardia (SVT) and is the most common type of SVT.
Atrial flutter is a type of AVNRT caused by a re-entry circuit within the atria. The electrical activity in the atria circulates in a loop, resulting in the heart beating rapidly. Atrial flutter is usually faster than atrial fibrillation and usually results in a heart rate of 150-250 beats per minute.
Atrial flutter can be caused by a variety of factors. Common causes include certain medications, alcohol, caffeine, and stress. It can also be caused by underlying heart conditions such as congestive heart failure or coronary artery disease.
Treatment for atrial flutter depends on the severity of the condition. In some cases, medications such as beta blockers or calcium channel blockers can be used to slow the heart rate. In more severe cases, the electrical circuit in the atria can be interrupted with an electrical shock or a surgical procedure called an ablation.
Atrial flutter is a type of AVNRT and can be a serious condition. If you experience any symptoms such as a rapid heart rate, chest pain, or shortness of breath, you should seek medical attention immediately.