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What is supraventricular tachycardia (SVT)?

• Supraventricular tachycardia (SVT) is as an abnormally fast or erratic heartbeat that affects the heart's upper chambers. An abnormal heartbeat is called an arrhythmia. SVT is also called paroxysmal supraventricular tachycardia. A normal heart rate is 60 to 100 beats per minute.

What is the management of supraventricular tachycardia?

• … the management of supraventricular tachycardias dependent on conduction through the AV node (ie, atrioventricular nodal reentrant tachycardia and atrioventricular reentrant tachycardia) and for ventricular …

What are the most common SVTs?

• The most common SVTs include atrioventricular nodal re-entrant tachycardia, atrioventricular re-entrant tachycardia and atrial tachycardia. In many cases, the underlying mechanism can be deduced from electrocardiography during tachycardia, comparing it with sinus rhythm, and assessing the onset and offset of tachycardia.

What are the risk factors for SVT?

• Some types of SVT are more common in people who are middle-aged or older. Coronary artery disease, other heart problems and previous heart surgery. Narrowed heart arteries, a heart attack, abnormal heart valves, prior heart surgery, heart failure, cardiomyopathy and other heart damage increase your risk of developing SVT.