Supraventricular tachycardia (SVT) is an abnormally fast heartbeat. It’s a general term that includes many types of heart arrhythmias.
A normal heart rate is 60 to 100 beats per minute. A heart rate of more than 100 beats per minute is called a tachycardia. Heart rates over 100 beats per minute that occur above the ventricles in the atria are known as supraventricular tachycardia.
Things that may lead to SVT include:
Signs and symptoms of supraventricular tachycardia may include:
To diagnose supraventricular tachycardia, a Deborah physician will test for conditions that may trigger SVT, such as heart disease or a problem with the thyroid gland. The doctor may also perform tests specific to arrhythmia, including: