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However, if you have long or frequent episodes, your doctor may recommend the following: Most people with supraventricular tachycardia do not require medical treatment.

Supraventricular tachycardia care at Mayo Clinic.

This test allows your doctor to see the location of the arrhythmia and what may be causing it. In addition, your cardiologist can use the electrodes to stimulate your heart to beat at rates that may trigger - or stop - the arrhythmia.

Once in place, the electrodes can map the spread of electrical signals through your heart. In this test, doctors thread thin tubes (catheters) tipped with electrodes through your blood vessels to several areas within your heart. Your doctor observes how your heart and the nervous system that controls it respond to the change in angle.Įlectrophysiological testing and mapping. The table is then tilted as if you were standing up. Your heart rate and blood pressure are monitored as you lie flat on a table. Your doctor may recommend this test if you've had fainting spells. If you can't exercise and your doctor thinks heart disease may be causing your arrhythmia, you may receive a drug to stimulate your heart in a way that's similar to exercise. During a stress test, you'll be asked to exercise on a treadmill or stationary bicycle while your heart activity is monitored. For some people, supraventricular tachycardia is triggered or worsened by stress or exercise. If your doctor doesn't find a heart rhythm problem during those tests, you may need other tests, such as: This device detects abnormal heart rhythms and is implanted under the skin in the chest area. In this noninvasive test, a hand-held device (transducer) placed on your chest uses sound waves to produce images of your heart's size, structure and motion. For sporadic episodes of SVT, you may be asked to wear an ECG device for a longer period of time (up to 30 days or until you have an SVT episode or arrhythmia or typical symptoms). Event monitor or mobile telemetry device.This portable ECG device can be worn for a day or more to record your heart's activity as you go about your routine. An ECG measures the timing and duration of each electrical phase in your heartbeat.

During an ECG, sensors (electrodes) that can detect the electrical activity of your heart are attached to your chest and sometimes to your limbs.