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Diagnosis of Supraventricular tachycardia

Diagnosis can usually be confirmed and other causes of a fast heart rate ruled out by using an electrocardiogram (ECG) during an episode of SVT. ECGs trace the rhythm and electrical activity of the heart. They record any abnormal findings in the heart's electrical impulses. Electrodes are placed on the chest, leg and arms and the results are printed on graph paper. Sometimes a 24-hour ECG is used to show a change in rhythm over time.

Further tests may be advised once episodes of SVT are confirmed. These aim to determine the exact location of the heart that is triggering the episodes of SVT.

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