Supraventricular tachycardia (SVT) is a condition where the heart beats faster than normal due to improper electrical signals in the upper chambers of the heart. This rapid heartbeat can lead to symptoms such as palpitations, dizziness, or shortness of breath. SVT can occur in episodes and may last from a few seconds to several hours. The condition is often triggered by factors like stress, caffeine, or certain medications. While SVT is usually not life-threatening, it can be uncomfortable and may require treatment. Options include lifestyle changes, medications, or procedures like catheter ablation to correct the heart's electrical pathways.