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Supraventricular tachycardia (SVT, PSVT) is one type of heart rhythm disorder in which the heart beats faster than normal. Symptoms may include dizziness, shortness of breath, anxiety, and palpitations. Treatment may include vagal maneuvers, medications, and surgery.
Aberrant conduction during SVT results in a wide-complex tachycardia. (See Etiology and Workup.) SVT is a common clinical condition that occurs in persons of all age groups, and treatment can be challenging. Electrophysiologic studies are often needed to determine the source of the conduction abnormalities.