Paroxysmal tachycardia - Definition

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Paroxysmal tachycardia (or Bouveret-Hoffmann syndrome) is the acceleration of the heart rate, lasting from just a few seconds to several hours. The heart rate can reach over 200 beats per minute, and the condition usually resolves itself. In clinical practice we classify two types of paroxysmal tachycardia: ventricular tachycardia, which can manifest abruptly and often disappears within 30 seconds; and supraventricular tachycardia, commonly observed in children with no known heart problems. The type of condition can be determined using electrocardiography during an episode.