Paroxysmal reciprocating supraventricular tachycardia in infants: electrophysiologically guided medical treatment and long-term evolution of the re-entry circuit

Abstract

Supraventricular tachycardia disappeared in approximately 50% of the patients during the first year of life and in another 20% thereafter. The necessity for A treatment is the only predictor of persistence of the re-entry circuit during the first year of life. Transesophageal atrial pacing is useful in guiding the medical treatment.