TY - GEN ID - cogprints4254 UR - http://cogprints.org/4254/ A1 - Sarubbi, Berardo A1 - Vergara, Pasquale A1 - D?Alto, Michele A1 - Sessa, Francesco A1 - Calabṛ, Raffaele Y1 - 2003/10// N2 - A 15-year-old girl, previously asymptomatic for palpitations, underwent a successful atrial septal defect (ASD) device closure. Twelve weeks after the procedure, the patient was admitted complaining of dyspnoea on effort and palpitations. The twelve-lead ECG showed a narrow QRS tachycardia with slight heart rate irregularity, with a mean HR of 170bpm. P waves were not clearly identified with a suspicious of negative P-waves in II, III and aVF leads. No clear relationship could be observed between the suspected P waves and QRS complexes PB - Indian Pacing and Electrophysiology Group KW - Intra-atrial Re-entrant Tachycardia; Wenckebach Periodicity TI - Intra-atrial Re-entrant Tachycardia with Wenckebach Periodicity SP - 270 AV - public EP - 272 ER -