Number of Pacing Stimuli for Attaining a Plateau Post-Pacing Interval for Diagnosing Re-Entrant Atrial Tachycardia

BACKGROUND: ) of overdrive pacing is an indicator of establishing entrainment pacing. OBJECTIVES: for attaining a plateau post-pacing interval (NPP) can be used for identifying re-entrant atrial tachycardia (AT) circuit. METHODS: was unavailable, the relationship between NPP and findings on the activation maps was evaluated. RESULTS: was unavailable, 7 of 8 NPP =3 pacing sites were on the circuit, whereas all 11 NPP >5 pacing sites were out of the circuit on the activation maps. CONCLUSIONS: NPP obtained using a single mapping catheter may help identify a re-entrant AT circuit without directly confirming the establishment of entrainment pacing.