Arrhythmias & electrophysiology
Number of Pacing Stimuli for Attaining a Plateau Post-Pacing Interval for Diagnosing Re-Entrant Atrial Tachycardia
- Study of overdrive pacing in re-entrant atrial tachycardia
Authors' conclusion
NPP obtained using a single mapping catheter may help identify a re-entrant AT circuit without directly confirming the establishment of entrainment pacing.
Study context
- Population
- Patients with re-entrant atrial tachycardia (AT) undergoing overdrive pacing43 ATs in 38 patients, NPP acquired at 193 pacing sites · pacing sites where PPIentrained was available 170 · pacing sites where PPIentrained was unavailable 23
- Participants
- 38 patients
- Comparison
- The relationship between NPP and post-pacing interval (PPI) under the establishment of entrainment pacing (PPIentrained); when PPIentrained was unavailable, the relationship between NPP and findings on the activation maps
Main finding
As reported in the abstract
PPIentrained - TCL ≤30 milliseconds (pacing sites where PPIentrained was available)
NPP =3
104 of 110
events
Further findings
| Outcome | NPP =3 | NPP 5 | NPP >5 | |
|---|---|---|---|---|
| Pacing site on the circuit on the activation maps (pacing sites where PPIentrained was unavailable) | 7 of 8 events | Not reported in the abstract | Not reported in the abstract | NPP 5, NPP >5: not reported in the abstract |
- Pacing site on the circuit on the activation maps (pacing sites where PPIentrained was unavailable): Pacing site out of the circuit on the activation maps (pacing sites where PPIentrained was unavailable): NPP > 5 events
- Pacing site on the circuit on the activation maps (pacing sites where PPIentrained was unavailable): Among 23 pacing sites where PPIentrained was unavailable
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Number of Pacing Stimuli for Attaining a Plateau Post-Pacing Interval for Diagnosing Re-Entrant Atrial Tachycardia. JACC Clin Electrophysiol. Published 20 March 2026. doi:10.1016/j.jacep.2026.02.020
Summarised from the published abstract; every number is checked against it